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      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
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      Signal processing issues in diffraction and holographic 3DTV

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      Author(s)
      Onural, Levent
      Özaktaş, Haldun M.
      Date
      2005
      Source Title
      Proceedings of the 13th European Signal Processing Conference, EUSIPCO 2005
      Publisher
      IEEE
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      Image capture and image display will most likely be decoupled in future 3DTV systems. For this reason, as well as the need to convert abstract representations to display driver signals, and the need to explicitly consider diffraction and propagation effects, it is expected that signal processing issues will play a fundamental role in achieving 3DTV operation. Since diffraction between two parallel planes is equivalent to a 2D linear shift-invariant system, various signal processing techniques play an important role. Diffraction between tilted planes can also be modeled as a relatively simple system, leading to efficient discrete computations. Two fundamental problems are digital computation of the optical field due to a 3D object, and finding the driver signals for a given optical device so as to generate the desired optical field in space. The discretization of optical signals leads to several interesting issues; for example, it is possible to violate the Nyquist rate while sampling, but still maintain full reconstruction. The fractional Fourier transform is another signal processing tool which finds application in optical wave propagation.
      Keywords
      3D object
      Abstract representation
      Digital computation
      Discretizations
      Display driver
      Fractional Fourier transforms
      Image captures
      Image display
      Linear shift-invariant systems
      Nyquist rate
      Optical field
      Optical signals
      Optical wave propagation
      Parallel planes
      Propagation effect
      Signal processing technique
      Simple system
      Tilted planes
      Diffraction
      Invariance
      Signal processing
      Permalink
      http://hdl.handle.net/11693/27359
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      • Department of Electrical and Electronics Engineering 3702
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