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Proceedings Paper

Image Subtraction by Holographic Storage in Photorefractive BTO Crytals
Author(s): Svetla Zhivkova; Margarita Miteva
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Paper Abstract

Holographic subtraction of two images was first realized by Gabor et al-1 by using a successive recording of the two images with a 180 degree phase shift between them and subsequent readout of the composite hologram. Other techniques for image subtraction are proposed2-5 . In Ref. 2 the ,rr phase shift between the image complex fields is ensured by spatially modulation of the images by periodic waves that are themselves 180 deg out of phase. Phase conjugation and Stokes' relation are also used3'4 . In Ref. 5 subtraction is fulfilled by the help of two orthogonal lineary polarized waves.

Paper Details

Date Published: 12 April 1990
PDF: 4 pages
Proc. SPIE 1183, Holography '89, (12 April 1990); doi: 10.1117/12.963819
Show Author Affiliations
Svetla Zhivkova, Central Laboratory for Optical Storage and Processing of Information (Bulgaria)
Margarita Miteva, Central Laboratory for Optical Storage and Processing of Information (Bulgaria)


Published in SPIE Proceedings Vol. 1183:
Holography '89
Yuri N. Denisyuk; Tung H. Jeong, Editor(s)

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