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Proceedings Paper

Parallel computation of level set method for 500 Hz visual servo control
Author(s): Xianfeng Fei; Yasunobu Igarashi; Koichi Hashimoto
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Paper Abstract

We propose a 2D microorganism tracking system using a parallel level set method and a column parallel vision system (CPV). This system keeps a single microorganism in the middle of the visual field under a microscope by visual servoing an automated stage. We propose a new energy function for the level set method. This function constrains an amount of light intensity inside the detected object contour to control the number of the detected objects. This algorithm is implemented in CPV system and computational time for each frame is 2 [ms], approximately. A tracking experiment for about 25 s is demonstrated. Also we demonstrate a single paramecium can be kept tracking even if other paramecia appear in the visual field and contact with the tracked paramecium.

Paper Details

Date Published: 10 February 2009
PDF: 10 pages
Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261S (10 February 2009); doi: 10.1117/12.822582
Show Author Affiliations
Xianfeng Fei, Tohoku Univ. (Japan)
Guizhou Univ. (China)
Yasunobu Igarashi, Tohoku Univ. (Japan)
Koichi Hashimoto, Tohoku Univ. (Japan)
Japan Science and Technology Agency (Japan)

Published in SPIE Proceedings Vol. 7126:
28th International Congress on High-Speed Imaging and Photonics
Harald Kleine; Martha Patricia Butron Guillen, Editor(s)

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