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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/454

Title: Pattern discrimination using wavelet filters in a photorefractive joint-transform correlator
Authors: Tripathi, Renu
Joseph, Joby
Singh, K
Keywords: Wavelet transform
Photorefractives
Joint transform correlator
Pattern recognition
Issue Date: 1997
Citation: Optics Communications, 143(1-3), 5-10
Abstract: We propose and demonstrate the use of wavelet filters for pattern discrimination in a photorefractive (PR) joint-transform correlator. A PR BaTiO3 crystal has been used to record the joint power spectrum in real-time. Wavelet filters are generated in the form of a filter bank and are projected serially onto the crystal, using a liquid crystal spatial light modulator (SLMJ.Choice of a suitable filter offers a high degree of pattern discrimination.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/454
Appears in Collections:Physics

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