JOINT WAVELET REPRESENTATION CORRELATOR FOR PATTERN-RECOGNITION

A joint wavelet representation correlator is proposed as a new archite cture to combine wavelets and the joint transform correlator. It perfo rms wavelet representation preprocessing and the correlation operation simultaneously. An intensity filter used for wavelet representation i s the power spectrum of the wavelet function and can easily be synthes ized and displayed. Computer simulation shows that, as compared with p revious joint wavelet transform correlators, its discrimination capabi lity is better and its performance is more stable under input noise. ( C) 1998 Optical Society of America.