Experimental implementation of a Wiener filter in a hybrid digital--optical correlator
We present the implementation of a clutter-tolerant filter in a hybrid correlator system. Wiener filters were mapped with a complex encoding technique onto a smectic A(*) liquid-crystal spatial light modulator (SLM). The technique overcomes the problem of representing high-dynamic-range data on SLM&...
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Published in | Optics letters Vol. 26; no. 8; p. 494 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
15.04.2001
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Online Access | Get more information |
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Summary: | We present the implementation of a clutter-tolerant filter in a hybrid correlator system. Wiener filters were mapped with a complex encoding technique onto a smectic A(*) liquid-crystal spatial light modulator (SLM). The technique overcomes the problem of representing high-dynamic-range data on SLM's that have limited modulation capabilities. It also provides a compact image recognition system that is robust enough for many real-world applications. Experimental results are presented. |
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ISSN: | 0146-9592 |
DOI: | 10.1364/OL.26.000494 |