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Proceedings Paper

Analysis of the phase-only filter
Author(s): Jeffrey A. Davis; Don M. Cottrell; Roderick P. Tiangco
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Paper Abstract

The phase-only filter is of great interest for optical pattern recognition applications because of its sensitivity and because it can easily be programmed onto spatial light modulators. In evaluating the suitability of this filter for a correlator, it is useful to understand the impulse response function that is actually being correlated with the input function. In this research, we derive an analytic expression for the impales response function for the phase-only filter corresponding to a one-dimensional rectangle function. We show that this impulse response function represents a bipolar edge-enhanced version of the input function. This can be easily generalized to a two-dimensional box function. Experimental results verify the analysis.

Paper Details

Date Published: 28 March 1995
PDF: 11 pages
Proc. SPIE 2490, Optical Pattern Recognition VI, (28 March 1995); doi: 10.1117/12.205808
Show Author Affiliations
Jeffrey A. Davis, San Diego State Univ. (United States)
Don M. Cottrell, San Diego State Univ. (United States)
Roderick P. Tiangco, San Diego State Univ. (United States)

Published in SPIE Proceedings Vol. 2490:
Optical Pattern Recognition VI
David P. Casasent; Tien-Hsin Chao, Editor(s)

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