Improvement of color recognition using colored objects

Authors:
T. Kikuchi;K. Umeda;R. Ueda;Y. Jitsukawa;H. Osumi;T. Arai
Affiliations:
Chuo University, Bunkyo-ku, Tokyo, Japan;Chuo University, Bunkyo-ku, Tokyo, Japan;The University of Tokyo, Bunkyo-ku, Tokyo, Japan;The University of Tokyo, Bunkyo-ku, Tokyo, Japan;Chuo University, Bunkyo-ku, Tokyo, Japan;The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Venue:
RoboCup 2005
Year:
2006

Citing 2
Cited 1

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Abstract

Recognition of colored objects is important and practical for robot vision. This paper proposes a color recognition method which is robust to illumination change. A color space of Cb/Y and Cr/Y is introduced where Cb and Cr are color difference and Y is intensity of YCbCr color space. This color space is not affected by the change of the brightness of illumination. And a method to update clusters of color table is proposed. The method can cope with the change of the color of illumination. Experiments show that the proposed method can recognize color more robustly for illumination change. RoboCup four legged robot league is chosen as the research platform.