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Proceedings Paper

Coherent Optical Correlation For Defocused Images Recognition
Author(s): Paolo Sirotti; Ennio Tofful
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Paper Abstract

Deblurring images affected by severe focus defeat gives often poor results. A coherent optical method, the joint Fourier transform correlation, is suggested for the recognition of defocused images. Basing on the symmetry of the crosscorrelation function between an out-of-focus and the in-focus image, the recognition may be attempted simply correlating the unknown out-of-focus image with a set of reference in-focus images.

Paper Details

Date Published: 2 March 1989
PDF: 7 pages
Proc. SPIE 1027, Image Processing II, (2 March 1989); doi: 10.1117/12.950289
Show Author Affiliations
Paolo Sirotti, University of Trieste (Italy)
Ennio Tofful, University of Trieste (Italy)


Published in SPIE Proceedings Vol. 1027:
Image Processing II
Peter J.S. Hutzler; Andre J. Oosterlinck, Editor(s)

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