利用π/2位相滤波器实现正负图像乘积

Use π/2 phase filter to realize product of positive and negative images

本文介绍了用一种特殊的π/2位相滤液器,分别对0、±1级频谱进行处理,从而得到正弦物的正、负图象光强乘积。为实现实时假彩色编码及信息光学的其它方面的应用提供了一种新的手段。本文还介绍了特殊的π/2位相滤液波器的形状、制作和检测方法。

This paper introduces a kind of π/2 phase filters in a particularshape, in order to get intensity product of positive and negative image of sine object by filteringo and ±1 frequencies. It gives a new method for realizingthe use of real-time pseudocopour encoding of picture. It introduces the particular shape of the filter and methods of making and detecting it.