25 August 1998 Improvement of the performance of optical correlator by using fuzzy theory
Author Affiliations +
In this paper, based on fuzzy theory, we had discussed the principle and technique of gray-tone image recognition and proposed a novel template-matching structure using optical correlator. In this novel method, a fuzzy relationship matrix, which was constructed by triangle fuzzy set, had been defined to describe the characteristics of gray-tone pixel matching. A changeable m-bit cycle-encoding method has been introduced to realize the fuzzy relation pixel-matching on a correlator structure. We also discussed how to select m correctly for different distortion in gray-level object recognition. This new method improved the performance of the usual optical correlators and got the best balance between the spatial-band width and the processing accuracy. According to this method the optical experimental results are obtained by using an incoherent correlator. We had built up a compact incoherent correlator for gray-tone object recognition.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gang Cheng, Gang Cheng, Guofan Jin, Guofan Jin, Minxian Wu, Minxian Wu, Haisong Liu, Haisong Liu, Qingsheng He, Qingsheng He, ShiFu Yuan, ShiFu Yuan, } "Improvement of the performance of optical correlator by using fuzzy theory", Proc. SPIE 3388, Advances in Optical Information Processing VIII, (25 August 1998); doi: 10.1117/12.319418; https://doi.org/10.1117/12.319418

Back to Top