论文信息 - Acousto-photorefractive holographic interferometric correlator for progressive pattern recognition using wavelet transforms

Acousto-photorefractive holographic interferometric correlator for progressive pattern recognition using wavelet transforms

In this paper, we describe how a photorefractive holographic interferometer may be modified to implement the wavelet transform. By placing phase-only spatial light modulators, such as acousto-optic devices, in the optical path of the sample and reference beams, it is possible to perform correlations on the phase modulated signals and then convert them into intensity modulated signals for detection and signal processing. We discuss a potential application of this architecture known as progressive pattern recognition using the wavelet transform.

Barry L. Shoop | Casimer M. DeCusatis | Pankaj K. Das | Daniel M. Litynski

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