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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 15 — Jul. 29, 2013
  • pp: 17586–17591

Displaying a high-resolution digital hologram on a low-resolution spatial light modulator with the same resolution obtained from the hologram

P.W.M. Tsang, T.-C. Poon, and C. Zhou  »View Author Affiliations


Optics Express, Vol. 21, Issue 15, pp. 17586-17591 (2013)
http://dx.doi.org/10.1364/OE.21.017586


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Abstract

In this paper, a fast method for displaying a digital, real and off-axis Fresnel hologram on a lower resolution device is reported. Preserving the original resolution of the hologram upon display is one of the important attributes of the proposed method. Our method can be divided into 3 stages. First, a digital hologram representing a given three dimensional (3D) object is down-sampled based on a fix, jitter down-sampling lattice. Second, the down-sampled hologram is interpolated, through pixel duplication, into a low resolution hologram that can be displayed with a low-resolution spatial light modulator (SLM). Third, the SLM is overlaid with a grating which is generated based on the same jitter down-sampling lattice that samples the hologram. The integration of the grating and the low-resolution hologram results in, to a good approximation, the resolution of the original hologram. As such, our proposed method enables digital holograms to be displayed with lower resolution SLMs, paving the way for the development of low-cost holographic video display.

© 2013 OSA

OCIS Codes
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: May 8, 2013
Revised Manuscript: June 18, 2013
Manuscript Accepted: July 6, 2013
Published: July 16, 2013

Citation
P.W.M. Tsang, T.-C. Poon, and C. Zhou, "Displaying a high-resolution digital hologram on a low-resolution spatial light modulator with the same resolution obtained from the hologram," Opt. Express 21, 17586-17591 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-15-17586


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