提高CGH再现精度的新途径

A New Method for improving restructuring precision of CGH

报道提高计算全息图（CGH）再现像精度的一种新方法，它在罗曼Ⅲ型计算全息的基础上．在取样点数相同的前提下，利用显示器的固有分辨率，将全图分解成多幅子图．再应用图像处理软件重新拼接，从而提高了再显像分辩率。

A new method for improving restructuring precision of CGH is described. On the basis of the CGH coded of Lohmann Ⅲ type,the whole CGH(64×64 sample points) is combined with 64 graphs (8×8 sample points) Using of the resolving power of CRT,the restructuring precision is improved.