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Optical Engineering

Adaptive thresholding for visual attention and tracking systems
Author(s): Alex Fish; Orly Yadid-Pecht
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Paper Abstract

A simple adaptive thresholding circuit for visual attention and tracking applications is presented. When used in visual attention systems or in tracking systems, the circuit allows "background" inhibition and false alarm reduction. A test chip with an eight-element adaptive thresholding circuit has been implemented in a standard 0.5-μm CMOS process and is operated via a 3.3-V supply in the saturation region. The circuit architecture is discussed, operation in saturation and subthreshold regions are explained, and measurements from a test chip are reported.

Paper Details

Date Published: 1 June 2004
PDF: 2 pages
Opt. Eng. 43(6) doi: 10.1117/1.1738434
Published in: Optical Engineering Volume 43, Issue 6
Show Author Affiliations
Alex Fish, Ben-Gurion Univ. (Israel)
Orly Yadid-Pecht, Ben-Gurion Univ. of the Negev (Israel)

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