Multichannel wavelet correlators by the use of associative storage in a photorefractive material

Wenyi Feng; Gaogui Huang; Yingbai Yan; Guofan Jin; Minxian Wu

doi:10.1117/12.318115

17 August 1998 Multichannel wavelet correlators by the use of associative storage in a photorefractive material

Wenyi Feng, Gaogui Huang, Yingbai Yan, Guofan Jin, Minxian Wu

Proceedings Volume 3554, Photorefractive Materials: Phenomena and Related Applications II; (1998) https://doi.org/10.1117/12.318115
Event: Photonics China '98, 1998, Beijing, China

Abstract

The theory of wavelet correlation and the associative characteristic of volume holographic storage in a photorefractive crystal were introduced to construct a novel multichannel wavelet correlator. With a spherical wave as the reference beam, the system was more compact and easy to be miniaturized and utilized. Its application in fingerprint identification was studied, and experimental results were given.

Citation Download Citation

Wenyi Feng, Gaogui Huang, Yingbai Yan, Guofan Jin, and Minxian Wu "Multichannel wavelet correlators by the use of associative storage in a photorefractive material", Proc. SPIE 3554, Photorefractive Materials: Phenomena and Related Applications II, (17 August 1998); https://doi.org/10.1117/12.318115

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