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Application of a logarithmic complementary metal–oxide–semiconductor camera in white-light interferometry

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dc.contributor.author Egan, Patrick
dc.contributor.author Lakestani, Fereydoun
dc.contributor.author Whelan, Maurice P.
dc.contributor.author Connelly, Michael J.
dc.date.accessioned 2011-07-12T09:51:22Z
dc.date.available 2011-07-12T09:51:22Z
dc.date.issued 2008
dc.identifier.uri http://hdl.handle.net/10344/1085
dc.description peer-reviewed en_US
dc.description.abstract This paper describes the characterization, modeling, and application of a direct-readout complementary metal–oxide–semiconductor (CMOS) camera in white-light interferometry (WLI). The camera that was used consisted of a direct-readout 1024 × 1024 pixel logarithmic CMOS sensor. A continuous analog voltage from each pixel was converted to an 8-bit value by an internal analog-to-digital converter and processed with a digital signal processor. A mathematical model relating the input light intensity to the 8-bit digitized output is developed, which is critical in applications where knowledge of the scene intensity is essential to estimating the maximum allowable frame rates. The camera was utilized in WLI, and its application is analyzed in terms of maximum output signal amplitude, imaging speed, and light intensity. The mathematical modeling is implemented with SPICE simulations and verified with experimental data. en_US
dc.language.iso eng en_US
dc.publisher IEEE Computer Society en_US
dc.relation.ispartofseries IEEE Transactions on Instrumentation and Measurement;57/ 1/ pp.134-139
dc.relation.uri http://dx.doi.org/10.1109/TIM.2007.907962
dc.rights ©2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
dc.subject calibration en_US
dc.subject CMOSFET en_US
dc.subject optical interferometry en_US
dc.subject machine vision en_US
dc.title Application of a logarithmic complementary metal–oxide–semiconductor camera in white-light interferometry en_US
dc.type Article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.type.restriction none en
dc.internal.rssid 1129274


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