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A Two-Dimensional Network of Analog Circuits for Motion Detection Based on the Frog Visual System Kimihiro NISHIO Hiroo YONEZU Yuzo FURUKAWA Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E89-A No.2 pp.428-438 Publication Date: 2006/02/01 Online ISSN: 1745-1337 DOI: 10.1093/ietfec/e89-a.2.428 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics) Category: Keyword: motion detection, analog integrated circuit, tectum, thalamus, vision chip, Full Text: PDF(1.3MB)>>
Summary: A two-dimensional network for motion detection constructed of simple analog circuits was proposed and designed based on the frog visual system. In the frog visual system, the two-dimensional motion of a moving object can be detected by performing simple information processing in the tectum and thalamus of the frog brain. The measured results of the test chip fabricated by a 1.2 µm complementary metal oxide semiconductor (CMOS) process confirmed the correct operation of the basic circuits in the network. The results obtained with the simulation program with integrated circuit emphasis (SPICE) showed that the proposed network can detect the motion direction and velocity of a moving object. Thus, a chip for two-dimensional motion detection was realized using the proposed network. | ||||||||||
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