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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 17, Iss. 9 — Sep. 1, 2000
  • pp: 1606–1616

Improved-fidelity error diffusion through blending with pseudorandom encoding

Li Ge, Markus Duelli, and Robert W. Cohn  »View Author Affiliations


JOSA A, Vol. 17, Issue 9, pp. 1606-1616 (2000)
http://dx.doi.org/10.1364/JOSAA.17.001606


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Abstract

Error diffusion (ED) and pseudorandom encoding (PRE) methods of designing Fourier transform holograms are compared in terms of their properties and the optical performance of the resulting far-field diffraction patterns. Although both methods produce a diffuse noise pattern due to the error between the desired fully complex pattern and the encoded modulation, the PRE errors reconstruct uniformly over the nonredundant bandwidth of the discrete-pixel spatial light modulator, while the ED errors reconstruct outside the window of the designed diffraction pattern. Combining the two encoding methods produces higher-fidelity diffraction patterns than either method produces individually. For some designs the fidelity of the ED–PRE algorithm is even higher over the entire nonredundant bandwidth than for the previously reported [J. Opt. Soc. Am. A 16, 2425 (1999)] minimum-distance-PRE algorithm.

© 2000 Optical Society of America

OCIS Codes
(030.6600) Coherence and statistical optics : Statistical optics
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(090.1760) Holography : Computer holography
(230.6120) Optical devices : Spatial light modulators

History
Original Manuscript: December 17, 1999
Revised Manuscript: May 8, 2000
Manuscript Accepted: May 8, 2000
Published: September 1, 2000

Citation
Li Ge, Markus Duelli, and Robert W. Cohn, "Improved-fidelity error diffusion through blending with pseudorandom encoding," J. Opt. Soc. Am. A 17, 1606-1616 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-9-1606

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