Motion capture system using single-track gray code

Authors:
Tomoko Fujii;Hideaki Nii;Takuji Tokiwa;Maki Sugimoto;Masahiko Inami
Affiliations:
University of Electro-Communications, Chofugaoka, Chofu-shi, Tokyo, Japan;University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan;University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan;Keio University, Hiyoshi, Kohoku-ku, Yokohama;Keio University, Hiyoshi, Kohoku-ku, Yokohama
Venue:
ACE '08 Proceedings of the 2008 International Conference on Advances in Computer Entertainment Technology
Year:
2008

Citing 2
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The structure of single-track Gray codes

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Abstract

In this paper, we describe a high speed optical motion capture method that has a simple mechanism. We use a light shielding filter using a pattern of Single-Track Gray Code (STGC) [1] absolute encoder to take location of IR light marker tags instead of high-speed camera or row of binary coded masks. Therefore, this system can convert the position coordinate of tags into the digital signal directly, and it can track faster than the traditional method, with only the combination of inexpensive optical parts.