Joint transform correlator by subtracting phase-modified Fourier spectrums

Hongchen Zhai

doi:10.1117/12.2299104

1 September 1996 Joint transform correlator by subtracting phase-modified Fourier spectrums

Hongchen Zhai

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 277865 (1996) https://doi.org/10.1117/12.2299104
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

We report a new experimental solution for implementing joint transform correlator (JTC) by subtracting modified Fourier spectrum described in [1], in which the authors used an additional contrast-reversed reference to enhance the expected correlation peaks for binary image processing. In our new solution, there is only a phase difference between the two reference images, and the amplitude of them, however, remain the same. Besides, our solution is generally available for the optical processing with binary images as well as with images of multiple gray levels.

Citation Download Citation

Hongchen Zhai "Joint transform correlator by subtracting phase-modified Fourier spectrums", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 277865 (1 September 1996); https://doi.org/10.1117/12.2299104

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