Purposeful gazing in active vision through phase-based disparity and dynamic vergence control

Liwei Wu; Michael M. Marefat

doi:10.1117/12.189076

13 October 1994 Purposeful gazing in active vision through phase-based disparity and dynamic vergence control

Liwei Wu, Michael M. Marefat

Proceedings Volume 2354, Intelligent Robots and Computer Vision XIII: 3D Vision, Product Inspection, and Active Vision; (1994) https://doi.org/10.1117/12.189076
Event: Photonics for Industrial Applications, 1994, Boston, MA, United States

Abstract

In this research we propose solutions to the problems involved in gaze stabilization of a binocular active vision system, i.e., vergence error extraction, and vergence servo control. Gazing is realized by decreasing the disparity which represents the vergence error. A Fourier transform based approach that robustly and efficiently estimates vergence disparity is developed for holding gaze on selected visual target. It is shown that this method has certain advantages over existing approaches. Our work also points out that vision sensor based vergence control system is a dual sampling rate system. Feedback information prediction and dynamic vision-based self-tuning control strategy are investigated to implement vergence control. Experiments on the gaze stabilization using the techniques developed in this paper are performed.

Citation Download Citation

Liwei Wu and Michael M. Marefat "Purposeful gazing in active vision through phase-based disparity and dynamic vergence control", Proc. SPIE 2354, Intelligent Robots and Computer Vision XIII: 3D Vision, Product Inspection, and Active Vision, (13 October 1994); https://doi.org/10.1117/12.189076

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