Page 380 - Introduction to Information Optics
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7.2. Recognition by Correlation Detections

                           Beam Splitter
                                      -=»wMin












                                                          Square Law
                                                          Detector












                      Fig. 7.11. A quasi-Fourier transform JTC (QFJTC).


                          G A


                           B G



                           Input Object        Reference

















       Fig. 7.12. (a) Input object and reference function, (b) Output correlator distribution.
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