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Record Number1272
Reference TypeConference Proceedings
Author(s)Tevatia, G.;Schaal, S.
Year2000
TitleInverse kinematics for humanoid robots
Journal/Conference/Book TitleInternational Conference on Robotics and Automation (ICRA2000)
Keywordsinverse kinematics humanoid robotics high dimensional resolved motion rate control efficient extended jacobian

Abstract

Real-time control of the endeffector of a humanoid robot in external coordinates requires computationally efficient solutions of the inverse kinematics problem. In this context, this paper investigates methods of resolved motion rate control (RMRC) that employ optimization criteria to resolve kinematic redundancies. In particular we focus on two established techniques, the pseudo inverse with explicit optimization and the extended Jacobian method. We prove that the extended Jacobian method includes pseudo-inverse methods as a special solution. In terms of computational complexity, however, pseudo-inverse and extended Jacobian differ significantly in favor of pseudo-inverse methods. Employing numerical estimation techniques, we introduce a computationally efficient version of the extended Jacobian with performance comparable to the original version . Our results are illustrated in simulation studies with a multiple degree-of-freedom robot, and were tested on a 30 degree-of-freedom robot. 
Notesclmc
URL(s) http://www-clmc.usc.edu/publications/T/tevatia-ICRA2000.pdf
Place PublishedSan Fransisco, April 24-28, 2000
Pages294-299
Short TitleInverse kinematics for humanoid robots

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