Color pattern recognition based on the joint fractional Fourier transform correlator
金伟民, 张玉佩 · Acta Scientiarum Naturalium Universitatis Sunyatseni · 2007
A new system of multi-channel single-output joint fractional Fourier transform correlator (JFRTC) for color pattern recognition is proposed based on the conventional system of multi-channel single-output joint transform correlator (JTC).The theoretical analysis and optical experiments are performed.With this method,one can obtain three correlation peaks at the output plane which show a pair of desired cross-correlation peaks and one auto-correlation peak.In comparison,the conventional system leads to more correlation peaks playing a noise role in color pattern recognition.