Cmos Image Sensors Dynamic Range and SNR Enhancement via Statistical Signal Processing

by Xinqiao Liu , Abbas El Gamal , Mark A. Horowitz , Brian A. Wandell

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Datum	Value	Source
TITLE	Cmos Image Sensors Dynamic Range and SNR Enhancement via Statistical Signal Processing	user correction - Legacy Corrections
AUTHOR NAME	Xinqiao Liu	user correction - Legacy Corrections
AUTHOR NAME	Abbas El Gamal	user correction - Legacy Corrections
AUTHOR NAME	Mark A. Horowitz	user correction - Legacy Corrections
AUTHOR NAME	Brian A. Wandell	user correction - Legacy Corrections
ABSTRACT	Most of today's video and digital cameras use CCD image sensors, where the electric charge collected by the photodetector array during exposure time is serially shifted out of the sensor chip resulting in slow readout speed and high power consumption. Recently developed CMOS image sensors, by comparison, are read out non-destructively and in a manner similar to a digital memory and can thus be operated at very high frame rates. A CMOS image sensor can also be integrated with other camera functions on the same chip ultimately leading to a single-chip digital camera with very compact size, low power consumption and additional functionality. CMOS image sensors, however, generally su#er from lower dynamic range than CCDs due to their high read noise and non-uniformity. Moreover, as sensor design follows CMOS technology scaling, well capacity will continue to decrease, eventually resulting in unacceptably low SNR.	user correction - Legacy Corrections
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