Analog Metal-Oxide-Semiconductor Integrated Circuit Implementation of Approach Detection with Simple-Shape Recognition Based on Visual Systems of Lower Animals |
| |
Authors: | Kimihiro Nishio Hiroo Yonezu Masahiro Ohtani Hitoshi Yamada Yuzo Furukawa |
| |
Institution: | (1) Department of Electrical and Electronic Engineering, Toyohashi University of Technology, 1-1, Tempaku-cho, Toyohashi 441-8580, Japan;(2) Present address: Department of Electrical Engineering, Nara National College of Technology, 22, Yata-cho, Yamatokoriyama, Nara 639-1080, Japan;(3) Present address: Research Laboratories, DENSO CORPORATION, 500-1, Minamiyama, Komenoki-cho, Nissin, Aichi 470-0111, Japan |
| |
Abstract: | We proposed an analog network for motion detection of an approaching object with simple-shape recognition based on the visual systems of lower animals. Locusts can detect an approaching object by performing a simple process in a descending contralateral motion detector (DCMD) existing in their brain, which senses the increase in size and expansion velocity of the image projected on a retina just before collision. The responses correspond to the approaching velocity and direction. Frogs can recognize a simple shape by performing a simple process in a tectum and thalamus existing in their brain based on retinal information; this is called the Ewert von Seelen model. The proposed network was constructed with simple analog metal-oxide-semiconductor (MOS) circuits. Simulation results with a simulation program with integrated circuit emphasis (SPICE) showed that the network was able to detect the approaching velocity and direction, and also recognized simple shapes such as a circle, square, triangle and rectangle. |
| |
Keywords: | edge detection motion detection shape recognition descending contralateral motion detector (DCMD) Ewert von Seelen model |
本文献已被 SpringerLink 等数据库收录! |
|