穿过不透明散射介质获得目标物体的信息，是光学成像领域重要的研究课题之一.光学记忆效应概念的提出，为散射介质成像的研究提供了强有力的支撑，促进了各种具有实用性的散射成像技术的发展.不过，最初光学记忆效应概念主要是在入射光线旋转的基础上提出来的，以此为基础所发展的散射成像方法虽然具有成像质量高、恢复速度快、非侵入式等特点，但也存在成像范围较小等局限.本文介绍了光学记忆效应概念的物理含义，回顾了最初从空间平移的角度提出，然后逐渐发展到涵盖空间域和频谱域的历程，并对其今后进一步向时空范围发展，成为有助于全面描述点扩散函数时空特征的重要指标作出预测，提出了广义光学记忆效应的概念，为相关散射成像技术的深入研究提供一种新的思路.

Obtaining the information of the target object through an opaque scattering medium is one of the important research topics in the field of optical imaging.The concept of optical memory effect has provided strong support for the research of scattering medium imaging,and has promoted the development of various practical scattering imaging technologies.However,the concept of optical memory effect is mainly proposed on the basis of incident light rotation or spatial translation,and the scattered imaging methods developed on this basis have many limitations such as small imaging range.In this paper,the physical meaning of the concept of optical memory effect is introduced,and the development of the concept is reviewed since it was first proposed from the perspective of spatial translation,and then gradually developed to cover the spatial domain and spectral domain.A prediction is made that the concept will further develop to the spatio-temporal range and becomes an important index helpful to comprehensively describe the spatio-temporal characteristics of point spread function.And the concept of generalized optical memory effect is put forward to provide a new idea for the in-depth study of correlation scattering imaging technology.