Coded access optical sensor (CAOS) imager and applications

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

Starting in 2001, we proposed and extensively demonstrated (using a DMD: Digital Micromirror Device) an agile pixel Spatial Light Modulator (SLM)-based optical imager based on single pixel photo-detection (also called a single pixel camera) that is suited for operations with both coherent and incoherent light across broad spectral bands. This imager design operates with the agile pixels programmed in a limited SNR operations starring time-multiplexed mode where acquisition of image irradiance (i.e., intensity) data is done one agile pixel at a time across the SLM plane where the incident image radiation is present. Motivated by modern day advances in RF wireless, optical wired communications and electronic signal processing technologies and using our prior-art SLM-based optical imager design, described using a surprisingly simple approach is a new imager design called Coded Access Optical Sensor (CAOS) that has the ability to alleviate some of the key prior imager fundamental limitations. The agile pixel in the CAOS imager can operate in different time-frequency coding modes like Frequency Division Multiple Access (FDMA), Code-Division Multiple Access (CDMA), and Time Division Multiple Access (TDMA). Data from a first CAOS camera demonstration is described along with novel designs of CAOS-based optical instruments for various applications.

Original languageEnglish
Title of host publicationOptics, Photonics and Digital Technologies for Imaging Applications IV
EditorsFrederic Truchetet, Peter Schelkens, Touradj Ebrahimi, Gabriel Cristobal, Pasi Saarikko
PublisherSPIE
ISBN (Electronic)9781510601413
DOIs
Publication statusPublished - 2016
EventOptics, Photonics and Digital Technologies for Imaging Applications IV - Brussels, Belgium
Duration: 5 Apr 20166 Apr 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9896
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptics, Photonics and Digital Technologies for Imaging Applications IV
Country/TerritoryBelgium
CityBrussels
Period5/04/166/04/16

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