Abstract

In optical data processing the quality of the output image is usually degraded by diffraction noise generated by the optical components of the system. The suitability of previously suggested techniques to a dc spatial filtering processor is discussed. A new system is proposed that overcomes the problems of the previous noise suppression techniques. Experimental results of the new system are presented along with a determination of the resolution of the system. The errors and limits of the new coherent noise suppression system are discussed.

© 1974 Optical Society of America

Coherent Optical Noise Suppression

C. E. Thomas
Appl. Opt. 7(3) 517-522 (1968)

Matched Filter Optical Processor

Wai-Hon Lee and Milton O. Greer
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Noise Suppression in Coherent Imaging

Juris Upatnieks and Robert W. Lewis
Appl. Opt. 12(9) 2161-2166 (1973)

Coherent-optic suppression of scratch noise on optical sound records

M. E. Zhabotinski, A. A. Lapides, and A. I. Shpuntov
Appl. Opt. 22(24) 4020-4027 (1983)

Reflection Holographic Filters for Compacting Optical Processors

G. C. Righini, V. Russo, and S. Sottini
Appl. Opt. 13(5) 1019-1022 (1974)