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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 9 — Apr. 25, 2011
  • pp: 8750–8761

Cell-based hardware architecture for full-parallel generation algorithm of digital holograms

Young-Ho Seo, Hyun-Jun Choi, Ji-Sang Yoo, and Dong-Wook Kim  »View Author Affiliations


Optics Express, Vol. 19, Issue 9, pp. 8750-8761 (2011)
http://dx.doi.org/10.1364/OE.19.008750


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Abstract

This paper proposes a new hardware architecture to speed-up the digital hologram calculation by parallel computation. To realize it, we modify the computer-generated hologram (CGH) equation and propose a cell-based very large scale integrated circuit architecture. We induce a new equation to calculate the horizontal or vertical hologram pixel values in parallel, after finding the calculation regularity in the horizontal or vertical direction from the basic CGH equation. We also propose the architecture of the computer-generated hologram cell consisting of an initial parameter calculator and update-phase calculators based on the equation, and then implement them in hardware. Modifying the equation could simplify the hardware, and approximating the cosine function could optimize the hardware. In addition, we show the hardware architecture to parallelize the calculation in the horizontal direction by extending computer-generated holograms. In the experiments, we analyze hardware resource usage and the performance-capability characteristics of the look-up table used in the computer-generated hologram cell. These analyses make it possible to select the amount of hardware to the precision of the results. Here, we used the platform from our previous work for the computer-generated hologram kernel and the structure of the processor.

© 2011 OSA

OCIS Codes
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: January 4, 2011
Revised Manuscript: March 31, 2011
Manuscript Accepted: April 11, 2011
Published: April 20, 2011

Citation
Young-Ho Seo, Hyun-Jun Choi, Ji-Sang Yoo, and Dong-Wook Kim, "Cell-based hardware architecture for full-parallel generation algorithm of digital holograms," Opt. Express 19, 8750-8761 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-9-8750


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References

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