INVESTIGACIÓN

@article{Garcia-Hernandez2020,

title = {Virtual body representation for rehabilitation influences on motor performance of cerebral palsy children},

author = {Garcia-Hernandez, Nadia and Guzman-Alvarado, Miguel and Parra-Vega, Vicente},

url = {https://doi.org/10.1007/s10055-020-00481-3},

doi = {10.1007/s10055-020-00481-3},

issn = {1434-9957},

year  = {2020},

date = {2020-10-29},

journal = {Virtual Reality},

abstract = {Game-based virtual reality systems have been shown to enhance motor function, motivation and therapy adherence in cerebral palsy (CP) children. In these systems, several types of virtual body representations have been implemented, however without conclusive support of guidelines nor the most appropriate choice for enhancing motor performance. Thus, the purpose of this study is to examine how the subjective experience of seeing and controlling a half-body avatar, or an abstract hand representation in a moderate immersion virtual environment (VE), for training upper limb movements may affect CP children's motor performance. To achieve that purpose, a game-like VE for training the reaching-releasing of objects was designed. Unlike previous studies, relevant task performance and cost function metrics were obtained from the analysis of kinematic and kinetic parameters of movement. Results show that visualizing the hand movement through an abstract object makes children perform faster, correct less to produce smoother movements, and use less mechanical energy than visualizing the arm movement through a realistic Avatar. These effects were more noticeable in the reaching than in the releasing phase of the task. Based on these findings, some recommendations are provided for the effective design and use of VE's for upper limb rehabilitation of CP children.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ramos-Oliveira2019,

title = {On ray tracing for sharp changing media},

author = {Ramos-Oliveira, Jorge and Baltazar, Arturo and Castelan, Mario},

url = {https://doi.org/10.1121/1.5125133},

doi = {10.1121/1.5125133},

year  = {2019},

date = {2019-07-10},

journal = {Journal of the Acoustic Society of America},

volume = {146},

number = {3},

pages = {1595-1604},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{{Luna-Aguilar}2019,

title = {Incorporation of acoustic sensors in the regulation of a mobile robot},

author = {Luna-Aguilar, Christian and Morales-Diaz, America and Castelan, Mario and Nadeu, Climent},

editor = {Taylor and Francis},

url = {https://doi.org/10.1080/01691864.2019.1573703},

doi = {10.1080/01691864.2019.1573703},

issn = {0169-1864},

year  = {2019},

date = {2019-01-01},

journal = {Advanced Robotics},

volume = {33},

number = {2},

pages = {61-73},

abstract = {This article introduces the incorporation of acoustic sensors for the localization of a mobile robot. The robot is considered as a sound source and its position is located applying a Time Delay of Arrival (TDOA) method. Since the accuracy of this method varies with the microphone array, a naviga- tion acoustic map that indicates the location errors is built. This map also provides the robot with navigation trajectories point-to-point and the control is capable to drive the robot through these trajectories to a desired configuration. The proposed localization method is thoroughly tested using both a 900 Hz square signal and the natural sound of the robot, which is driven near the desired point with an average error of 0.067 m.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Rico-Fernandez2019,

title = {A contextualized approach for segmentation of foliage in different crop species},

author = {Rico-Fernandez, Maria and Rios-Cabrera, Reyes and Castelan, Mario and Guerrero-Reyes, Hector and Juarez-Maldonado, Antonio},

editor = {Elsevier},

url = {https://doi.org/10.1016/j.compag.2018.11.033},

issn = {0168-1699},

year  = {2019},

date = {2019-01-01},

journal = {Computers and Electronics in Agriculture},

volume = {156},

pages = {378-386},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1080/10255842.2019.1580361,

title = {Biomechanical and functional effects of shoulder kinesio taping on cerebral palsy children interacting with virtual objects},

author = {Garcia-Hernandez, Nadia and Corona-Cortes, J. and Garc\'{i}a-Fuentes, L. and Gonzalez-Santibanez, R. and Parra-Vega, Vicente},

url = {https://doi.org/10.1080/10255842.2019.1580361},

doi = {10.1080/10255842.2019.1580361},

year  = {2019},

date = {2019-01-01},

journal = {Computer Methods in Biomechanics and Biomedical Engineering},

volume = {22},

number = {6},

pages = {676-684},

publisher = {Taylor and Francis},

abstract = {AbstractThe reaching of objects is usually practiced by CP children in conventional or Virtual Reality-based therapies to enhance motor skill performance. Recently, Kinesio Taping® method has been studied to increase mechanical stability and improve functional movement of the upper limb; however, its influence on CP children´s upper limb motion has been rarely quantified due to lack of sensory measurement. Therefore, in this paper, we evaluate the biomechanical and functional effects of applying shoulder Kinesio Taping® on CP children in the reaching-transporting of virtual objects, by using a low-cost tracking device, exact robust differentiation of data and a simple nonlinear biomechanical dynamic model of the trunk and arm.},

note = {PMID: 30829542},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Garcia-Hernandez2018,

title = {Electromyography Biofeedback Exergames to Enhance Grip Strength and Motivation},

author = {Garcia-Hernandez, Nadia and Garza-Martinez, K. and Parra-Vega, Vicente},

url = {https://www.ncbi.nlm.nih.gov/pubmed/29227162},

doi = {http://doi.org/10.1089/g4h.2017.0054},

year  = {2018},

date = {2018-02-01},

journal = {Games Health Journal},

volume = {7},

number = {1},

pages = {75-82},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Moreno-Ramos2017,

title = {COMPUTATION OF SUBOPTIMAL TEMPERATURE TRAJECTORIES WITH MONTE CARLO METHOD TO MAXIMIZE TOMATO (Solanum lycopersicum L.) PRODUCTION IN GREENHOUSE},

author = {Moreno-Ramos, E. and Morales-Diaz, America B. and Juarez-Maldonado, A. and De Alba-Romenus, K. and Benavides-Mendoza, A.},

editor = {COLEGIO POSTGRADUADOS},

issn = {1405-3195},

year  = {2017},

date = {2017-10-01},

journal = {Agrociencia},

volume = {51},

number = {7},

pages = {1-18},

abstract = {The objective of this study was to obtain a suboptimal temperature trajectory to maximize fresh weight (W_F) and harvested fruit weight (W_HF) of tomato (Solanum lycopersicum L.) using the Monte Carlo method. To achieve this objective, we posed a problem of dynamic optimization based on a non-linear dynamic crop growth model under greenhouse conditions. In the solution of this problem temperature restrictions are used in the range of 15 ºC to 30 ºC, which represents the mean temperature range during the day in the city of Saltillo. Optimization is done considering prediction horizons of 15 min in an interval of 120 d after transplant (dat) and using a dynamic mathematical tomato (Solanum lycopersicum L.) growth model evaluated in a chapel-type greenhouse in Saltillo, Coahuila (〖25〗^0 〖25〗^' 〖36〗^'' N, 〖100〗^0 59'44''W). The suboptimal temperature trajectory that maximizes fruit weight (W_F) was determined for the entire simulation time interval (0 to 120 dat). Moreover, the suboptimal temperature trajectory that maximized fruit weight (W_F) during pre-harvest (0 to 58 dat) and harvested fruit (W_HF) as of the beginning of harvest (day 59), described by the model until the end of simulation (120 dat). The results obtained show that the suboptimal temperature trajectory from day 59, which marks the beginning of harvest, was established around 15 ºC to maximize W_F and around 30 ºC for maximization of〖 W〗_F and W_HF. It could also be observed that the suboptimal temperature trajectory for both cases shows periods that emulate day and night, 15 ºC to 30 ºC, before day 59. The results obtained permit us to propose conditions for either maximizing fruit on the plant or harvested fruit, and the resulting temperature trajectories can be used to obtain a softened curve with more stable cycles that can be put into practice. },

keywords = {},

pubstate = {forthcoming},

tppubtype = {article}

}

@article{Guti\'{e}rrez2017,

title = {Synchronization Control for a Swarm of Unicycle Robots: Analysis of Different Controller Topologies},

author = {Guti\'{e}rrez, H. and Morales-Diaz, America B. and Nijmeijer, H.},

editor = {Wiley-Blackwell},

url = {http://onlinelibrary.wiley.com/doi/10.1002/asjc.1497/full



},

doi = {http://dx.doi.org/10.1002/asjc.1497},

issn = {1561-8625},

year  = {2017},

date = {2017-09-01},

journal = {Asian Journal of Control},

volume = {19},

number = {5},

pages = {1822-1833},

abstract = {This paper proposes a nonlinear synchronization controller for a swarm of unicycle robots performing a cooperative task, i.e., following a desired trajectory per robot while maintaining a prescribed formation. The effect of communication between robots is analyzed and several network topologies are investigated, e.g., all-to-all, ring type, undirected, among others. The stability analysis of the closed loop system is provided using the Lyapunov method. Experiments with four unicycle robots are presented to validate the control law and communication analysis. Accumulated errors over the experiment time are presented in order to determine which topology is most efficient.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Lopez-Juarez2017,

title = {A hybrid non-invasive method for internal/external quality assessment of potatoes},

author = {Lopez-Juarez, Ismael and Rios-Cabrera, Reyes and Hsieh,S J and Howarth, M .},

url = {https://doi.org/10.1007/s00217-017-2936-9},

doi = {10.1007/s00217-017-2936-9},

issn = {1438-2385},

year  = {2017},

date = {2017-07-11},

journal = {European Food Research and Technology},

abstract = {Consumers purchase fruits and vegetables based on its quality, which can be defined as a degree of excellence which is the result of a combination of characteristics, attributes and properties that have significance for market acceptability. In this paper, a novel hybrid active imaging methodology for potato quality inspection that uses an optical colour camera and an infrared thermal camera is presented. The methodology employs an artificial neural network (ANN) that uses quality data composed by two descriptors as input. The ANN works as a feature classifier so that its output is the potato quality grade. The input vector contains information related to external characteristics, such as shape, weight, length and width. Internal characteristics are also accounted for in the input vector in the form of excessive sugar content. The extra sugar content of the potato is an important problem for potato growers and potato chip manufacturers. Extra sugar content could result in diseases or wounds in the potato tuber. In general, potato tubers with low sugar content are considered as having a higher quality. The validation of the methodology was made through experimentation which consisted in fusing both, external and internal characteristics in the input vector to the ANN for an overall quality classification. Results using internal data as obtained from an infrared camera and fused with optical external parameters demonstrated the feasibility of the method since the prediction accuracy increased during potato grading.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ju\'{a}rez-Maldonado2017,

title = {Macro-nutrient uptake dynamics in greenhouse tomato crop},

author = {Ju\'{a}rez-Maldonado, A. and De-alba-Romenus, K. and Morales-Diaz, America B. and Benavides- Mendoza, A.},

editor = {TAYLOR \& FRANCIS INC},

url = {http://www.tandfonline.com/doi/abs/10.1080/01904167.2016.1270310},

doi = {http://dx.doi.org/10.1080/01904167.2016.1270310},

issn = {0190-4167},

year  = {2017},

date = {2017-06-12},

journal = {Journal of Plant Nutrition},

volume = {40},

number = {23},

pages = {1908-1919},

abstract = {This study verified the concentration over time of nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur (N, P, K, Ca, Mg, and S) in the leaves, stems, fruits, and roots of tomato plants. An indeterminate growth variety with ball-type fruits suited for greenhouse cultivation was used. The results showed that the distribution of minerals in the different organs of the plant varies over time. The minerals N, P, and K showed a tendency to decrease their concentration, while the concentration of Ca and S increased and that of Mg remained constant over time. The leaves had the highest concentrations of N, P, K, Ca, and Mg. The concentrations of K, for both leaf and stem, ranged between 20 and 30 g kg¡1. N and K were the most extracted minerals, while P was the least extracted mineral. The information presented in this paper allows a better fertilization plan for growing tomatoes inside greenhouses.

},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7454708,

title = {Hierarchical Task-Based Control of Multirobot Systems With Terminal Attractors},

author = {Arechavaleta, Gustavo and Morales-Diaz, America B. and Perez-Villeda, Hector Manuel and Castelan, Mario },

url = {http://ieeexplore.ieee.org/abstract/document/7454708/},

doi = {10.1109/TCST.2016.2549279},

issn = {1063-6536},

year  = {2017},

date = {2017-01-01},

journal = {IEEE Transactions on Control Systems Technology},

volume = {25},

number = {1},

pages = {334 - 341},

abstract = {This brief proposes a hierarchical control scheme based on the definition of a set of multirobot task functions. To deal with the inherent conflicts between tasks, a strict hierarchy is imposed on them. We present a novel scheme that copes with two main difficulties shared in standard task-based controllers: 1) to impose a desired time convergence of tasks and 2) to avoid discontinuous task transitions occurred when a task is inserted or removed in the hierarchical structure. As a result, continuous input references are generated for the low-level control of the group. The validation is achieved in simulation and by performing an experiment with wheeled mobile robots.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{treesatayapun2017varying,

title = {Varying-sliding condition adaptive controller for a class of unknown discrete-time systems with data-driven model},

author = {Treesatayapun, Chidentree},

year  = {2017},

date = {2017-01-01},

journal = {International Journal of Modelling, Identification and Control},

volume = {27},

number = {3},

pages = {210--218},

publisher = {Inderscience Publishers (IEL)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{munoz2017fractional,

title = {Fractional integral sliding modes for robust tracking of nonlinear systems},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Parra-Vega, Vicente and Sanchez-Orta, Anand},

year  = {2017},

date = {2017-01-01},

journal = {Nonlinear Dynamics},

volume = {87},

number = {2},

pages = {895--901},

publisher = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{munoz2017fractionalb,

title = {Fractional sliding mode control of underwater ROVs subject to non-differentiable disturbances},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Ramirez-Rodriguez, Heriberto and Parra-Vega, Vicente and Sanchez-Orta, Anand},

year  = {2017},

date = {2017-01-01},

journal = {International Journal of Control, Automation and Systems},

pages = {1--8},

publisher = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{carreon2017development,

title = {Development of a model-free force controller for soft contact of an ultrasonic test probe},

author = {Carreon, Augusto and Baltazar, Arturo and Treesatayapun, Chidentree},

year  = {2017},

date = {2017-01-01},

journal = {The International Journal of Advanced Manufacturing Technology},

volume = {90},

number = {9-12},

pages = {2839--2847},

publisher = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{morales2017application,

title = {Application of nanoelements in plant nutrition and its impact in ecosystems},

author = {Morales-Diaz, America B. and Ortega-Ortiz, Hortensia and Juarez-Maldonado, Antonio and Cadenas-Pliego, Gregorio and Gonzalez-Morales, Susana and Benavides-Mendoza, Adalberto},

year  = {2017},

date = {2017-01-01},

journal = {Advances in Natural Sciences: Nanoscience and Nanotechnology},

volume = {8},

number = {1},

pages = {013001},

publisher = {IOP Publishing},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ASJC:ASJC1370,

title = {Continuous Fractional-Order Sliding PI Control for Nonlinear Systems Subject to Non-Differentiable Disturbances},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Parra-Vega, Vicente and Sanchez-Orta, Anand},

url = {http://dx.doi.org/10.1002/asjc.1370},

doi = {10.1002/asjc.1370},

issn = {1934-6093},

year  = {2017},

date = {2017-01-01},

journal = {Asian Journal of Control},

volume = {19},

number = {1},

pages = {279--288},

note = {asjc.1370},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Oliva-Palomo2016,

title = {Position Estimation Improvement Using and Observer Based on Attractive Ellipsoid Method for a Quadrotor},

author = {Oliva-Palomo, F. and Sanchez-Orta, Anand and Alazki, Hussain},

year  = {2016},

date = {2016-07-15},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Garc\'{i}a-Rodriguez2016b,

title = {Dynamic optimal grasping of a circular object with gravity using robotic softfingertips},

author = {R. Garc\'{i}a-Rodriguez and V. Segovia-Palacios and Parra-Vega, Vicente and M. Villalva-Lucio},

year  = {2016},

date = {2016-06-06},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{P\'{e}rez-Alcocer2016,

title = {Vision-based Autonomous Underwater Vehicle Navigation in Poor Visibility Conditions using a Model-free Robust Control},

author = {Perez-Alcocer, R. R. and Torres-Mendez, Luz Abril and Olguin-Diaz, Ernesto and Maldonado-Ramirez, Alejandro },

year  = {2016},

date = {2016-06-06},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Mart\'{i}nez-Gonz\'{a}lez2016b,

title = {Vision Based Persistent Localization of a Humanoid Robot for Locomotion Tasks},

author = {Mart\'{i}nez-Gonz\'{a}lez, Pablo Arturo and Castelan, Mario and Arechavaleta, Gustavo},

year  = {2016},

date = {2016-06-06},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ruelas-Santoyo2016,

title = {Neuro-Fuzzy System Applied to Recognize and Assessing the Damage In Carbon Steel Supported by Descriptive},

author = {Ruelas-Santoyo, E. and Vazquez-Lopez, J. A. and Y\'{a}\~{n}ez-Mendiola, J. and Lopez-Juarez, Ismael and Bravo-Barrera, C. F.},

year  = {2016},

date = {2016-06-06},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Treesatayapun2016,

title = {Estimated plant's sensitivity based on data-driving observer for a class of nonlinear discrete-time control systems},

author = {Treesatayapun, Chidentree},

year  = {2016},

date = {2016-06-06},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Treesatayapun2016b,

title = {Stabilized adaptive controller based on direct IF-THEN knowledge of electronic systems for PWM},

author = {Treesatayapun, Chidentree},

year  = {2016},

date = {2016-06-06},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Hernandez-Rodriguez2016,

title = {A photometric sampling method for facial shape recovery},

author = {Hernandez-Rodriguez, Felipe and Castelan, Mario },

url = {http://link.springer.com/article/10.1007%2Fs00138-016-0755-9},

year  = {2016},

date = {2016-04-01},

journal = {Machine Vision and Applications},

volume = {27},

number = {4},

pages = {483-497},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Mart\`{i}nez-Gonz\'{a}lez2016,

title = {Vision based persistent localization of a humanoid robot for locomotion Tasks},

author = {Martinez-Gonzalez, Pablo and Castelan, Mario and Arechavaleta, Gustavo },

url = {https://drive.google.com/file/d/0B-7dVUdTjeJUNGdXd0N6UWRvdk0/view},

year  = {2016},

date = {2016-03-26},

journal = {International Journal of Applied Mathematics and Computer Science},

volume = {26},

number = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7437237,

title = {Dense Correspondence using Local Regions with Affine Transformations},

author = {Reyes, Alfredo and Lopez-Juarez, Ismael},

doi = {10.1109/TLA.2016.7437237},

issn = {1548-0992},

year  = {2016},

date = {2016-02-01},

journal = {IEEE Latin America Transactions},

volume = {14},

number = {2},

pages = {893-898},

abstract = {The development of a virtual environments is desirable in many engineering applications for several reasons. For example, it can reduce the number of dangerous operations during the virtual inspection of mines, pipes for gas, water and sewer to inspect its current condition and identify possible failures. The proposal in this paper is an alternative solution to this problem obtaining a virtual image through the reconstruction of the inner pipe for assessment and fault detection. The proposed method employs regions with affine transformations used as dense correspondence, which are calculated through local correspondences, such as the detector/descriptor SIFT (Scale-invariant feature transform). The SIFT is required to obtain the position and orientation of the camera in the captured positions to get the structure of the scene through correspondences and to create a 3D reconstruction.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Delfin2016,

title = {Visual Servo Walking Control for Humanoids with Finite-time Convergence and Smooth Robot Velocities},

author = {Delfin, Josafat and Becerra, Hector M and Arechavaleta, Gustavo },

url = {http://www.tandfonline.com/doi/abs/10.1080/00207179.2015.1129558},

doi = {http://dx.doi.org/10.1080/00207179.2015.1129558},

issn = {1366-5820},

year  = {2016},

date = {2016-01-10},

journal = {International Journal of Control},

volume = {89},

number = {7},

pages = {1342-1358},

abstract = {In this paper, we address the problem of humanoid locomotion guided from information of a monocular camera. The goal of the robot is to reach a desired location defined in terms of a target image, i.e., a positioning task. The proposed approach allows us to introduce a desired time to complete the positioning task, which is advantageous in contrast to the classical exponential convergence. In particular, finite-time convergence is achieved while generating smooth robot velocities and considering the omnidirectional waking capability of the robot. In addition, we propose a hierarchical task-based control scheme, which can simultaneously handle the visual positioning and the obstacle avoidance tasks without affecting the desired time of convergence. The controller is able to activate or inactivate the obstacle avoidance task without generating discontinuous velocity references while the humanoid is walking. Stability of the closed loop for the two task-based control is demonstrated theoretically even during the transitions between the tasks. The proposed approach is generic in the sense that different visual control schemes are supported. We evaluate a homography-based visual servoing for position-based and image-based modalities, as well as for eye-in-hand and eye-to-hand configurations. The experimental evaluation is performed with the humanoid robot NAO.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Rios-Cabrera2016,

title = {Robotic GMAW online learning: issues and experiments},

author = {Rios-Cabrera, Reyes and Morales-Diaz, America B. and Aviles-Vi\~{n}as, Jaime F and Lopez-Juarez, Ismael },

url = {http://dx.doi.org/10.1007/s00170-016-8618-0},

doi = {10.1007/s00170-016-8618-0},

issn = {1433-3015},

year  = {2016},

date = {2016-01-01},

journal = {The International Journal of Advanced Manufacturing Technology},

volume = {87},

number = {5},

pages = {2113--2134},

abstract = {This paper presents three main contributions: (i) an experimental analysis of variables, using well-defined statistical patterns applied to the main parameters of the welding process. (ii) An on-line/off-line learning and testing method, showing that robots can acquire a useful knowledge base without human intervention to learn and reproduce bead geometries. And finally, (iii) an on-line testing analysis including penetration of the bead, that is used to train an artificial neural network (ANN). For the experiments, an optic camera was used in order to measure bead geometry (width and height). Also real-time computer vision algorithms were implemented to extract training patterns. The proposal was carried out using an industrial KUKA robot and a GMAW type machine inside a manufacturing cell. We present expermental analysis that show different issues and solutions to build an industrial adaptive system for the robotics welding process.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Aviles-Vi\~{n}as2016b,

title = {On-line learning of welding bead geometry in industrial robots},

author = {Aviles-Vi\~{n}as, Jaime F and Rios-Cabrera, Reyes and Lopez-Juarez, Ismael },

url = {http://dx.doi.org/10.1007/s00170-015-7422-6},

doi = {10.1007/s00170-015-7422-6},

issn = {1433-3015},

year  = {2016},

date = {2016-01-01},

journal = {The International Journal of Advanced Manufacturing Technology},

volume = {83},

number = {1},

pages = {217--231},

abstract = {In this paper, we propose an architecture based on an artificial neural network (ANN), to learn welding skills automatically in industrial robots. With the aid of an optic camera and a laser-based sensor, the bead geometry (width and height) is measured. We propose a real-time computer vision algorithm to extract training patterns in order to acquire knowledge to later predict specific geometries. The proposal is implemented and tested in an industrial KUKA KR16 robot and a GMAW type machine within a manufacturing cell. Several data analysis are described as well as off-line and on-line training, learning strategies, and testing experimentation. It is demonstrated during our experiments that, after learning the skill, the robot is able to produce the requested bead geometry even without any knowledge about the welding parameters such as arc voltage and current. We implemented an on-line learning test, where the whole experiments and learning process take only about 4 min. Using this knowledge later, we obtained up to 95 % accuracy in prediction.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{maldonado2016robotic,

title = {Robotic Visual Tracking of Relevant Cues in Underwater Environments with Poor Visibility Conditions},

author = {Maldonado-Ramirez, Alejandro and Torres-Mendez, Luz Abril},

url = {https://www.hindawi.com/journals/js/2016/4265042/},

year  = {2016},

date = {2016-01-01},

journal = {Journal of Sensors},

volume = {2016},

publisher = {Hindawi Publishing Corporation},

abstract = {Using visual sensors for detecting regions of interest in underwater environments is fundamental for many robotic applications. Particularly, for an autonomous exploration task, an underwater vehicle must be guided towards features that are of interest. If the relevant features can be seen from the distance, then smooth control movements of the vehicle are feasible in order to position itself close enough with the final goal of gathering visual quality images. However, it is a challenging task for a robotic system to achieve stable tracking of the same regions since marine environments are unstructured and highly dynamic and usually have poor visibility. In this paper, a framework that robustly detects and tracks regions of interest in real time is presented. We use the chromatic channels of a perceptual uniform color space to detect relevant regions and adapt a visual attention scheme to underwater scenes. For the tracking, we associate with each relevant point superpixel descriptors which are invariant to changes in illumination and shape. The field experiment results have demonstrated that our approach is robust when tested on different visibility conditions and depths in underwater explorations.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{S\'{a}nchezEscobedo2016111,

title = {Statistical 3D face shape estimation from occluding contours},

author = {S\'{a}nchez-Escobedo, Dalila and Castelan, Mario and Smith, William A P},

url = {http://www.sciencedirect.com/science/article/pii/S1077314215001885},

doi = {http://dx.doi.org/10.1016/j.cviu.2015.08.012},

issn = {1077-3142},

year  = {2016},

date = {2016-01-01},

journal = {Computer Vision and Image Understanding},

volume = {142},

pages = {111 - 124},

abstract = {Abstract This paper addresses the problem of 3D face shape approximation from occluding contours, i.e., the boundaries between the facial region and the background. To this end, a linear regression process that models the relationship between a set of 2D occluding contours and a set of 3D vertices is applied onto the corresponding training sets using Partial Least Squares. The result of this step is a regression matrix which is capable of estimating new 3D face point clouds from the out-of-training 2D Cartesian pixel positions of the selected contours. Our approach benefits from the highly correlated spaces spanned by the 3D vertices around the occluding boundaries of a face and their corresponding 2D pixel projections. As a result, the proposed method resembles dense surface shape recovery from missing data. Our technique is evaluated over four scenarios designed to investigate both the influence of the contours included in the training set and the considered number of contours. Qualitative and quantitative experiments demonstrate that using contours outperform the state of the art on the database used in this article. Even using a limited number of contours provides a useful approximation to the 3D face surface.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{journals/asc/VelascoDP16,

title = {Wavenet fuzzy PID controller for nonlinear MIMO systems: Experimental validation on a high-end haptic robotic interface.},

author = {Velasco Ramos, Luis Enrique and Dominguez-Ramirez, Omar Arturo and Parra-Vega, Vicente},

url = {http://dblp.uni-trier.de/db/journals/asc/asc40.html#VelascoDP16},

year  = {2016},

date = {2016-01-01},

journal = {Appl. Soft Comput.},

volume = {40},

pages = {199-205},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Izaguirre-Espinosa2016,

title = {Fractional attitude-reactive control for robust quadrotor position stabilization without resolving underactuation},

author = {Izaguirre-Espinosa, Carlos and Mu\~{n}oz-Vazquez, Aldo Jonathan and Sanchez-Orta, Anand and Parra-Vega, Vicente and G Sanahuja },

url = {http://www.sciencedirect.com/science/article/pii/S0967066116300867},

doi = {http://dx.doi.org/10.1016/j.conengprac.2016.04.016},

issn = {0967-0661},

year  = {2016},

date = {2016-01-01},

journal = {Control Engineering Practice},

volume = {53},

pages = {47 - 56},

abstract = {Quadrotors are Unmanned Aerial Systems (UAS), whose nonlinearities, uncertainties, and unavoidable aerodynamic disturbances stand for a difficult control problem. Additionally, the highly nonlinear coupling between the position and the orientation dynamics exacerbates the underactuation problem when the objective is the position tracking. In this paper, aiming at designing a robust position controller without resolving underactuation, a novel “reactive orientation control” is proposed. The orientation controller is model-free and it is build upon differintegral fractional operators to react to a continuous and bounded additive term that stands for an affine exogenous position controller. Such term indeed becomes an attitude disturbance that is purposely injected to displace the quadrotor towards the desired position of the underactuated coordinates. The closed-loop analysis shows that the norm of the transfer function between the disturbance and the position tracking error is minimized for a stable and robust position regime. Simulations and experimental results are given to discuss the feasibility of the proposed scheme.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ParraVega2016209,

title = {Neurofuzzy self-tuning of the dissipation rate gain for model-free force-position exponential tracking of robots},

author = {Parra-Vega, Vicente and Garc\'{i}a-Rodr\'{i}guez, Rodolfo and Armendariz, Jorge },

url = {http://www.sciencedirect.com/science/article/pii/S0925231215008590},

doi = {https://doi.org/10.1016/j.neucom.2015.06.034},

issn = {0925-2312},

year  = {2016},

date = {2016-01-01},

journal = {Neurocomputing},

volume = {171},

pages = {209 - 219},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1080/00207179.2015.1129558,

title = {Visual servo walking control for humanoids with finite-time convergence and smooth robot velocities},

author = {Delfin, Josafat and Becerra, Hector M and Arechavaleta, Gustavo},

url = {http://dx.doi.org/10.1080/00207179.2015.1129558},

doi = {10.1080/00207179.2015.1129558},

year  = {2016},

date = {2016-01-01},

journal = {International Journal of Control},

volume = {89},

number = {7},

pages = {1342-1358},

abstract = {ABSTRACTIn this paper, we address the problem of humanoid locomotion guided from information of a monocular camera. The goal of the robot is to reach a desired location defined in terms of a target image, i.e., a positioning task. The proposed approach allows us to introduce a desired time to complete the positioning task, which is advantageous in contrast to the classical exponential convergence. In particular, finite-time convergence is achieved while generating smooth robot velocities and considering the omnidirectional waking capability of the robot. In addition, we propose a hierarchical task-based control scheme, which can simultaneously handle the visual positioning and the obstacle avoidance tasks without affecting the desired time of convergence. The controller is able to activate or inactivate the obstacle avoidance task without generating discontinuous velocity references while the humanoid is walking. Stability of the closed loop for the two task-based control is demonstrated theoretically even during the transitions between the tasks. The proposed approach is generic in the sense that different visual control schemes are supported. We evaluate a homography-based visual servoing for position-based and image-based modalities, as well as for eye-in-hand and eye-to-hand configurations. The experimental evaluation is performed with the humanoid robot NAO.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7430073,

title = {Reconfiguration Distributed Objects in an Intelligent Manufacturing Cell},

author = {Benitez Perez, H. and Lopez-Juarez, Ismael and Garza-Alanis, P. C. and Rios-Cabrera, Reyes and Duran Chavesti, A.},

doi = {10.1109/TLA.2016.7430073},

issn = {1548-0992},

year  = {2016},

date = {2016-01-01},

journal = {IEEE Latin America Transactions},

volume = {14},

number = {1},

pages = {136-146},

abstract = {A manufacture system with the abilities of easy reconfiguration and highly scalability becomes flexible, dynamic and open to the use of software technologies. To give these abilities to a manufacture cell formed of three industrial robots and two conveyors, a middleware based on the programming standard Common Object Request Broker Architecture (CORA) was developed, thus creating a distributed manufacture cell, allowing us to have a real production with different final products. In order to optimize the production times of the different products to be manufactured, a product scheduler was developed using the algorithm Earlies Deadline First (EDF) and the support algorithm Deferrable Server (DS). Given that failures may occur on any of the specialized modules of the manufacture system, the self reconfiguration of the manufacture system is something very desirable. This article propose an algorithm to solve this problem, the algorithm identifies the failures in relation to the time it takes the system to make a product, then makes a modification on the working speed of the plant elements of the specialized modules.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Cortx00E9sPx00E9rez2016ALM,

title = {A Low-Cost Mirror-Based Active Perception System for Effective Collision Free Underwater Robotic Navigation},

author = {Cortes-Perez, Noel and Torres-Mendez, Luz Abril},

year  = {2016},

date = {2016-01-01},

journal = {2016 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)},

pages = {61-68},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{morales2016biofabricacion,

title = {Biofabricacion de nanoparticulas de metales usando celulas vegetales o extractos de plantas},

author = {Morales-Diaz, America B. and Juarez-Maldonado, Antonio and Morelos-Moreno, Alvaro and Gonzalez-Morales, Susana and Benavides-Mendoza, Adalberto},

year  = {2016},

date = {2016-01-01},

journal = {Revista Mexicana de Ciencias Agr'icolas},

volume = {7},

number = {5},

pages = {1211--1224},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{morales2016merging,

title = {Merging Strategy for Vehicles by Applying Cooperative Tracking Control},

author = {Morales-Diaz, America B. and Nijmeijer, Henk},

issn = {1524-9050},

year  = {2016},

date = {2016-01-01},

journal = {IEEE Transactions on Intelligent Transportation Systems},

volume = {17},

number = {12},

pages = {3423--3433},

publisher = {IEEE},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Izaguirre-Espinosa2016,

title = {Attitude control of quadrotors based on fractional sliding modes: theory and experiments},

author = {Izaguirre-Espinosa, Carlos and Mu\~{n}oz-Vazquez, Aldo Jonathan and Sanchez-Orta, Anand and Parra-Vega, Vicente and Castillo, Pedro},

year  = {2016},

date = {2016-01-01},

journal = {IET Control Theory \& Applications},

volume = {10},

number = {7},

pages = {825--832},

publisher = {IET},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Aldo-Jonathan2016,

title = {Uniformly continuous differintegral sliding mode control of nonlinear systems subject to H\"{o}lder disturbances},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Parra-Vega, Vicente and Sanchez-Orta, Anand},

year  = {2016},

date = {2016-01-01},

journal = {Automatica},

volume = {66},

pages = {179--184},

publisher = {Elsevier},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{treesatayapun2016adaptive,

title = {Adaptive iterative learning control based on IF--THEN rules and data-driven scheme for a class of nonlinear discrete-time systems},

author = {Treesatayapun, Chidentree},

year  = {2016},

date = {2016-01-01},

journal = {Soft Computing},

pages = {1--11},

publisher = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{treesatayapun2016discrete,

title = {Discrete-Time Adaptive Controller Based on Estimated Pseudopartial Derivative and Reaching Sliding Condition},

author = {Treesatayapun, Chidentree},

year  = {2016},

date = {2016-01-01},

journal = {Journal of Dynamic Systems, Measurement, and Control},

volume = {138},

number = {10},

pages = {101002},

publisher = {American Society of Mechanical Engineers},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7118647,

title = {Determination of Contact Evolution on a Soft Hemispherical Probe Using Ultrasound},

author = {Carreon, Augusto and Baltazar, Arturo and Kim, J.},

url = {http://ieeexplore.ieee.org/document/7118647/},

doi = {10.1109/JSEN.2015.2439293},

issn = {1530-437X},

year  = {2015},

date = {2015-09-01},

journal = {IEEE Sensors Journal},

volume = {15},

number = {9},

pages = {5303-5311},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7273810,

title = {Surveillance System Mobile Object Using Segmentation Algorithms},

author = {Osorio-Comparan, Roman and Lopez-Juarez, Ismael and Pena-Cabrera, Mario and Lomas, V. and Lefranc, G. and Savage, J.},

url = {http://ieeexplore.ieee.org/document/7273810/?reload=true\&arnumber=7273810},

doi = {10.1109/TLA.2015.7273810},

issn = {1548-0992},

year  = {2015},

date = {2015-07-01},

journal = {IEEE Latin America Transactions},

volume = {13},

number = {7},

pages = {2441-2446},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7273794,

title = {Condition Estimation Of Carbon Steel Using A Neuro-Fuzzy System And Image Processing},

author = {Ruelas-Santoyo, E. A. and Vazquez-Lopez, J. A. and Yanez-Mendiola, J. and Lopez-Juarez, Ismael and Bravo-Barrera, C. F.},

url = {http://ieeexplore.ieee.org/document/7273794/},

doi = {10.1109/TLA.2015.7273794},

issn = {1548-0992},

year  = {2015},

date = {2015-07-01},

journal = {IEEE Latin America Transactions},

volume = {13},

number = {7},

pages = {2322-2328},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Luna-Aguilar2015,

title = {Incorporaci\'{o}n de sensores ac\'{u}sticos en el control de regulaci\'{o}n a un punto de un robot m\'{o}vil},

author = {Luna-Aguilar, C. A. and Castelan, Mario and Morales-Diaz, America B. and Nadeu, C.},

url = {https://upcommons.upc.edu/handle/2117/102668},

year  = {2015},

date = {2015-06-06},

pages = {582-587},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7164216,

title = {Fuzzy Logic for Omni directional Mobile Platform Control Displacement using FPGA and Bluetooth},

author = {Pena-Cabrera, Mario and Gomez, J. A. and Osorio-Comparan, Roman and Lopez-Juarez, Ismael and Lomas, V. and Gomez, H. and Lefranc, G.},

url = {http://ieeexplore.ieee.org/document/7164216/},

doi = {10.1109/TLA.2015.7164216},

issn = {1548-0992},

year  = {2015},

date = {2015-06-01},

journal = {IEEE Latin America Transactions},

volume = {13},

number = {6},

pages = {1907-1914},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{7164220,

title = {System Administration and Monitoring Moving Objects Using Mobile Devices},

author = {Osorio-Comparan, Roman and Vasquez, D. and Lopez-Juarez, Ismael and Pena-Cabrera, Mario and Savage, J. and Lefranc, G.},

url = {http://ieeexplore.ieee.org/document/7164220/},

doi = {10.1109/TLA.2015.7164220},

issn = {1548-0992},

year  = {2015},

date = {2015-06-01},

journal = {IEEE Latin America Transactions},

volume = {13},

number = {6},

pages = {1934-1939},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1108/IR-09-2014-0395,

title = {Acquisition of welding skills in industrial robots},

author = {Aviles-Vi\~{n}as, Jaime F and Lopez-Juarez, Ismael and Rios-Cabrera, Reyes },

url = {http://dx.doi.org/10.1108/IR-09-2014-0395},

doi = {10.1108/IR-09-2014-0395},

year  = {2015},

date = {2015-01-01},

journal = {Industrial Robot: An International Journal},

volume = {42},

number = {2},

pages = {156-166},

abstract = {Purpose \textendash The purpose of this paper was to propose a method based on an Artificial Neural Network and a real-time vision algorithm, to learn welding skills in industrial robotics. Design/methodology/approach \textendash By using an optic camera to measure the bead geometry (width and height), the authors propose a real-time computer vision algorithm to extract training patterns and to enable an industrial robot to acquire and learn autonomously the welding skill. To test the approach, an industrial KUKA robot and a welding gas metal arc welding machine were used in a manufacturing cell. Findings \textendash Several data analyses are described, showing empirically that industrial robots can acquire the skill even if the specific welding parameters are unknown. Research limitations/implications \textendash The approach considers only stringer beads. Weave bead and bead penetration are not considered. Practical implications \textendash With the proposed approach, it is possible to learn specific welding parameters despite of the material, type of robot or welding machine. This is due to the fact that the feedback system produces automatic measurements that are labelled prior to the learning process. Originality/value \textendash The main contribution is that the complex learning process is reduced into an input-process-output system, where the process part is learnt automatically without human supervision, by registering the patterns with an automatically calibrated vision system.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Navarro-Gonzalez2015,

title = {On-line incremental learning for unknown conditions during assembly operations with industrial robots},

author = {Navarro-Gonzalez, Jose Luis and Lopez-Juarez, Ismael and Ordaz-Hernandez, Keny and Rios-Cabrera, Reyes },

url = {http://dx.doi.org/10.1007/s12530-014-9125-x},

doi = {10.1007/s12530-014-9125-x},

issn = {1868-6486},

year  = {2015},

date = {2015-01-01},

journal = {Evolving Systems},

volume = {6},

number = {2},

pages = {101--114},

abstract = {The assembly operation using industrial robots can be accomplished successfully in well-structured environments where the mating pair location is known in advance. However, in real-world scenarios there are uncertainties associated to sensing, control and modelling errors that make the assembly task very complex. In addition, there are also unmodeled uncertainties that have to be taken into account for an effective control algorithm to succeed. Among these uncertainties, it can be mentioned disturbances, backlash and aging of mechanisms. In this paper, a method to overcome the effect of those uncertainties based on the Fuzzy ARTMAP artificial neural network (ANN) to successfully accomplish the assembly task is proposed. Experimental work is reported using an industrial 6 DOF robot arm in conjunction with a vision system for part location and wrist force/torque sensing data for assembly. Force data is fed into an ANN evolving controller during a typical peg in hole (PIH) assembly operation. The controller uses an incremental learning mechanism that is solely guided by the sensed forces. In this article, two approaches are presented in order to compare the incremental learning capability of the manipulator. The first approach uses a primitive knowledge base (PKB) containing 16 primitive movements to learn online the first insertion. During assembly, the manipulator learns new patterns according to the learning criteria which turn the PKB into an enhanced knowledge base (EKB). During a second insertion the controller uses effectively the EKB and operation improves. The second approach employs minimum information (it contains only the assembly direction) and the process starts from scratch. After several operations, that knowledge base increases by including only the needed patterns to perform the insertion. Experimental results showed that the evolving controller is able to assemble the matting pairs enhancing its knowledge whenever it is needed depending on the part geometry and level of expertise. Our approach is demonstrated through several PIH operations with different tolerances and part geometry. As the robot's expertise evolves, the PIH operation is carried out faster with shorter assembly trajectories.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{NavarroGonzalez201578b,

title = {On-line knowledge acquisition and enhancement in robotic assembly tasks},

author = {Navarro-Gonzalez, Jose Luis and Lopez-Juarez, Ismael and Rios-Cabrera, Reyes and Ordaz-Hernandez, Keny},

url = {http://www.sciencedirect.com/science/article/pii/S073658451400074X},

doi = {http://dx.doi.org/10.1016/j.rcim.2014.08.013},

issn = {0736-5845},

year  = {2015},

date = {2015-01-01},

journal = {Robotics and Computer-Integrated Manufacturing},

volume = {33},

pages = {78 - 89},

abstract = {Abstract Industrial robots are reliable machines for manufacturing tasks such as welding, panting, assembly, palletizing or kitting operations. They are traditionally programmed by an operator using a teach pendant in a point-to-point scheme with limited sensing capabilities such as industrial vision systems and force/torque sensing. The use of these sensing capabilities is associated to the particular robot controller, operative systems and programming language. Today, robots can react to environment changes specific to their task domain but are still unable to learn skills to effectively use their current knowledge. The need for such a skill in unstructured environments where knowledge can be acquired and enhanced is desirable so that robots can effectively interact in multimodal real-world scenarios. In this article we present a multimodal assembly controller (MAC) approach to embed and effectively enhance knowledge into industrial robots working in multimodal manufacturing scenarios such as assembly during kitting operations with varying shapes and tolerances. During learning, the robot uses its vision and force capabilities resembling a human operator carrying out the same operation. The approach consists of using a MAC based on the Fuzzy ARTMAP artificial neural network in conjunction with a knowledge base. The robot starts the operation having limited initial knowledge about what task it has to accomplish. During the operation, the robot learns the skill for recognising assembly parts and how to assemble them. The skill acquisition is evaluated by counting the steps to complete the assembly, length of the followed assembly path and compliant behaviour. The performance improves with time so that the robot becomes an expert demonstrated by the assembly of a kit with different part geometries. The kit is unknown by the robot at the beginning of the operation; therefore, the kit type, location and orientation are unknown as well as the parts to be assembled since they are randomly fed by a conveyor belt.},

note = {Special Issue on Knowledge Driven Robotics and Manufacturing},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Castelan2015,

title = {A Photometric Sampling Strategy for Reflectance Characterization and Transference},

author = {Castelan, Mario and Cruz-Perez, Elier and Torres-Mendez, Luz Abril},

url = {http://www.cys.cic.ipn.mx/ojs/index.php/CyS/article/view/1944},

year  = {2015},

date = {2015-01-01},

journal = {Computaci\'{o}n y Sistemas},

volume = {19},

number = {2},

pages = {255-272},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{RAYGOSABARAHONA2015313,

title = {Control Libre de Modelo basado en Modos Deslizantes Integrales para Robots Submarinos Subactuados1},

author = {Raygoza-Barahona, Ruben and Olguin-Diaz, Ernesto and Parra-Vega, Vicente and Mu\~{n}oz-Ubando, L. A.},

url = {http://www.sciencedirect.com/science/article/pii/S1697791215000321},

doi = {http://dx.doi.org/10.1016/j.riai.2015.04.004},

issn = {1697-7912},

year  = {2015},

date = {2015-01-01},

journal = {Revista Iberoamericana de Automatica e Informatica Industrial RIAI},

volume = {12},

number = {3},

pages = {313 - 324},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{SANCHEZFRAIRE2015154b,

title = {On the Brain Computer Robot Interface (BCRI) to Control Robots},

author = {Sanchez-Fraire, U. and Parra-Vega, Vicente and Martinez-Peon, D. and Sepulveda-Cervantes, G. and Sanchez-Orta, Anand and Mu\~{n}oz-Vazquez, Aldo Jonathan},

url = {http://www.sciencedirect.com/science/article/pii/S2405896315026506},

doi = {http://dx.doi.org/10.1016/j.ifacol.2015.12.026},

issn = {2405-8963},

year  = {2015},

date = {2015-01-01},

journal = {IFAC-PapersOnLine},

volume = {48},

number = {19},

pages = {154 - 159},

note = {11th IFAC Symposium on Robot Control SYROCO 2015},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{GARCIARODRIGUEZ2015220,

title = {Dexterous Dynamic Optimal Grasping of a Circular Object subject to Gravity with Soft-fingertips},

author = {Garci­a-Rodri­guez, R. and Villalva-Lucio, M. and Parra-Vega, Vicente},

url = {http://www.sciencedirect.com/science/article/pii/S2405896315026610},

doi = {http://dx.doi.org/10.1016/j.ifacol.2015.12.037},

issn = {2405-8963},

year  = {2015},

date = {2015-01-01},

journal = {IFAC-PapersOnLine},

volume = {48},

number = {19},

pages = {220 - 225},

note = {11th IFAC Symposium on Robot Control SYROCO 2015},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{MUNOZVAZQUEZ2015118,

title = {Control of Constrained Robot Manipulators based on Fractional Order Error Manifolds},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Parra-Vega, Vicente and Sanchez-Orta, Anand},

url = {http://www.sciencedirect.com/science/article/pii/S2405896315026440},

doi = {http://dx.doi.org/10.1016/j.ifacol.2015.12.020},

issn = {2405-8963},

year  = {2015},

date = {2015-01-01},

journal = {IFAC-PapersOnLine},

volume = {48},

number = {19},

pages = {118 - 123},

note = {11th IFAC Symposium on Robot Control SYROCO 2015},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{delosAngelesHernandez2015,

title = {A hybrid learning method composed by the orthogonal least-squares and the back-propagation learning algorithms for interval A2-C1 type-1 non-singleton type-2 TSK fuzzy logic systems},

author = {de los Angeles Hernandez, Maria and Melin, Patricia and Mendez, Gerardo M. and Castillo, Oscar and Lopez-Juarez, Ismael},

url = {http://dx.doi.org/10.1007/s00500-014-1287-8},

doi = {10.1007/s00500-014-1287-8},

issn = {1433-7479},

year  = {2015},

date = {2015-01-01},

journal = {Soft Computing},

volume = {19},

number = {3},

pages = {661--678},

abstract = {The purpose of this paper is to present a hybrid learning method for interval A2-C1 type-1 non-singleton type-2 TSK fuzzy logic system that uses the recursive orthogonal least-squares algorithm to tune the type-1 consequent parameters, and the back-propagation algorithm to tune the interval type-2 antecedent parameters. Based on the combination of these two training algorithms the new hybrid learning method changes the interval type-2 fuzzy model parameters adaptively and minimizes the proposed error function as the new type-1 non-singleton input--output data pairs are processed. Its antecedent sets are interval type-2 fuzzy sets, its consequent sets are type-1 fuzzy sets, and its inputs are type-1 non-singleton fuzzy numbers with uncertain standard deviations. Comparison with the non-hybrid interval A2-C1 type-1 non-singleton type-2 Takagi--Sugeno--Kang fuzzy logic system that only uses the back-propagation algorithm for both antecedent and consequent parameter's adaptation demonstrates that the proposed hybrid algorithm is a well-performing nonlinear adaptation that enables the interval type-2 fuzzy model to optimally match the nonlinear behavior of the process. The application of the interval type-2 fuzzy logic as adaptable predictor using the proposed hybrid learning method was constructed for the modeling and prediction of the transfer bar surface temperature in an industrial hot strip mill facility. Experimental results demonstrated that this method improves the temperature prediction performance of the interval A2-C1 type-1 non-singleton type-2 Takagi--Sugeno--Kang fuzzy logic system.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Treesatayapun:2015:DIA:2729770.2729786,

title = {Data Input-output Adaptive Controller Based on IF-THEN Rules for a Class of Non-affine Discrete-time Systems: The Robotic Plant},

author = {Treesatayapun, Chidentree},

url = {http://dx.doi.org/10.3233/IFS-141347},

doi = {10.3233/IFS-141347},

issn = {1064-1246},

year  = {2015},

date = {2015-01-01},

journal = {J. Intell. Fuzzy Syst.},

volume = {28},

number = {2},

pages = {661--668},

publisher = {IOS Press},

address = {Amsterdam, The Netherlands, The Netherlands},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Treesatayapun2015,

title = {A data-driven adaptive controller for a class of unknown nonlinear discrete-time systems with estimated PPD},

author = {Treesatayapun, Chidentree},

url = {http://www.sciencedirect.com/science/article/pii/S2215098615000051},

doi = {http://dx.doi.org/10.1016/j.jestch.2014.12.004},

issn = {2215-0986},

year  = {2015},

date = {2015-01-01},

journal = {Engineering Science and Technology, an International Journal},

volume = {18},

number = {2},

pages = {218 - 228},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{0964-1726-24-7-075008,

title = {Damage detection using the signal entropy of an ultrasonic sensor network},

author = {Rojas, Erick and Baltazar, Arturo and Loh, K.},

url = {http://stacks.iop.org/0964-1726/24/i=7/a=075008},

year  = {2015},

date = {2015-01-01},

journal = {Smart Materials and Structures},

volume = {24},

number = {7},

pages = {075008},

abstract = {Piezoelectric ultrasonic sensors used to propagate guided waves can potentially be implemented to inspect large areas in engineering structures. However, the inherent dispersion and noise of guided acoustic signals, multiple echoes in the structure, as well as a lack of an approximate or exact model, limit their use as a continuous structural health monitoring system. In this work, the implementation of a network of piezoelectric sensors randomly placed on a plate-like structure to detect and locate artificial damage is studied. A network of macro fiber composite (MFC) sensors working in a pitch\^{a}€“catch configuration was set on an aluminum thin plate 1.9 mm in thickness. Signals were analyzed in the time-scale domain using the discrete wavelet transform. The objectives of this work were threefold, namely to first develop a damage index based on the entropy distribution using short time wavelet entropy of the ultrasonic waves generated by a sensor network, second to determine the performance of an array of spare MFC sensors to detect artificial damage, and third to implement a time-of-arrival (TOA) algorithm on the gathered signals for damage location of an artificial circular discontinuity. Our preliminary test results show that the proposed methodology provides sufficient information for damage detection, which, once combined with the TOA algorithm, allows localization of the damage.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Mu\~{n}oz-V\'{a}zquez2015,

title = {Continuous fractional sliding mode-like control for exact rejection of non-differentiable H\"{o}lder disturbances},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Parra-Vega, Vicente and S\'{a}nchez-Orta, Anand},

url = {https://academic.oup.com/imamci/article/34/2/597/2885232/Continuous-fractional-sliding-mode-like-control},

doi = {https://doi.org/10.1093/imamci/dnv064},

issn = {0265-0754},

year  = {2015},

date = {2015-00-00},

journal = {IMA Journal of Mathematic al Control and Information},

volume = {34},

abstract = {Exploiting algebraic and topological properties of differintegral operators as well as a proposed principle of dynamic memory resetting, a uniform continuous sliding mode controller for a general class of integer order affine non-linear systems is proposed. The controller rejects a wide class of disturbances, enforcing in finite-time a sliding regime without chattering. Such disturbance is of H\"{o}lder type that is not necessarily differentiable in the usual (integer order) sense. The control signal is uniformly continuous in contrast to the classical (integer order) discontinuous scheme that has been proposed for both fractional and integer order systems. The proposed principle of dynamic memory resetting allows demonstrating robustness as well as: (i) finite-time convergence of the sliding manifold, (ii) asymptotic convergence of tracking errors, and (iii) exact disturbance observation. The validity of the proposed scheme is discussed in a representative numerical study.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Chinas2015,

title = {SVM and ANN Application to Multivariate Pattern Recognition Using Scatter Data},

author = {Chi\~{n}as-Sanchez, Pamela and Lopez-Juarez, Ismael and Vazquez, J. A. and Osorio-Comparan, Roman and Lefranc, Gaston},

url = {https://www.researchgate.net/publication/277145967_SVM_and_ANN_Application_to_Multivariate_Pattern_Recognition_Using_Scatter_Data},

doi = { 10.1109/TLA.2015.7112025},

issn = {1548-0992},

year  = {2015},

date = {2015-00-00},

journal = {IEEE Latin America Transactions},

volume = {13},

number = {5},

pages = {1633-2639},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Iba\~{n}ez2015,

title = {Detection of damage in multiwire cables based on wavelet entropy evolution},

author = {Iba\~{n}ez, Flor and Baltazar, Arturo and Mijarez, Rito},

url = {http://iopscience.iop.org/article/10.1088/0964-1726/24/8/085036},

doi = { http://dx.doi.org/10.1063/1.4914760},

year  = {2015},

date = {2015-00-00},

journal = {Smart Materials and Structures 2},

volume = {24},

number = {8},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Guti\'{e}rrez2015,

title = {Synchronization control for a swarm of unicycle robots: analysis of different controller topologies},

author = {Gutierrez-Flores, Hugo and Morales-Diaz, America B. and Nijmeijer, H. 

},

url = {http://onlinelibrary.wiley.com/doi/10.1002/asjc.1497/full},

doi = {10.1002/asjc.1497},

issn = {1934-6093},

year  = {2015},

date = {2015-00-00},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Narv\'{a}ez-Ortiz2015,

title = {Din\'{a}mica de la composici\'{o}n de la soluci\'{o}n del suelo en cultivos del occidente de M\'{e}xico},

author = {Narv\'{a}ez-Ortiz, William Alfredo and Morales-Diaz, America B. and Benavides-Mendoza, Adalberto and Reyes-Vald\'{e}s, Manuel Humberto},

url = {http://www.redalyc.org/pdf/2631/263143809011.pdf},

issn = { 2007-0934},

year  = {2015},

date = {2015-00-00},

journal = {Revista Mexicana de Ciencias Agr\'{i}cola},

number = {12},

pages = {2383-2397},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Morales-Diaz2015,

title = {Analysis and control of a distributed parameter reactor for pyrolysis of wood},

author = {Morales-Diaz, America B. and Vazquez-Sandoval, A. D. and Carlos-Hernandez, S.},

url = {http://www.scielo.org.mx/scielo.php?pid=S1665-27382015000200029\&script=sci_abstract\&tlng=pt},

issn = {1665-2738},

year  = {2015},

date = {2015-00-00},

journal = {Revista Mexicana de Ingenier\'{i}a Qu\'{i}mica},

volume = {14},

number = {2},

pages = {543-552},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Sanchez-Orta2014,

title = {Position\textendashYaw Tracking of Quadrotors},

author = {Sanchez-Orta, Anand and Parra-Vega, Vicente and Izaguirre-Espinosa, Carlos and Garcia, Octavio},

url = {http://dynamicsystems.asmedigitalcollection.asme.org/article.aspx?articleid=2088643#Abstract},

doi = {10.1115/1.4029464},

issn = {002-0434},

year  = {2014},

date = {2014-12-19},

issuetitle = {Position-Yaw Tracking of Quadrotors},

journal = {Journal of Dynamic Systems, Measurement},

volume = {137},

abstract = {A yaw angle, different from zero, introduces highly nonlinear couplings in the rotational and translational quadrotor dynamics, implying undesirable motions. This argument has motivated that the position control problem of quadrotors is studied generally regulating yaw at zero. However, zeroing yaw limits the maneuverability of underactuated quadrotors because yaw is one of the four actuated motions. In this paper, the simultaneous tracking of position and time-varying heading is proposed, based on an integral sliding mode control with a quaternion-based sliding surface. An exponential tracking with chattering-free is obtained without requiring any knowledge of the dynamic model or its parameters for implementation. Since a linear invariant orientation error manifold is enforced for all time, a time-varying gain is introduced for a well-posed finite time convergence, which is useful not only to realize the virtual position control scheme, due to underactuation, but also to guarantee a desired contact in a given point at a given desired contact time for the yaw motion. Illustrative applications are explored in a simulation study which shows the viability and versatility of position\textendashyaw tracking in the surveillance of a field-of-view (FoV) target, aerial screw driver, and aerial grasping.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{6750735,

title = {How Tactor Size and Density of Normal Indentation Tactile Displays Affects Grating Discrimination Tasks},

author = {Garcia-Hernandez, Nadia and Bertolotto, F. and Cannella, F. and Tsagarakis, N. G. and Caldwell, D. G.},

url = {http://ieeexplore.ieee.org/document/6750735/?reload=true\&arnumber=6750735},

doi = {10.1109/TOH.2014.2309128},

issn = {1939-1412},

year  = {2014},

date = {2014-07-01},

journal = {IEEE Transactions on Haptics},

volume = {7},

number = {3},

pages = {356-366},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1108/IJIUS-04-2014-0003,

title = {Multi-legged robot dynamics navigation model with optical flow},

author = {Martinez-Garcia, Edgar A. and Torres-Mendez, Luz Abril and Elara Mohan, Rajesh },

url = {http://dx.doi.org/10.1108/IJIUS-04-2014-0003},

doi = {10.1108/IJIUS-04-2014-0003},

year  = {2014},

date = {2014-01-01},

journal = {International Journal of Intelligent Unmanned Systems},

volume = {2},

number = {2},

pages = {121-139},

abstract = {Purpose \textendash The purpose of this paper is to establish analytical and numerical solutions of a navigational law to estimate displacements of hyper-static multi-legged mobile robots, which combines: monocular vision (optical flow of regional invariants) and legs dynamics. Design/methodology/approach \textendash In this study the authors propose a Euler-Lagrange equation that control legs’ joints to control robot's displacements. Robot's rotation and translational velocities are feedback by motion features of visual invariant descriptors. A general analytical solution of a derivative navigation law is proposed for hyper-static robots. The feedback is formulated with the local speed rate obtained from optical flow of visual regional invariants. The proposed formulation includes a data association algorithm aimed to correlate visual invariant descriptors detected in sequential images through monocular vision. The navigation law is constrained by a set of three kinematic equilibrium conditions for navigational scenarios: constant acceleration, constant velocity, and instantaneous acceleration. Findings \textendash The proposed data association method concerns local motions of multiple invariants (enhanced MSER) by minimizing the norm of multidimensional optical flow feature vectors. Kinematic measurements are used as observable arguments in the general dynamic control equation; while the legs joints dynamics model is used to formulate the controllable arguments. Originality/value \textendash The given analysis does not combine sensor data of any kind, but only monocular passive vision. The approach automatically detects environmental invariant descriptors with an enhanced version of the MSER method. Only optical flow vectors and robot's multi-leg dynamics are used to formulate descriptive rotational and translational motions for self-positioning.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ramirez-Rodriguez2014,

title = {Robust Backstepping Control Based on Integral Sliding Modes for Tracking of Quadrotors},

author = {Ramirez-Rodriguez, Heriberto and Parra-Vega, Vicente and Sanchez-Orta, Anand and Garcia-Salazar, Octavio },

url = {http://dx.doi.org/10.1007/s10846-013-9909-4},

doi = {10.1007/s10846-013-9909-4},

issn = {1573-0409},

year  = {2014},

date = {2014-01-01},

journal = {Journal of Intelligent \& Robotic Systems},

volume = {73},

number = {1},

pages = {51--66},

abstract = {Modern non-inertial robots are usually underactuated, such as fix or rotary wing Unmanned Aerial Vehicles (UAVs), underwater or nautical robots, to name a few. Those systems are subject to complex aerodynamic or hydrodynamic forces which make the dynamic model more difficult, and typically are subject to bounded smooth time-varying disturbances. In these systems, it is preferred a formal control approach whose closed-loop system can predict an acceptable performance since deviations may produce instability and may lead to catastrophic results. Backstepping provides an intuitive solution since it solves underactuation iteratively through slaving the actuated subsystem so as to provide a virtual controller in order to stabilize the underactuated subsystem. However it requires a full knowledge of the plant and derivatives of the state, which it is prone to instability for any uncertainty; and although robust sliding mode has been proposed, discontinuities may be harmful for air- or water-borne nonlinear plants. In this paper, a novel robust backstepping-based controller that induces integral sliding modes is proposed for the Newton--Euler underactuated dynamic model of a quadrotor subject to smooth bounded disturbances, including wind gust and sideslip aerodynamics, as well as dissipative drag in position and orientation dynamics. The chattering-free sliding mode compensates for persistent or intermittent, and possible unmatched state dependant disturbances with reduced information of the dynamic model. Representative simulations are presented and discussed.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Armendariz:2014:NSP:2842034.2842100,

title = {Neuro-fuzzy Self-tuning of PID Control for Semiglobal Exponential Tracking of Robot Arms},

author = { Armendariz, Jorge and Parra-Vega, Vicente and Garcia-Rodriguez, Rodolfo and Rosales, Sergio },

url = {http://dx.doi.org/10.1016/j.asoc.2014.08.037},

doi = {10.1016/j.asoc.2014.08.037},

issn = {1568-4946},

year  = {2014},

date = {2014-01-01},

journal = {Appl. Soft Comput.},

volume = {25},

number = {C},

pages = {139--148},

publisher = {Elsevier Science Publishers B. V.},

address = {Amsterdam, The Netherlands, The Netherlands},

abstract = {Abstract

The PID controller with constant feedback gains has withstood as the preferred choice for control of linear plants or linearized plants, and under certain conditions for non-linear ones, where the control of robotic arms excels. In this paper a model-free self-tuning PID controller is proposed for tracking tasks. The key idea is to exploit the passivity-based formulation for robotic arms in order to shape the damping injection to enforce dissipativity and to guarantee semiglobal exponential convergence in the sense of Lyapunov. It is shown that a neuro-fuzzy network can be used to tune dissipation rate gain through a self-tuning policy of a single gain. Experimental studies are presented to confirm the viability of the proposed approach.



Graphical abstract},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Munoz-Vazquez2014,

title = {A Passive Velocity Field Control for Navigation of Quadrotors with Model-free Integral Sliding Modes},

author = {Mu\~{n}oz-Vazquez, Aldo Jonathan and Parra-Vega, Vicente and Sanchez-Orta, Anand},

url = {http://dx.doi.org/10.1007/s10846-013-9892-9},

doi = {10.1007/s10846-013-9892-9},

issn = {1573-0409},

year  = {2014},

date = {2014-01-01},

journal = {Journal of Intelligent \& Robotic Systems},

volume = {73},

number = {1},

pages = {373--385},

abstract = {Velocity field (VF) control has proved effective for kinematic robots, aiming essentially at providing desired velocities for navigation along the field, and for obstacle avoidance in cluttered environments. When robot dynamics are involved, it is usually considered either that dynamics are known and that robot is fully actuated, thus it is not clear how to deal with VF control (VFC) for unknown underactuated dynamics, such as for a quadrotor. Moreover, passive VF (PVF) stands for an attractive methodology for quadrotors because of it yields time-invariant nominal spatial field for smooth approaching and easy manoeuvring. In this paper, we propose a constructive method to design a PVF-based controller with a chattering-free integral sliding modes for local exponential position tracking. The salient feature of our proposal is the passive nature of the field as well as the controller is model-free for the complete standard quasi-Lagrangian dynamic model of the quadrotor. The controller does not require the derivative nor any assumption on boundedness on the integral of the VF, yet the closed-loop withstands robustness against parametric and model uncertainties. Simulations are discussed, and remarks address the viability of the proposed approach.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Rios-Cabrera:2014:BMD:2583127.2583285,

title = {Boosting Masked Dominant Orientation Templates for Efficient Object Detection},

author = {Rios-Cabrera, Reyes and Tuytelaars, Tinne},

url = {http://dx.doi.org/10.1016/j.cviu.2013.12.008},

doi = {10.1016/j.cviu.2013.12.008},

issn = {1077-3142},

year  = {2014},

date = {2014-01-01},

journal = {Comput. Vis. Image Underst.},

volume = {120},

pages = {103--116},

publisher = {Elsevier Science Inc.},

address = {New York, NY, USA},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{PAMELA2014125,

title = {Reconocimiento de variables multivariantes empleando el estadistico T2 Hotelling y MEWMA mediante las RNA’s},

author = {Chi\~{n}as-Sanchez, Pamela and Lopez-Juarez, Ismael and Vazquez-Lopez, J. A.},

url = {http://www.sciencedirect.com/science/article/pii/S1405774315300111},

doi = {http://dx.doi.org/10.1016/S1405-7743(15)30011-1},

issn = {1405-7743},

year  = {2014},

date = {2014-01-01},

journal = {Ingeniera, Investigacion y Tecnologia},

volume = {15},

number = {1},

pages = {125 - 138},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Treesatayapun2014,

title = {Balancing control energy and tracking error for fuzzy rule emulated adaptive controller},

author = {Treesatayapun, Chidentree},

url = {http://dx.doi.org/10.1007/s10489-013-0493-x},

doi = {10.1007/s10489-013-0493-x},

issn = {1573-7497},

year  = {2014},

date = {2014-01-01},

volume = {40},

number = {4},

pages = {639--648},

abstract = {In this article, an adaptive controller, which can minimize both tracking error and control energy, is introduced by fuzzy rule emulated network (FREN) for a class of non-affine discrete time systems. The controlled plant can be assumed as fully unknown system dynamic. Only the estimated boundary of pseudo partial derivative (PPD) is required for an on-line learning phase. The update law is derived to guarantee the convergence of tuned parameters. Lyapunov techniques are utilized to demonstrate the performance of a closed-loop system regarding the integration of the infinite cost function. The computer simulation and electronic circuit system validate the effectiveness of the proposed control scheme.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{TREESATAYAPUN201411b,

title = {Adaptive control based on IF-THEN rules for grasping force regulation with unknown contact mechanism},

author = {Treesatayapun, Chidentree},

url = {http://www.sciencedirect.com/science/article/pii/S0736584513000483},

doi = {http://dx.doi.org/10.1016/j.rcim.2013.07.001},

issn = {0736-5845},

year  = {2014},

date = {2014-01-01},

journal = {Robotics and Computer-Integrated Manufacturing},

volume = {30},

number = {1},

pages = {11 - 18},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Balvanti­n2014,

title = {Characterization of Laser Generated Lamb Wave Modes after Interaction with a Thickness Reduction Discontinuity Using Ray Tracing Theory},

author = {Balvantin, A. and Baltazar, Arturo and Rodriguez, P.},

url = {http://dx.doi.org/10.1007/s11340-013-9846-y},

doi = {10.1007/s11340-013-9846-y},

issn = {1741-2765},

year  = {2014},

date = {2014-01-01},

journal = {Experimental Mechanics},

volume = {54},

number = {5},

pages = {743--752},

abstract = {The effect that a circular discontinuity (due to thickness reduction) in an Aluminum plate has on the direction of Lamb wave propagation was experimentally and theoretically studied. Broadband Lamb waves were generated by a pulsed Nd:YAG laser and optically detected with a photo-EMF detector to increase spatial resolution. The experimental results show that thickness reduction modifies the time of flight (TOF) for S0 and A0 vibration modes and generates a change in direction of the ultrasonic Lamb wave. The change in the TOF as a function of distance and thickness reduction was numerically determined using ray theory and then compared to experimental results. It is shown that the change in the direction of propagation depends on the vibrational mode and frequency of the Lamb waves and this can affect the detection and characterization of a hidden discontinuity.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{9865360020141001,

title = {Estimation of the water requirements of greenhouse tomato crop using multiple regression models.},

author = {Juarez-Maldonado, Antonio and Benavides-Mendoza, Adalberto and De-Alba-Romenus, Karim and Morales-Diaz, America B.},

url = {http://access.biblioteca.cinvestav.mx/login?url=http://search.ebscohost.com/login.aspx?direct=true\&db=a9h\&AN=98653600\&lang=es\&site=eds-live},

issn = {2079052X},

year  = {2014},

date = {2014-01-01},

journal = {Emirates Journal of Food \& Agriculture (EJFA)},

volume = {26},

number = {10},

pages = {885 - 897},

abstract = {Water utilization by crops, namely tomato, within greenhouses is one of the most significant factors indetermining yield. Daily water consumption by tomato plants were calculated, to determine the actualevapotranspiration and transpiration rates, as well as the incorporation measurement of climatic variables andweekly determinations of fresh and dry weights of the plants. Estimations of daily evapotranspiration andtranspiration rates by the tomato plants were calculated using multiple regression models. The best models forestimating, both the evapotranspiration and transpiration, had adjusted R2 values greater than 0.9. Using themultiple obtained regression models it is possible to estimate the water needs of tomato plants under greenhouseconditions from readily available variables. The aim of this study was to generate regression models in order todetermine the crop water requirements of greenhouse tomato. [ABSTRACT FROM AUTHOR]},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Mijarez2014,

title = {Damage detection in ACSR cables based on ultrasonic guided waves},

author = {Mijarez, Rito and Baltazar, Arturo and Rodr\'{i}guez-Rodr\'{i}guez, Joaquin and Ram\'{i}rez-Ni\~{n}o, Jose },

url = {http://revistas.unal.edu.co/index.php/dyna/article/view/40252/53905},

doi = { https://doi.org/10.15446/dyna.v81n186.40252},

issn = {0012-7353},

year  = {2014},

date = {2014-00-00},

journal = {DYNA},

volume = {81},

number = { 186},

pages = { 226-233},

abstract = {The use of ultrasonic guided waves is growing as a non-destructive testing technique of multi-wire cables used in civil engineering structures. Wave propagation characteristics in these types of structures have been challenging to investigate owing to the load-dependent inter-wire contact and the helical geometry of the peripheral wires. In this work, experiments of guided waves propagated in a 0.9m Aluminum Conductor Steel Reinforced (ACSR) cable were conducted employing two longitudinal piezoelectric transducers attached to the ends of the cable in a through transmission configuration. Longitudinal L(0,1) and flexural F(1,1) modes were identified at 500 kHz via dispersion curves and Wavelet Transforms (WT). Experiments included artificial damage introduced in the middle of the cable by cutting and gradually increasing the cut depth from 1mm to 9mm. The attained results suggest a change of guided modes excitation and reception from F(1,1) to L(0,1) due to reduced friction contact among individual wires. This change of guided waves modes in response to damage variations, associated with the transmitted ultrasonic energy, was identified and discussed as potential mean of damage monitoring.



Keywords: Ultrasonic guided waves; wavelet transform; ACSR cables inspection.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ju\'{a}rez-Maldonado2014,

title = {Dynamic modeling of mineral contents in greenhouse tomato crop},

author = {Ju\'{a}rez-Maldonado, Antonio and Benavides-Mendoza, Adalberto and de-Alba-Romenus, Karim and Morales-Diaz, America B.},

url = {http://www.scirp.org/journal/PaperInformation.aspx?paperID=42553},

doi = {10.4236/as.2014.52015},

issn = {2156-8561},

year  = {2014},

date = {2014-00-00},

journal = {agricultura sciences},

pages = {114-123 },

abstract = {Tomato is one the most important vegetables worldwide and mineral nutrition in tomato crops is considered as the second most important factor in crop management after water availability. Mathematical modeling techniques allow us to design strategies for nutrition management. In order to generate the necessary information to validate and calibrate a dynamic growth model, two tomato crop cycles were developed. Several mineral analyses were performed during crop development to determine the behavior of N, P, K, Ca, Mg and S in different organs of the plant. Regression models were generated to mimic the behavior of minerals in tomato plants and they were included in the model in order to simulate their dynamic behavior. The results of this experiments showed that the growth model adequately simulates leaf and fruit weight (EF > 0.95 and Index > 0.95). As for harvested fruits and harvested leaves, the simulation was less efficient (EF < 0.90 and Index < 0.90). Simulation of minerals was suitable for N, P, K and S as both, the EF and the Index, had higher values than 0.95. In the case of Ca and Mg, simulations showed indices below 0.90. These models can be used for planning crop management and to design more appropriate fertilization strategies.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{SanchezEscobedo2013389,

title = {3D face shape prediction from a frontal image using cylindrical coordinates and partial least squares},

author = {Sanchez-Escobedo, Dalila and Castelan, Mario},

url = {http://www.sciencedirect.com/science/article/pii/S0167865512002929},

doi = {http://dx.doi.org/10.1016/j.patrec.2012.09.007},

issn = {0167-8655},

year  = {2013},

date = {2013-01-01},

journal = {Pattern Recognition Letters},

volume = {34},

number = {4},

pages = {389 - 399},

abstract = {This paper addresses the problem of linearly approximating 3D shape from intensities in the context of facial analysis. In other words, given a frontal pose grayscale input face, the direct estimation of its 3D structure is sought through a regression matrix. Approaches falling into this category generally assume that both 2D and 3D features are defined under Cartesian schemes, which is not optimal for the task of novel view synthesis. The current article aims to overcome this issue by exploiting the 3D structure of faces through cylindrical coordinates, aided by the partial least squares regression. In the context of facial shape analysis, partial least squares builds a set of basis faces, for both grayscale and 3D shape spaces, seeking for maximizing shared covariance between projections of the data along the basis faces. Experimental tests show how the cylindrical representations are suitable for the purposes of linear regression, resulting in a benefit for the generation of novel facial views, showing a potential use in model based face identification.},

note = {Advances in Pattern Recognition Methodology and Applications},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{LopezJuarez20135,

title = {Using Object’s Contour, Form and Depth to Embed Recognition Capability into Industrial Robots},

author = {Lopez-Juarez, Ismael and Castelan, Mario and Castro-Mart\^{i}nez, Francisco Javier and Pe\~{n}a-Cabrera, Mario and Osorio-Comparan, Roman},

url = {http://www.sciencedirect.com/science/article/pii/S1665642313715116},

doi = {http://dx.doi.org/10.1016/S1665-6423(13)71511-6},

issn = {1665-6423},

year  = {2013},

date = {2013-01-01},

journal = {Journal of Applied Research and Technology},

volume = {11},

number = {1},

pages = {5 - 17},

abstract = {Abstract Robot vision systems can differentiate parts by pattern matching irrespective of part orientation and location. Some manufacturers offer 3D guidance systems using robust vision and laser systems so that a 3D programmed point can be repeated even if the part is moved varying its location, rotation and orientation within the working space. Despite these developments, current industrial robots are still unable to recognize objects in a robust manner; that is, to distinguish an object among equally shaped objects taking into account not only the object’s contour but also its form and depth information, which is precisely the major contribution of this research. Our hypothesis establishes that it is possible to integrate a robust invariant object recognition capability into industrial robots by using image features from the object’s contour (boundary object information), its form (i.e., type of curvature or topographical surface information) and depth information (from stereo disparity maps). These features can be concatenated in order to form an invariant vector descriptor which is the input to an artificial neural network (ANN) for learning and recognition purposes. In this paper we present the recognition results under different working conditions using a KUKA KR16 industrial robot, which validated our approach.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{RIVEROJUAREZ20131552,

title = {3D Heterogeneous Multi-sensor Global Registration},

author = {Rivero-Juarez, Joaquin and Martinez-Garcia, Edgar A. and Torres-Mendez, Luz Abril and Elara Mohan, Rajesh },

url = {http://www.sciencedirect.com/science/article/pii/S1877705813017517},

doi = {http://dx.doi.org/10.1016/j.proeng.2013.09.237},

issn = {1877-7058},

year  = {2013},

date = {2013-01-01},

journal = {Procedia Engineering},

volume = {64},

pages = {1552 - 1561},

abstract = {This manuscript presents a deterministic model to register heterogeneous 3D data arising from a ring of eight ultrasonic sonar, one high data density LiDAR (light detection and ranging), and a semi-ring of three visual sensors. The three visual sensors are arranged in a cylindrical ring, and although they provide 2D colour images, a radial multi-stereo geometric model is proposed to yield 3D data. All deployed sensors are geometrically placed on-board a wheeled mobile robot platform, and data registration is carried out navigating indoors. The sensor devices in discussion are coordinated and synchronized by a home-made distributed sensor suite system. Mathematical deterministic formulation for data registration is used to obtain experimental and numerical results on global mapping. Data registration relies on a geometric model to compute depth information from a semi- circular trinocular stereo sensor that is proposed to rectify and calibrate three image frames with different orientations and positions, but with same projection point.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Miranda2012,

title = {Face colour synthesis using partial least squares and the luminance-α-β colour transform},

author = {Miranda-Hernandez, Jocelyn and Castelan, Mario and Torres-Mendez, Luz Abril },

url = {http://digital-library.theiet.org/content/journals/10.1049/iet-cvi.2011.0168},

doi = {10.1049/iet-cvi.2011.0168},

isbn = {1751-9632},

year  = {2012},

date = {2012-07-01},

journal = {IET Computer Vision},

volume = {6},

number = {4},

pages = {263-272},

abstract = {For many tasks, it is necessary to synthesise realistic colour in faces from greyscale values. This is the problem the authors address in this study. Rather than propagating colour information in some regions of the image or transferring colour from an image source to a greyscale using some corresponding criterion, as many colouring systems attempt to do, they seek to synthesise facial colour information using a database of examples. This methodology is divided into two main stages. In the first stage the facial skin tone is predicted through the multiple linear regression method known as partial least squares. This regression allows to define a linear transformation between facial greyscale and colour subspaces. The second stage involves the luminance-α-β (Lαβ) colour transform which is responsible for the recovery of the fine facial detail. The core of the proposed methodology is the combination of statistical subspace analysis with the appropriate colour transform so as to produce realistic facial colourisation results in a direct manner.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Martinez2012,

title = {Incorporating Angular Ratio Images into Two-Frame Stereo Algorithms},

author = {Martinez-Gonzalez, Pablo and Castelan, Mario },

url = {http://www.cys.cic.ipn.mx/ojs/index.php/CyS/article/view/1372},

issn = {2007-9737},

year  = {2012},

date = {2012-01-02},

journal = {Computaci\'{o}n y Sistemas},

volume = {16},

number = {1},

pages = {53-69},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{RIOSCABRERA2012742,

title = {Efficient multi-camera vehicle detection, tracking, and identification in a tunnel surveillance application},

author = {Rios-Cabrera, Reyes and Tuytelaars, Tinne and Van Gool, Luc J.},

url = {http://www.sciencedirect.com/science/article/pii/S1077314212000380},

doi = {http://dx.doi.org/10.1016/j.cviu.2012.02.006},

issn = {1077-3142},

year  = {2012},

date = {2012-01-01},

journal = {Computer Vision and Image Understanding},

volume = {116},

number = {6},

pages = {742 - 753},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Caldwell2012,

title = {A High Performance Tactile Feedback Display and Its Integration in Teleoperation},

author = {Caldwell, D. G. and Garcia-Hernandez, Nadia and Tsagarakis, N. G. and Sarakoglou, Ioannis},

url = {doi.ieeecomputersociety.org/10.1109/TOH.2012.20},

doi = {10.1109/TOH.2012.20},

issn = {1939-1412},

year  = {2012},

date = {2012-01-01},

journal = {IEEE Transactions on Haptics},

volume = {5},

pages = {252-263},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{5069092,

title = {Relating intensities with three-dimensional facial shape using partial least squares},

author = {Castelan, Mario and Van Horebeek, Johan},

url = {http://ieeexplore.ieee.org/document/4563049/?arnumber=4563049},

doi = {10.1049/iet-cvi.2008.0060},

issn = {1751-9632},

year  = {2009},

date = {2009-06-01},

journal = {IET Computer Vision},

volume = {3},

number = {2},

pages = {60-73},

abstract = {The authors apply partial least squares regression to predict three-dimensional (3D) face shape from a single image. PLS describes the relationship between independent (intensity images) and dependent (3D shape) variables by seeking directions in the space of independent variables that are associated with large variations in the space of dependent variables. We use this idea to construct statistical models of intensity and 3D shape that capture strongly linked variations in both spaces. This decomposition leads to the construction of two different models that capture common variations in 3D shape and intensity. Using the intensity model, a set of parameters is obtained from out-of-training intensity examples. These intensity parameters can then be used directly in the 3D shape model to approximate facial shape. Experiments show that prediction is achieved with reasonable accuracy, improving results obtained through canonical correlation analysis.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{4130415,

title = {A Coupled Statistical Model for Face Shape Recovery From Brightness Images},

author = {Castelan, Mario and Smith, William A P and Hancock, Edwin R },

url = {http://ieeexplore.ieee.org/document/4130415/?arnumber=4130415},

doi = {10.1109/TIP.2006.891351},

issn = {1057-7149},

year  = {2007},

date = {2007-04-01},

journal = {IEEE Transactions on Image Processing},

volume = {16},

number = {4},

pages = {1139-1151},

abstract = {We focus on the problem of developing a coupled statistical model that can be used to recover facial shape from brightness images of faces. We study three alternative representations for facial shape. These are the surface height function, the surface gradient, and a Fourier basis representation. We jointly capture variations in intensity and the surface shape representations using a coupled statistical model. The model is constructed by performing principal components analysis on sets of parameters describing the contents of the intensity images and the facial shape representations. By fitting the coupled model to intensity data, facial shape is implicitly recovered from the shape parameters. Experiments show that the coupled model is able to generate accurate shape from out-of-training-sample intensity images},

keywords = {},

pubstate = {published},

tppubtype = {article}

}