Continuous high-resolution observation system using high-speed gaze and focus control with wide-angle triangulation

Tomohiro Sueishi; Takuya Ogawa; Shoji Yachida; Masatoshi Ishikawa

doi:10.1117/12.2544313

20 February 2020 Continuous high-resolution observation system using high-speed gaze and focus control with wide-angle triangulation

Tomohiro Sueishi, Takuya Ogawa, Shoji Yachida, Masatoshi Ishikawa

Author Affiliations +

Proceedings Volume 11250, High-Speed Biomedical Imaging and Spectroscopy V; 1125012 (2020) https://doi.org/10.1117/12.2544313
Event: SPIE BiOS, 2020, San Francisco, California, United States

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.

Conference Presentation

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Tomohiro Sueishi, Takuya Ogawa, Shoji Yachida, and Masatoshi Ishikawa "Continuous high-resolution observation system using high-speed gaze and focus control with wide-angle triangulation", Proc. SPIE 11250, High-Speed Biomedical Imaging and Spectroscopy V, 1125012 (20 February 2020); https://doi.org/10.1117/12.2544313

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