Title :
Study on uncalibrated algorithm for dynamic visual servoing system
Author_Institution :
Coll. of Manage., Harbin Univ. of Commerce, Harbin, China
Abstract :
In order to calibrate cameras and robot models precisely in industrial practice, a novel dynamic uncalibrated eye-in-hand visual servoing system to track a moving target is proposed. The method does not require calibration of camera and robot kinematic models. Visual serving algorithm to track dynamic image is developed through minimizing nonlinear objective function. Because the large residual is not approximated in dynamic environment and the change of composite image Jacobian with time increment can´t be computed in visual servoing system now, large residuals are dynamic approximated and the change of composite image Jacobian at each iterative step is computed. Simulation results demonstrate the validity of these approaches.
Keywords :
calibration; cameras; robot dynamics; robot kinematics; robot vision; target tracking; visual servoing; camera calibration; composite image Jacobian; dynamic image tracking; dynamic uncalibrated eye-in-hand visual servoing system; dynamic visual servoing system; iterative step; moving target; robot kinematic model; robot model; uncalibrated algorithm; visual servoing algorithm; Cameras; Estimation; Heuristic algorithms; Jacobian matrices; Visual servoing; dynamic target; eye-in-hand; kinematic model; visual servoing;
Conference_Titel :
Management Science and Industrial Engineering (MSIE), 2011 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-8383-9
DOI :
10.1109/MSIE.2011.5707673