Six degree-of-freedom hand/eye visual tracking with uncertain parameters

Nikolaos P Papanikolopoulos, Brad Nelson, Pradeep K. Khosla

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

Algorithms for 3D robotic visual tracking of moving targets whose motion is 3D and consists of translational and rotational components are presented. The objective of the system is to track selected features on moving objects and to place their projections on the image plane at desired positions by appropriate camera motion. The most important characteristics of the proposed algorithms are the use of a single camera mounted on the end-effector of a robotic manipulator (eye-in-hand configuration), and the fact that these algorithms do not require accurate knowledge of the relative distance of the target object from the camera frame. This fact makes these algorithms particularly useful in environments that are difficult to calibrate. The camera model used introduces a number of parameters that are estimated on-line, further reducing the algorithms' reliance on precise calibration of the system. An adaptive control algorithm compensates for modeling errors, tracking errors, and unavoidable computational delays which result from time-consuming image processing. Experimental results are presented to verify the efficacy of the proposed algorithms. These experiments were performed using a multirobotic system consisting of Puma 560 manipulators.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE International Conference on Robotics and Automation
PublisherPubl by IEEE
Pages174-179
Number of pages6
Editionpt 1
ISBN (Print)0818653329
StatePublished - Jan 1 1994
EventProceedings of the 1994 IEEE International Conference on Robotics and Automation - San Diego, CA, USA
Duration: May 8 1994May 13 1994

Publication series

NameProceedings - IEEE International Conference on Robotics and Automation
Numberpt 1
ISSN (Print)1050-4729

Other

OtherProceedings of the 1994 IEEE International Conference on Robotics and Automation
CitySan Diego, CA, USA
Period5/8/945/13/94

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