WRP计算全息图的快速生成优化设计

摘要

在空间曲面光源的衍射计算研究中,将曲面光源转换为平面光源的集合是一种较为流行的算法.基于WRP算法,给出按z轴加权的方法提高成像质量,并通过理论计算出微小区域ξ内物点的直接投影与区域外物点的WRP算法相结合的方法,提高了全息图的计算速度.理论模拟结果表明,采用该方法能快速、准确、清晰地重建三维物体像,使成像质量及全息图的计算速度有了一定的提高.%It's popular that transforming the surface light source into plane light source in the research of diffraction cal-culation about space curved light source.Based on the WRP algorithm,we give a solution about weighting by z-axis to im-prove the quality of image and combine the theory calculation with WRP algorithm to calculate the direct projection around the object in the micro region and out off the region in this paper.The calculation speed of the hologram is improved.It's indicated that we can reconstruct the 3D object image quickly and accurately.Furthermore,the quality of image and the cal-culation speed of hologram are improved.