物体和探测器中间存在的散射介质会对传统光学成像造成严重影响，计算关联成像是能够降低散射影响的有效方法之一。本文分析了光源发射路径和接收路径存在的散射介质，建立了存在散射介质的计算关联成像（CGI）模型，对比分析了不同路径段的散射介质对CGI和传统直接成像（TDI）的影响。从理论分析得出，CGI中发射路径的散射介质会引起重建图像质量的衰减，而接收路径中的散射介质几乎不会影响最终的成像结果。实验分析证实，CGI可以降低散射光对成像造成的干扰。实验结果表明，在发射路径和接收路径同时存在散射干扰时，CGI和TDI的衬噪比分别为2.98和2.72。CGI能够降低云、烟、雾或生物组织等介质的散射干扰。

In traditional direct imaging a scattering medium between the object and detection system will severely degrade the image quality. Computational correlation imaging (GI) has a unique advantage in that the effect of the light scattering can be greatly reduced. We present an analysis of computational correlation imaging and traditional direct imaging (TDI) with a turbid medium in various locations in the beam paths. It is found that a scattering medium in the illumination path will decrease the reconstructed imaging quality, while if it is only in the detection path it has almost no effect. Experimental results with a scattering medium in both the illumination and detection paths show an improved contrast-to-noise ratio of 2.98 compared with 2.72 for conventional direct imaging. These results are important for imaging objects embedded in media such as fog, smoke and cloud.