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Proceedings Paper

Nonlinear filtering of images in optical-digital processors
Author(s): Tomasz Szoplik
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Paper Abstract

Implementations of rank order and morphological filtering in optical-digital processors are reviewed. In the processors, all of the convolutions are performed in inherently parallel optical correlators. Subsequent arithmetic and logic operations are made digitally. In the processors, gray scale images are sequentially treated slice by slice due to the threshold decomposition concept. The optical-digital method of local histogram calculation within both binary and weighted neighborhoods of arbitrary size and shape is recalled. Several configurations of optical correlators are discussed. Finally, some examples of efficient use of hybrid processors are presented.

Paper Details

Date Published: 19 January 1995
PDF: 9 pages
Proc. SPIE 2363, 5th International Workshop on Digital Image Processing and Computer Graphics (DIP-94), (19 January 1995); doi: 10.1117/12.199636
Show Author Affiliations
Tomasz Szoplik, Warsaw Univ. (Poland)


Published in SPIE Proceedings Vol. 2363:
5th International Workshop on Digital Image Processing and Computer Graphics (DIP-94)
Nikolai A. Kuznetsov; Victor A. Soifer, Editor(s)

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