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Proceedings Paper

Two-dimensional motion detector based on insect vision
Author(s): Alireza Moini; Abdesselam Bouzerdoum; Andre Yakovleff; Kamran Eshraghian
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Paper Abstract

Implementing motion detection algorithms using analog VLSI techniques has proven to be a challenging task due to several obstacles, including the limitations of analog VLSI, the algorithmic limitations brought forward by complex motion detection schemes, and the effect of various types of noise. Insect vision has been an inspiring model for motion detectors, as insects heavily rely on motion detection for navigation, and the natural complexity of their neuro-visual circuitry is also less than that of vertebrates. In an effort to implement the so called template model of insect vision, a comparative study of various analog differentiators was undertaken by implementing different candidates on a test chip. Based on the results, a 64 by 4 motion detector has been designed and fabricated. The chip is designed in a 0.8 micrometer 3M-1P CMOS process, and the 2-D array occupies an area of 1.5 multiplied by 3.1 mm2. Each cell comprises a bipolar-mode photodetector, an adaptive amplifier, the improved analog differentiator, and thresholding circuits.

Paper Details

Date Published: 19 December 1996
PDF: 12 pages
Proc. SPIE 2950, Advanced Focal Plane Arrays and Electronic Cameras, (19 December 1996); doi: 10.1117/12.262519
Show Author Affiliations
Alireza Moini, Univ. of Adelaide (Australia)
Abdesselam Bouzerdoum, Univ. of Adelaide (Australia)
Andre Yakovleff, Defence Science and Technology Organisation (Australia)
Kamran Eshraghian, Edith Cowan Univ. (Australia)

Published in SPIE Proceedings Vol. 2950:
Advanced Focal Plane Arrays and Electronic Cameras
Thierry M. Bernard, Editor(s)

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