【摘要】 我们对联合变换相关器的输入图象进行 Roberts梯度处理 ,同时对参考图象采取相移技术 ,并在频域中将功率谱二值化。与传统的联合变换相关器 (CJTC)相比 ,新型的联合变换相关器(NJTC)消除了功率谱的直流分量 ,锐化了相关峰强度 ,提高了衍射效率和识别能力 ,同时增强了联合变换相关器的抗噪性能。用计算机模拟出预言结果更多还原

【Abstract】 Roberts gradient processing is carried out for the input image of joint transform correlator, and at the same time phase shift technique is applied to the reference image and binaryzation is implemented in power spectrum in the frequency domain. Compared with the common joint transform correlator, the new joint transform correlator has eliminated the direct current component of the power spectrum, sharpened correlation peak intensity and improved diffraction efficiency and recognition capacity. The noise immunity of the joint transform correlator has also been intensified. The predicted results are simulated by a computer in the paper.更多还原