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Proposition for Retina Model Based on Electrophysiological Mechanism and Analysis for Spatiotemporal Response  

Lee, Jeong-Woo (School of Electronics and Electrical Eng., Kyungpook National University)
Chae, Seung-Pyo (NBRC, Seoul National University)
Cho, Jin-Ho (School of Electronics and Electrical Eng., Kyungpook National University)
Kim, Myoung-Nam (Dept. of Biomedical Eng., School of Medicine, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.39, no.6, 2002 , pp. 49-58 More about this Journal
Abstract
Based on electrophysiological retina mechanism, a retina model is proposed, which has similar response characteristics compared with the real primate retina. Photoreceptors, horizontal cells, and bipolar cells are modeled based on the previously studied retina models. And amacrine cells known to have relation to movements detection, and bipolar cell terminals are newly modeled using 3 NDP mechanism. The proposed model verified by analyzing the spatial response characteristics to stationary and moving stimuli, and characteristics for different speeds. Through this retina model, human vision system could be applied to computer vision systems for movement detection, and it could be the basic research for the implantable artificial retina.
Keywords
electrophysiological retina mechanism; 3 NDP; retina model; amacrine cell;
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