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Active-Pixel Sensors With "Winner-Take-All" Mode

Yadid-Pecht, Orly and Fossum, Eric and Mead, Carver (1998) Active-Pixel Sensors With "Winner-Take-All" Mode. NASA Tech Briefs, 22 . pp. 43-44. ISSN 1049-3522. https://resolver.caltech.edu/CaltechAUTHORS:20150915-132810466

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Abstract

Circuits to generate the intensity reading and the coordinates of the brightest pixel in each image would be added to imaging photodetector arrays of the active-pixel-sensor (APS) type, according to a proposal. For a given APS, the additional circuitry for locating the brightest pixel would be installed at the periphery of the basic APS circuit. The additional circuitry would thus not degrade the original optical properties or interfere with the original electronic functions of the APS. The APS could be operated in its normal image-readout mode or, optionally, it could be operated with the additional circuitry in the brightest-pixel mode. Potential applications could include star tracking or fast tracking of a moving laser-beam spot in laser communication system.


Item Type:Article
Record Number:CaltechAUTHORS:20150915-132810466
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150915-132810466
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60257
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:15 Sep 2015 23:09
Last Modified:03 Oct 2019 08:55

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