Demonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS camera

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dc.contributor.authorRiza, Nabeel A.
dc.contributor.authorLa Torre, Juan Pablo
dc.date.accessioned2020-07-14T09:21:33Z
dc.date.available2020-07-14T09:21:33Z
dc.date.issued2016-12-12
dc.date.updated2020-07-14T09:17:22Z
dc.description.abstractFor the first time, proposed and demonstrated is a simultaneous dual optical band coded access optical sensor (CAOS) camera design suited for extreme contrast multispectral bright target scenarios. Deploying a digital micromirror devices (DMDs)-based time-frequency agile pixels CAOS-mode within a two point detector spatially and spectrally isolating framework, this imager simultaneously and independently detects pixel selective image information for two different broad spectral bands that further undergo independent spectral image data extraction via finer-tuned wavelength filtering using all-optical or CAOS-mode electronic filters. A proof-of-concept visible-near infrared band CAOS imager is successfully demonstrated using a target scene containing LEDs and engaging narrowband optical filters. In addition, using the CAOS-mode, demonstrated is the RF domain simultaneous color content monitoring of a white light LED image pixel. Also proposed is the use of a higher bit count analog-to-digital converter (ADC) with both range and sampling duration parameter control along with a larger data set electronic DSP to extract higher DSP gain and realize additional noise suppression. Using a 16-bit ADC and 2,097,152 point fast Fourier transform (FFT) digital signal processing (DSP) for a 633 nm laser engaged test target scene that is subject to nearly 7 decades (107) of gradual optical attenuation, the experimental camera demonstrates an agile pixel extreme dynamic range of 136 dB, which is a 56 dB improvement over the previous CAOS-imaging demonstrations.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRiza, N. A. and La Torre, J. P. (2016) 'Demonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS camera', Optics Express, 24, pp. 29427-29443. doi: 10.1364/OE.24.029427en
dc.identifier.doi10.1364/OE.24.029427en
dc.identifier.endpage29443en
dc.identifier.issn1094-4087
dc.identifier.journaltitleOptics Expressen
dc.identifier.startpage29427en
dc.identifier.urihttps://hdl.handle.net/10468/10246
dc.identifier.volume24en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.relation.urihttps://www.osapublishing.org/oe/fulltext.cfm?uri=oe-24-26-29427&id=356010
dc.rights© 2016 Optical Society of Americaen
dc.subjectDigital signal processingen
dc.subjectAnalog to digital conversionen
dc.subjectCamerasen
dc.subjectDigital devicesen
dc.subjectFast Fourier transformsen
dc.subjectImage processingen
dc.subjectInformation filteringen
dc.subjectInfrared devicesen
dc.subjectLight emitting diodesen
dc.subjectPixelsen
dc.subjectSignal processingen
dc.subjectSpectroscopyen
dc.subjectMicromirroren
dc.subjectOptical sensoren
dc.subjectDynamic rangeen
dc.titleDemonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS cameraen
dc.typeArticle (peer-reviewed)en
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