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Proceedings Paper

Continuous high-resolution observation system using high-speed gaze and focus control with wide-angle triangulation
Author(s): Tomohiro Sueishi; Takuya Ogawa; Shoji Yachida; Masatoshi Ishikawa
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Paper Abstract

High-resolution image-based observations of 3D motion from multiple objects are useful for individual identification and monitoring of crowds of objects/creatures. However, using only a wide-angle camera does not allow suitable observations given the tradeoff between angle of view and resolution. In contrast, a high-speed gaze controller and a high-speed variable focus lens can provide image recognition with high-resolution observations. On the other hand, simultaneous control can be inefficient for single-target tracking and multiple-target switching against automatic gaze/focus scanning. Therefore, we propose a hybrid high-speed gaze/focus control tracking system and cooperative operation with a wide-angle camera. Triangulation from the tracking system and wideangle camera based on a fundamental matrix and a lookup table enables the fast convergence of the gaze/focus to different targets, resulting in efficient continuous high-resolution observation of multiple dynamic objects. We experimentally verified the calibration accuracy, the high temporal response of gaze/focus during tracking onset, and the suitable identification performance for a very small moving marker under high-resolution tracking observation. We have also confirmed the long and detailed tracking of freely swimming fish under continuous observation.

Paper Details

Date Published: 20 February 2020
PDF: 10 pages
Proc. SPIE 11250, High-Speed Biomedical Imaging and Spectroscopy V, 1125012 (20 February 2020); doi: 10.1117/12.2544313
Show Author Affiliations
Tomohiro Sueishi, The Univ. of Tokyo (Japan)
Takuya Ogawa, NEC Corp. (Japan)
Shoji Yachida, NEC Corp. (Japan)
Masatoshi Ishikawa, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 11250:
High-Speed Biomedical Imaging and Spectroscopy V
Kevin K. Tsia; Keisuke Goda, Editor(s)

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