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Proceedings Paper

Performance of pyramidal phase-only filtering of infrared imagery
Author(s): Samuel Peter Kozaitis; Robert Petrilak
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Paper Abstract

Infrared imagery of 512 X 512 pixels was processed with 128 X 128 arrays by computer simulations of optical correlation. Pyramidal processing using binary phase-only filters was used to process an entire image in parallel at different resolutions. Morphological processing was used to create an image pyramid so that only binary processing was used. The descent policy (processing path to a different level of the pyramid) for optical processing was found to be simpler than that of template matching in digital image processing. Results showed that approximate indications of whether an object is present in a scene can be determined quickly. Further processing generally revealed more precise information. Furthermore, in-class objects present within an image but not exactly matching the filter did not necessarily produce more precise information upon further processing. The termination level of the processing technique is nontrivial and may not be the highest resolution level in some cases.

Paper Details

Date Published: 1 November 1991
PDF: 11 pages
Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); doi: 10.1117/12.49729
Show Author Affiliations
Samuel Peter Kozaitis, Florida Institute of Technology (United States)
Robert Petrilak, Florida Institute of Technology (United States)


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

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