26 July 1993 Improved performance of joint transform correlators in the presence of colored noise
Author Affiliations +
Proceedings Volume 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology; 198346 (1993) https://doi.org/10.1117/12.2308569
Event: 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1993, Budapest, Hungary
Abstract
Joint transform correlator [1] (JTC), using spatial light modulators (SLMs) for the display of the input plane and the joint transform (JT) plane, provides real-time correlation capabilities for optical pattern recognition. Display of the JT plane on a binary SLM, requires binarization of the joint power spectrum function. Means for improving the JTC performance are presented, where the joint power spectrum function is modified prior to an error-diffusion binarization stage, when colored (non-white) noise is present in the input scene. Mathematical analysis, computer simulations and experimental results are presented.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hanni Inbar, Hanni Inbar, } "Improved performance of joint transform correlators in the presence of colored noise", Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 198346 (26 July 1993); doi: 10.1117/12.2308569; https://doi.org/10.1117/12.2308569
PROCEEDINGS
2 PAGES


SHARE
Back to Top