29 April 1999 Optical joint transform correlator for multiple patterns
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Proceedings Volume 3729, Selected Papers from International Conference on Optics and Optoelectronics '98; (1999) https://doi.org/10.1117/12.346784
Event: Selected Papers from the International Conference on Optics and Optoelectronics, 1998, Dehradun, India
Abstract
A subtracted joint transform correlator, a kind of nonlinear joint transform correlator, was investigated and constructed using only optical components. In the correlator, a holographic interferometer was used for subtracting an obstructive power spectrum from the joint power spectrum of the input image that consisted of an object pattern and multiple reference patterns. A photorefractive crystal was used as a hologram recorder. At the same time, in a hybrid nonlinear joint transform correlator, demands for the dynamic ranges of a spatial light modulator and a photometric measurement device were investigated by computer simulations.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takumi Minemoto, Takumi Minemoto, } "Optical joint transform correlator for multiple patterns", Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); doi: 10.1117/12.346784; https://doi.org/10.1117/12.346784
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