应用计算全息制作的子波匹配滤波器实现光学子波变换的研究

Optical Wavelet Transform Using Computer-GeneratedWavelet Matched Filter

介绍了一种应用计算全息制作的子波匹配滤波器实现光学子波变换的新方法，应用计算全息制作Ｈａａｒ子波函数的匹配滤波器和光学ＶａｎｄｅｒＬｕｇｔ相关器实现了二维子波变换，给出了实验结果。这种方法可实现任意子波函数的光学子波变换，且简单易行。

A Haar wavelet transform with a Vander Lugt optical correlator is described. Optical Haar wavelet matched filter is created by using of computergenerated holography (CGH′s). Experimental results for 2D wavelet transform are obtained. The main advantage of the proposed method lies in that any types of wavelet matched filters can be fabricated and their 2D wavelet transform can be realized.