
Proceedings Paper
Speckle noise removal in interference fringes by optoelectronic preprocessing with Epson liquid crystal televisionFormat | Member Price | Non-Member Price |
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Paper Abstract
An optical implementation of real-time preprocessing of interference fringes is demonstrated using Epson light crystal
television (LCTV) working as a spatial matched filter in an optical correlation setup. Two methods of optical smoothing for
speckle noise removal using both the hybrid modulations of the LCTV were studied. One of these methods is based on the
diffraction properties of a sinusoidal phase grating addressed on the modulator. The second one is a global filter operating
like a transparency to eliminate speckle spectral components in the input image spectrum. Preliminary results are illustrated
by representative examples.
Paper Details
Date Published: 17 July 1996
PDF: 9 pages
Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); doi: 10.1117/12.276298
Published in SPIE Proceedings Vol. 2860:
Laser Interferometry VIII: Techniques and Analysis
Malgorzata Kujawinska; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)
PDF: 9 pages
Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); doi: 10.1117/12.276298
Show Author Affiliations
Bertrand Trolard, Worcester Polytechnic Institute and Univ. de Franche-Comte (United States)
Christophe Gorecki, Univ. de Franche-Comte (France)
Christophe Gorecki, Univ. de Franche-Comte (France)
Gilbert M. Tribillon, Univ. de Franche-Comte (France)
Published in SPIE Proceedings Vol. 2860:
Laser Interferometry VIII: Techniques and Analysis
Malgorzata Kujawinska; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)
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