17 August 1998 Improving the recognition ability of the photorefractive correlator by using an extensive complementary encoding
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Proceedings Volume 3554, Photorefractive Materials: Phenomena and Related Applications II; (1998); doi: 10.1117/12.318119
Event: Photonics China '98, 1998, Beijing, China
Abstract
In this paper, we apply an extensive complementary encoding method, which has already been successfully used in an incoherent optical correlator based real-time target recognition processor to improve its discrimination ability, to a photorefractive crystal based Vander Lugt matched filter correlator for the same purpose. In this method, an original image and its complement image are regularly combined into an encoded image. The encoding process is applied to both the database images and the input target. The experimental results have proved that by using the extensive complementary encoding method, the discrimination ability of the photorefractive correlators can be improved effectively in a simple way.
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Haisong Liu, Minxian Wu, Guofan Jin, Gang Chen, Qingsheng He, Yingbai Yan, "Improving the recognition ability of the photorefractive correlator by using an extensive complementary encoding", Proc. SPIE 3554, Photorefractive Materials: Phenomena and Related Applications II, (17 August 1998); doi: 10.1117/12.318119; https://doi.org/10.1117/12.318119
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KEYWORDS
Computer programming

Photorefractive correlators

Image processing

Databases

Crystals

Optical correlators

Optical pattern recognition

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