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An Active Stereo Vision System Based on Neural Pathways of Human Binocular Motor System

Journal of Bionic Engineering 2007年第4期4卷 185-192页

作者： Yu-zhang Gu Makoto Sato Xiao-lin Zhang Department of Advanced Applied Electronics Tokyo Institute of Technology 4259 Nagatsuda Midori-ku Yokohama 226-8503 Japan Precision and Intelligence Laboratory Tokyo Institute of Technology 4259 Nagatsuda Midori-ku Yokohama 226-8503 Japan

An active stereo vision system based on a model of neural pathways of human binocular motor system is proposed. With this model, it is guaranteed that the two cameras of the active stereo vision system can keep their lines of sight fixed on the same target object during smooth pursuit. This feature is very important for active stereo vision systems, since not only 3D reconstruction needs the two cameras have an overlapping field of vision, but also it can facilitate the 3D reconstruction algorithm. To evaluate the effectiveness of the proposed method, some software simulations are done to demonstrate the same target tracking characteristic in a virtual environment apt to mistracking easily. Here, mistracking means two eyes track two different objects separately. Then the proposed method is implemented in our active stereo vision system to perform real tracking task in a laboratory scene where several persons walk self-determining. Before the proposed model is implemented in the system, mistracking occurred frequently. After it is enabled, mistracking never occurred. The result shows that the vision system based on neural pathways of human binocular motor system can reliably avoid mistracking.

关键词： binocular motor system neural pathway gaze mistracking

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