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IJAT Vol.5 No.2 pp. 241-246
doi: 10.20965/ijat.2011.p0241
(2011)

Paper:

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Full Leg Control of a Quadruped Robot Using Linear Visual Servoing with a Stereo Omnidirectional Camera

Yukinari Inoue* and Noriaki Maru**

*Noritsu Kouki Co. Ltd., 579-1 Umehara, Wakayama, Japan

**Systems Engineering, Wakayama University, Sakaedani 930, Wakayama, Japan

Received:
October 13, 2010
Accepted:
January 5, 2011
Published:
March 5, 2011
Creative Commons License
Keywords:
quadruped robot, linear visual servoing, binocular visual space, stereo ominidirectional camera
Abstract
The authors have previously proposed foot tip control for quadruped robots using linear visual servoing (LVS) with a normal stereo camera. However, a normal stereo camera has a narrow field of view and is incapable of seeing all four legs simultaneously. Consequently, it has been a problem that the control of all the legs have required that the rotatation of the camera be controlled. This article proposes a method by which a stereo omnidirectional camera is provided at a position low on the body to control all four legs through LVS. In this article, we at first present a transformation equation from an omnidirectional image to a binocular visual space, and we develop a servo equation of LVS in which an omnidirectional image is used. Then, through simulation, we confirm trajectories with the LVS applied to foot tip control. We also conduct an experiment using TITAN-VIII to demonstrate the efficacy of the proposed method.
Cite this article as:
Y. Inoue and N. Maru, “Full Leg Control of a Quadruped Robot Using Linear Visual Servoing with a Stereo Omnidirectional Camera,” Int. J. Automation Technol., Vol.5 No.2, pp. 241-246, 2011.
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References
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