Optical Digital Incoherent Image-Processing For Extended Depth Of Field

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dc.contributorVirginia Techen
dc.contributor.authorPoon, Ting-Chungen
dc.contributor.authorMotamedi, M.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessed2014-02-24en
dc.date.accessioned2014-04-04T15:12:24Zen
dc.date.available2014-04-04T15:12:24Zen
dc.date.issued1987-08-01en
dc.description.abstractFor a severely defocused incoherent system, its optical transfer function (OTF) has isolated zeros; therefore, an exact inverse filtering cannot be performed. Isolated zeros in the OTF can be avoided by choosing an annular aperture with a proper radius ratio, as the aperture can extend the depth of focus of the system. However, in the process of increasing the depth of focus of the system, this method results in a loss of image contrast. A simple hybrid optical/digital image processing system in which a TV camera device is coupled with an annular aperture is considered. Annular-pass filtering to compensate for the loss of contrast is performed by a digital computer. Experimental results are presented.en
dc.description.sponsorshipFiber and Electro-Optics Research Center at Virginia Techen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTing-Chung Poon and Masoud Motamedi, "Optical/digital incoherent image processing for extended depth of field," Appl. Opt. 26, 4612-4615 (1987). doi: 10.1364/AO.26.004612en
dc.identifier.doihttps://doi.org/10.1364/AO.26.004612en
dc.identifier.issn0003-6935en
dc.identifier.urihttp://hdl.handle.net/10919/46943en
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-26-21-4612en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleOptical Digital Incoherent Image-Processing For Extended Depth Of Fielden
dc.title.serialApplied Opticsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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