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Proceedings Paper

Low-noise signal detection technique in CMOS image sensors using frame oversampling and nondestructive high-speed readout
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Paper Abstract

In this paper, we propose a method of low-noise signal detection technique using frame oversampling and a CMOS image sensor with non-destructive high-speed readout mode. The technique enables the use of the high-gain column amplifier and the digital integration of signals without noise accumulation. The column amplifier is effective to reduce the noise due to the wideband amplifier and the quantization noises. The least square estimation of the noise using the intermediate non-destructive outputs further reduces the noise level. Simulation results show that the input referred noise can be reduced to a few electrons.

Paper Details

Date Published: 24 April 2002
PDF: 9 pages
Proc. SPIE 4669, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications III, (24 April 2002); doi: 10.1117/12.463417
Show Author Affiliations
Shoji Kawahito, Shizuoka Univ. (Japan)
Nobuhiro Kawai, Toyohashi Univ. of Technology (Japan)


Published in SPIE Proceedings Vol. 4669:
Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications III
Nitin Sampat; John Canosa; Morley M. Blouke; John Canosa; Nitin Sampat, Editor(s)

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