Binary encoding of gray scale nonlinear joint transform correlators
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机译:灰度非线性联合变换相关器的二进制编码
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摘要
A joint Fourier transform optical correlator is disclosed which can have varying degrees of nonlinearity and yet employ a readily available binary spatial light modulator for producing the correlation output light signal in conjunction with a Fourier transform lens. The nonlinearly transformed joint power spectrum is binarized utilizing a multiple level threshold function which can vary from one pixel to the next.
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