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Proceedings Paper

Purely real correlation filters
Author(s): Abhijit Mahalanobis; Sewoong Song
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Paper Abstract

A general algorithm for synthesizing purely real correlation filters in the frequency domain is developed using the method of Lagrange multipliers. This method can be applied to filters which can be derived using linearly constrained quadratic minimization. Purely real minimum average correlation energy (MACE) filters are synthesized to illustrate our approach. Their performance is found to be comparable to original complex MACE filters. The main advantage of our approach is the generation of purely real filters which can be easily implemented in spatial light modulators without holograms and yield the correlation output on the zero-order beam.

Paper Details

Date Published: 1 November 1991
PDF: 8 pages
Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); doi: 10.1117/12.49692
Show Author Affiliations
Abhijit Mahalanobis, Univ. of Maryland (United States)
Sewoong Song, Univ. of Maryland (United States)

Published in SPIE Proceedings Vol. 1564:
Optical Information Processing Systems and Architectures III
Bahram Javidi, Editor(s)

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