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Proceedings Paper

Simultaneous measurement of the position and body deformation of a swimming fish by a video tracking system
Author(s): Hao Wang; LiJiang Zeng
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Paper Abstract

A novel video tracking system based on fringe tracking and camera tracking is developed to simultaneously measure the spatial position and the body deformation of a swimming fish. The system control module consists of a fringe pattern tracking system that includes one rotating tracking mirror and a fringe pattern projector, and a video tracking system that includes another rotating tracking mirror and a high-speed camera. The two mirrors are mounted on two step-motors respectively. In the control module, a tracking gate technique based on the target trajectory identification and prediction algorithm is developed. The control module, through the two tracking mirrors, drives the fringe pattern projector and a high-speed camera to track the swimming fish. The rotating angles of tracking mirrors are recorded simultaneously. Body position and deformation are measured from the distorted fringes by the triangulation. We successfully apply the system to a swimming fish.

Paper Details

Date Published: 4 June 2002
PDF: 11 pages
Proc. SPIE 4773, Optical Scanning 2002, (4 June 2002); doi: 10.1117/12.469194
Show Author Affiliations
Hao Wang, Tsinghua Univ. (China)
LiJiang Zeng, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4773:
Optical Scanning 2002
Stephen F. Sagan; Gerald F. Marshall; Leo Beiser, Editor(s)

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