摘要
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.
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.
基金
This work was supported by the Zhejiang Provincial Natural Science Foundation of China (No.M603212)
the Zhejiang Provincial Science and Technology Program of China (No.2004C31089).
