Improved target detection and recognition in complicated background with joint transform correlator

We present an effective method to enhance target detection and recognition by Canny algorithm, which can obtain the continuous and distinct image edges, also suppress back-ground noise effectively, for this reason, correlation output processed by our proposed method provides higher discrimination than the classical JTC. Computer simulations demonstrate the improved method can obviously suppress noise and sidelobes, also enhance the performance of detection and recognition for JTC. An optoelectronic hybrid JTC is constructed to verify the efficiency. Experimental results present the sharp correlation peak and also confirm the method effectiveness.