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Proceedings Paper

Multiplication-based analog motion detection chip
Author(s): Andrew J. Moore; Christof Koch
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Paper Abstract

Novel use of an analog motion detection circuit is presented. The circuit, developed by Tanner and Mead, computes motion by dividing the time derivative of intensity by its spatial derivative; the four-quadrant division is realized with a multiplier within a negative feedback loop. The authors have opened the loop and characterized the circuit as a multiplication-based motion detector, in which the output is the product of the temporal and spatial derivatives of intensity, for various light levels and various moving patterns. An application to the time-to- contact computation is presented.

Paper Details

Date Published: 9 July 1991
PDF: 10 pages
Proc. SPIE 1473, Visual Information Processing: From Neurons to Chips, (9 July 1991); doi: 10.1117/12.45542
Show Author Affiliations
Andrew J. Moore, California Institute of Technology (United States)
Christof Koch, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1473:
Visual Information Processing: From Neurons to Chips
Bimal P. Mathur; Christof Koch, Editor(s)

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