McAulay A D
Appl Opt. 2001 Feb 10;40(5):662-71. doi: 10.1364/ao.40.000662.
Novel real-time joint transform, Hilbert transform optical correlators are proposed in which only a half or a quarter of the Fourier plane is written onto an optically addressable spatial light modulator. A point source is used to recover the result for the whole plane. As a result, images with a two- or four-times larger space-bandwidth product can be matched in amplitude and phase. The effect of truncating the transform plane is explained with two- and one-dimensional Hilbert transform analysis. Results of computer simulation are shown.
提出了新型实时联合变换、希尔伯特变换光学相关器，其中仅将傅里叶平面的一半或四分之一写入光寻址空间光调制器。使用一个点光源来恢复整个平面的结果。因此，可以在幅度和相位上匹配具有两倍或四倍更大空间带宽积的图像。用二维和一维希尔伯特变换分析解释了截断变换平面的效果。给出了计算机模拟结果。
