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Journal of Electronic Imaging

Interactive computation of holograms using a look-up table
Author(s): Mark E. Lucente
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Paper Abstract

Several methods of increasing the speed and simplicity of the computation of off-axis transmission holograms are presented, with applications to the real-time display of holographic images. The bipolar intensity approach allows for the real-valued linear summation of interference fringes, a factor of 2 speed increase, and the elimination of image noise caused by object self-interference. An order of magnitude speed increase is obtained through the use of a precomputed look-up table containing a large array of elemental interference patterns corresponding to point source contributions from each of the possible locations in image space. Results achieved using a data-parallel supercomputer to compute horizontal-parallax-only holographic patterns containing six megasamples indicate that an image comprised of 10,000 points with arbitrary brightness (gray scale) can be computed in under 1 s. Implemented on a common workstation, the look-up table approach increases computation speed by a factor of 43.

Paper Details

Date Published: 1 January 1993
PDF: 7 pages
J. Electron. Imaging. 2(1) doi: 10.1117/12.133376
Published in: Journal of Electronic Imaging Volume 2, Issue 1
Show Author Affiliations
Mark E. Lucente, Massachusetts Institute of Technology (United States)

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