A method for extracting object related information from in-line holograms using Wigner distribution

buir.advisorOnural, Levent
dc.contributor.authorÖzgen, Mehmet Tankut
dc.date.accessioned2016-01-08T20:08:40Z
dc.date.available2016-01-08T20:08:40Z
dc.date.issued1990
dc.descriptionAnkara : The Department of Electrical and Electronics Engineering and Institute of Engineering and Sciences of Bilkent Univ., 1990.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 1990.en_US
dc.descriptionIncludes bibliographical refences.en_US
dc.description.abstractIn this thesis, a method based on Wigner distribution is developed to find the three-dimensional coordinates of particles directly from their in-line hologram without reconstruction. If a one-dimensional discrete hologram signed is subtracted from unity and the discrete-time Wigner distribution of the resulting signal is computed then a two-dimensional real sequence is obtained which can be displayed as an image carrying coordinate information about the objects encoded in the hologram. In order to analyze three-dimensional object distributions, the idea described above is adapted to the case of twodimensional holograms in the following way. A two-dimensional hologrcim is digitized in an image processing system, then, one of its rows or columns is selected and a DC level shift is given to thcit row or column. The discrete-time Wigner distribution of the resulting one-dimensional signal is computed and displayed as a two-dimensional image. If this is done for a sufficient number of rows and columns of the hologram then a set of images is obtained which contaixas the total information about the coordinates of particles encoded in the hologram.en_US
dc.description.provenanceMade available in DSpace on 2016-01-08T20:08:40Z (GMT). No. of bitstreams: 1 1.pdf: 78510 bytes, checksum: d85492f20c2362aa2bcf4aad49380397 (MD5)en
dc.description.statementofresponsibilityÖzgen, Mehmet Tankuten_US
dc.format.extentix, 53 leaves, illustrationsen_US
dc.identifier.urihttp://hdl.handle.net/11693/17261
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectIn-line hologramsen_US
dc.subjectrecohstructionen_US
dc.subjectWigner diotriixutionen_US
dc.subjectdiscrete-time Wigner distributionen_US
dc.subject.lccTA1540 .O94 1990en_US
dc.subject.lcshHolography.en_US
dc.subject.lcshWigner distribution.en_US
dc.titleA method for extracting object related information from in-line holograms using Wigner distributionen_US
dc.typeThesisen_US
thesis.degree.disciplineElectrical and Electronic Engineering
thesis.degree.grantorBilkent University
thesis.degree.levelMaster's
thesis.degree.nameMS (Master of Science)

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