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Proceedings Paper

Characterization Of Periodicities In Images By A Video Optical Feedback Method
Author(s): Jacques P. Fleuret; A. Clainchard; H. Maitre
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Paper Abstract

We propose a hybrid method to detect, in real time, simple periodical structures. The method is based on a video-optical feedback system which is well adapted to the probleme since, in each feedback loop, the pattern under study is shifted in a given way. The global transfer function of such a system depends both on time and space parameters. After a theoretical study of the stability conditions of the loop, we analyse the effect of non linearities on the global contrast as a function of spatial frequency. An experimental verification of these properties is obtained with a test pattern.

Paper Details

Date Published: 26 October 1983
PDF: 4 pages
Proc. SPIE 0397, Applications of Digital Image Processing V, (26 October 1983); doi: 10.1117/12.935285
Show Author Affiliations
Jacques P. Fleuret, Ecole Nationale Superieure des Telecommunications (France)
A. Clainchard, Ecole Nationale Superieure des Telecommunications (France)
H. Maitre, Ecole Nationale Superieure des Telecommunications (France)


Published in SPIE Proceedings Vol. 0397:
Applications of Digital Image Processing V
Andre J. Oosterlinck; Andrew G. Tescher, Editor(s)

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