2012 12th International Conference on Control Automation Robotics &Amp; Vision (ICARCV) 2012
DOI: 10.1109/icarcv.2012.6485335
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Error regulation strategies for Model Based visual servoing tasks: Application to autonomous object grasping with Nao robot

Abstract: When applying service robotic tasks using sensor based control, a classical exponential decrease of the error is usually used in the control laws which can reduces the performance of the executed task. In fact, due to this choice, the convergence time greatly increases especially at the end of the process. To ameliorate the performance of such tasks, we present in this paper two new error regulation strategies to accelerate the service tasks execution. These propositions are compared with the classical one in … Show more

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Cited by 4 publications
(4 citation statements)
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References 17 publications
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“…The output linguistic terms for each PID gain k p , k i and k d are (Fig. method is used to defuzzify the output variable (22). In order to obtain feasible and optimum value for the PID parameters, the actual gains are computed using the range of each parameter determined experimentally (23) from the outputs of the fuzzy inference system.…”
Section: ) Adaptive Position Controlmentioning
confidence: 99%
See 1 more Smart Citation
“…The output linguistic terms for each PID gain k p , k i and k d are (Fig. method is used to defuzzify the output variable (22). In order to obtain feasible and optimum value for the PID parameters, the actual gains are computed using the range of each parameter determined experimentally (23) from the outputs of the fuzzy inference system.…”
Section: ) Adaptive Position Controlmentioning
confidence: 99%
“…The gain value is small initially (η 0 ) while the error is larger, and the error is reduced exponentially until it reaches a specific threshold (∂) near the equilibrium point (r φ S = 0). Then, as the orientation error got smaller, the gain switches to a larger gain value (η 0 < η 1 ) to eliminate the remaining orientation error as fast as possible [22]. By using the adaptive orientation signal, the robot end-effector orientation angles are calculated by (28).…”
Section: ) Adaptive Orientation Controlmentioning
confidence: 99%
“…La plataforma NAO, utilizada en este proyecto, ha sido usada en visual servoing [9], fútbol robótico [10], aprendizaje de movimientos por imitación [11], navegación en ambientes [12], técnicas de caminata bípeda [13], además en estudios sobre la interacción humanorobot, donde el sistema de visión permite la grabación de la actividad, y la detección de rostros, movimientos de asentimiento y negación con la cabeza [14], [15], [16], entre otras.…”
Section: Plataforma Robóticaunclassified
“…robot control based on visual information, has been a well studied problem [1], [2]. Several methods were developed targeting different applications, such as grasping [3], mobile robot navigation [4] or autonomous aerial vehicle guidance [5]. In this paper we are interested in visual servoing using a robot head, commonly referred to as head-eye coordination, which was studied in a wide range of applicative scenarios involving a single object/person of interest [6], [7], [8], [9], [10], [11], [12], [13], [14] and based on methodologies such as detect and pursuit, image feature tracking, or Kalmann filtering.…”
Section: Introductionmentioning
confidence: 99%