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Proceedings Paper

High-dynamic-range active pixel sensor
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Paper Abstract

A new pixel structure for high dynamic range imaging is proposed. The internal pixel circuit resets the pixel each time the well capacity nears saturation and a counter, implemented in the pixel itself (or in an external memory), records the number of resets per integration time. The increase in the dynamic range is given by a factor of (m + 1) where m is the number of internal resets per integration time. The peak signal-to-noise ratio will be increased due to the effective increase in the well capacity. A multiple sampling technique can be used in the combination with this proposed structure to achieve a further increase in dynamic range.

Paper Details

Date Published: 7 June 2004
PDF: 12 pages
Proc. SPIE 5301, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications V, (7 June 2004); doi: 10.1117/12.525720
Show Author Affiliations
Thalis Anaxagoras, Univ. of Manchester Institute of Science and Technology (United Kingdom)
Nigel M. Allinson, Univ. of Manchester Institute of Science and Technology (United Kingdom)


Published in SPIE Proceedings Vol. 5301:
Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications V
Nitin Sampat; Morley M. Blouke; Ricardo J. Motta, Editor(s)

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