Thereconstruction quality improvement of holographic stereograms via variable size segmentation

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dc.citation.epage172en_US
dc.citation.spage169en_US
dc.contributor.authorŞahin, Erdemen_US
dc.contributor.authorOnural, Leventen_US
dc.contributor.authorKang, Hoonjongen_US
dc.coverage.spatialDiyarbakir, Turkeyen_US
dc.date.accessioned2016-02-08T12:21:40Z
dc.date.available2016-02-08T12:21:40Z
dc.date.issued2010en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionDate of Conference: 22-24 April 2010en_US
dc.description.abstractAs computer generated holograms becomes more common, the fast computation of holographic interference patterns in digital environment becomes a necessity. Since the computation time of holograms via Fresnel (or Rayleigh-Sommerfeld) diffraction models makes real time applications impossible, the holographic stereograms are developed to be a solution for this problem. Holographic stereograms divide the hologram plane into segments. In phase added stereograms the coordinates of 3D source points are used while calculating the diffraction field. And that enables to calculate the diffraction field with appropriate sized FFTs. Although the phase added stereograms are advantageous in terms of computation time, the quality of the reconstructed three dimensional images may not be satisfactory. The main reason is that the diffraction field of a given point source is approximated as a pure complex sinusuoid in each segment. To increase the reconstruction quality, we propose a method that uses variable sized segments, as opposed to previously developed holographic stereograms that use fixed sized segments. While approximating the diffraction field of a point source, higher frequency regions are covered with smaller segments and lower frequency regions with larger segments. As a result of this, we keep the total number of oscillations of pure sinusoidal waves constant in each segment. The simulations that we carried out for a point source show that we are able to obtain better quality reconstruction with our method. ©2010 IEEE.en_US
dc.identifier.doi10.1109/SIU.2010.5652766en_US
dc.identifier.urihttp://hdl.handle.net/11693/28476
dc.language.isoTurkishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/SIU.2010.5652766en_US
dc.source.titleSIU 2010 - IEEE 18th Signal Processing and Communications Applications Conferenceen_US
dc.subjectComputation timeen_US
dc.subjectComputer generated hologramsen_US
dc.subjectDiffraction fieldsen_US
dc.subjectDiffraction modelsen_US
dc.subjectDigital environmenten_US
dc.subjectFast computationen_US
dc.subjectFresnelen_US
dc.subjectHigher frequenciesen_US
dc.subjectHolographic interferenceen_US
dc.subjectIn-phaseen_US
dc.subjectLower frequenciesen_US
dc.subjectPoint sourcesen_US
dc.subjectQuality improvementen_US
dc.subjectRayleighen_US
dc.subjectReal-time applicationen_US
dc.subjectReconstruction qualityen_US
dc.subjectSinusoidal waveen_US
dc.subjectSource pointsen_US
dc.subjectThree dimensional imagesen_US
dc.subjectDiffractionen_US
dc.subjectHologramsen_US
dc.subjectSignal processingen_US
dc.subjectThree dimensionalen_US
dc.subjectComputer generated holographyen_US
dc.titleThereconstruction quality improvement of holographic stereograms via variable size segmentationen_US
dc.title.alternativeHolografik stereogramlarin değişken boyutlu bölütler kullanilarak geri ç atim kalitelerinin arttirilmasien_US
dc.typeConference Paperen_US
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Thereconstruction quality improvement of holographic stereograms via variable size segmentation [Holografik stereogramlarin deǧişken boyutlu bölütler kullanilarak geri ç atim kalitelerinin arttirilmasi].pdf
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