A 100-dB-DR predictive-integration CMOS image sensor for laser rangefinding

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DOIResolve DOI: http://doi.org/10.1109/TED.2009.2030655
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TypeArticle
Journal titleIEEE Transactions on Electronic Devices
Volume56
Issue12
Pages29872994; # of pages: 8
SubjectCMOS image sensors; laser ranging; CMOS active pixel sensor (APS); high dynamic range (HDR); predictive integration; winner-take-all (WTA); 3-D vision system
AbstractA CMOS image sensor for laser-spot detection in an optical triangulation-based 3-D vision system is presented in this paper. Two aligned linear arrays, namely, a high-dynamic-range (DR) array and a winner-take-all array, independently perform DR enhancement and region-of-interest control. A new predictive integration scheme is suggested to find the adaptive integration time without searching all possible subintegration periods. It has been demonstrated that the DR of the chip (typically ∼50 dB in the 0.18-μm digital process used) can be enhanced to 100 dB with six subintegration periods.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Information Technology
Peer reviewedYes
NPARC number15261142
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Record identifierb8c9c110-e285-43e5-9b54-fc1b1b3cf204
Record created2010-06-10
Record modified2016-05-09
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