基于绝对差度量的灰阶图像光学匹配运算

Optical gray scalae image matching based on absolute difference magnitude

讨论了基于绝对差度量的灰阶图像识别问题；利用光学相关原理和循环编码方法实现了基于绝对差度量的灰阶图像快速匹配处理；基于差异度矩阵和λ截集的概念来描述匹配结果，提高了灰阶目标识别抵抗各种畸变干扰的稳定性。此方法可以适用于任何的相干光和非相干光相关系统，给出了实验示例。

The problem of gray scale image matchng based on absolute difference magnanimity is discussed. Using optical correlation and a novel cycle encoding method the processing of gray scalae image matching based on absolute difference magnanimity is realized. Difference matrix and λ cut set is used for describing the matching result, which can improve the distortion invariant ability. The novel method can be used in coherent correlators or incoherent correlators. By using an incoherent correlator the optical experimental results are obtained.