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J. Low Power Electron. Appl. 2011, 1(1), 59-76; doi:10.3390/jlpea1010059
Review

Power-Performance Tradeoffs in Wide Dynamic Range Image Sensors with Multiple Reset Approach

1,* , 1
, 1
, 2
 and 1
1 The VLSI Systems Center, Ben-Gurion University, POB 653, Beer-Sheva 84105, Israel 2 Department of Electrical and Computer Engineering, University of Calgary, Alberta, Canada
* Author to whom correspondence should be addressed.
Received: 14 December 2010 / Revised: 4 March 2011 / Accepted: 11 March 2011 / Published: 14 March 2011
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Abstract

A variety of solutions for widening the dynamic range (DR) of CMOS image sensors have been proposed throughout the years. These solutions can be categorized into different groups according to the principle used for DR widening. One of the methods, which is based on autonomous control over the integration time, was implemented by our group. We proposed the multiple resets algorithm, which was successfully implemented in three generations of WDR image sensors. While achieving the same goal of widening the DR of the sensor, each of the implemented imagers had a different architecture, and therefore presented different performance and power figures. This paper reviews designs of the aforementioned sensors and presents a comprehensive analysis of their power consumption. Power-performance tradeoffs are also discussed. Advantages and disadvantages of each sensor are presented.
Keywords: wide dynamic range; CMOS image sensor; low power wide dynamic range; CMOS image sensor; low power
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Spivak, A.; Teman, A.; Belenky, A.; Yadid-Pecht, O.; Fish, A. Power-Performance Tradeoffs in Wide Dynamic Range Image Sensors with Multiple Reset Approach. J. Low Power Electron. Appl. 2011, 1, 59-76.

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J. Low Power Electron. Appl. EISSN 2079-9268 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert