给出一种单通道光学相关实现击中与否运算的算法和光学装置。此法基于形态学中腐蚀运算和光学相关的关系及阈值操作，在非相干光学相关器中，将前景结构核元素编码为１，背景结构核元素编码为α（α满足一定条件），只需用原图像与前景和背景结构核进行相关，然后对相关结果取阈值为Ｋ（前景结构核元素的像素数），即可得到击中与否运算。击中与否运算可以光学并行一步实现 An algorithm and optical device for single-channel optical correlation hit-and-miss operation are given. This method is based on the relationship between corrosion and optics in morphology and the threshold operation. In the incoherent optical correlator, the kernel of the foreground structure is encoded as 1, and the background structure is encoded as α (α satisfies a certain condition) The original image is correlated with the foreground and background kernels, and then the result of the hit is K (the number of pixels of the foreground structure element). Hit or not operation can be achieved optically in parallel