Reduction of coherent artifacts in dynamic holographic three-dimensional displays by diffraction-specific pseudorandom diffusion
Optics Letters, Vol. 29, Issue 6, pp. 611-613 (2004)
http://dx.doi.org/10.1364/OL.29.000611
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Abstract
An electroholographic display based on diffraction-specific computation can reduce speckle by electronic diffusion through selective addition of a pseudorandom sequence. Intensity fluctuation as a result of the introduction of pseudorandom noise does not affect three-dimensional (3-D) images significantly since spatial windows formed by diffused basis fringes do not widen noticeably at low pseudorandom spread, whereas the features of the fluctuation are much smaller than human visual resolution. Experimental results obtained on the Massachusetts Institute of Technology holographic video system confirmed that the diffusion smooths 3-D images and improves the intensity nonuniformity among horizontal holographic lines.
© 2004 Optical Society of America
OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(090.1760) Holography : Computer holography
(110.4280) Imaging systems : Noise in imaging systems
Citation
Donghyun Kim, "Reduction of coherent artifacts in dynamic holographic
three-dimensional displays by diffraction-specific pseudorandom
diffusion," Opt. Lett. 29, 611-613 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-6-611
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