利用光学微分预处理的强度光学相关

Intensity optical correlation through optical differentiation preprocessing

本文把采用菲涅耳全息滤波器的强度光学相关识别系统与光学微分预处理系统相结合,通过对输入图像进行边缘增强预处理,强度相关器的鉴别能力得到了改善。给出了理论分析和实验演示的结果。

A high diserimination intensity optical correlation system is presented. By using a lensless spatial differentiation filter to realize edge enhancement for the input images, the discrimination of the intensity optical correlator with the Fresnel holographic filter is improved. Theoretical analysis and experimental demonstrations are given.