基于数字全息技术的透过散射介质的成像仿真

Simulation of imaging through scattering medium based on digital holography

本文根据光的标量衍射理论,利用数字全息技术产生了包含散射介质共轭信息的物光共轭光,消除了散射介质的影响,并对散射介质内的目标物体进行清晰成像.对实际应用场景下的成像过程进行了分析和讨论,模拟了不同散射介质颗粒大小、物体与散射层不同间距下的成像效果,讨论了利用CCD和空间光调制器实现实时成像的可行性.

According tOthe scalar diffraction theory of light,the process of generating conjugated light by digital holography has been simulated in this paper.By using the conjugated light,the disturbance of scattering media is eliminated and the object covered by scattering media is imaged clearly.The imaging process in actual application is analyzed and discussed.Imaging effects caused by different particle sizes ofscattering medium and different depths of medium are simulated.In addition,the feasibility of real-time imaging by using CCD and spatial light modulator is alsOdiscussed.