Javidi B, Horner J L
Appl Opt. 1989 Mar 1;28(5):1027-32. doi: 10.1364/AO.28.001027.
We describe a joint Fourier transform image correlator that employs thresholding at both the input plane and the Fourier plane. This suggests using a single binary spatial light modulator (SLM) to read in sequentially the binarized input signal and the binarized Fourier transform interference intensity. The performance of the single SLM joint Fourier transform correlator (JTC) is compared with that of the classical JTC in the areas of correlation peak intensity, peak-to-sidelobe ratio, signal-to-noise ratio (SNR), and correlation width. We show that the single SLM JTC outperforms the classical JTC in all such areas. Using a single binary SLM results in significant reduction in cost, size and complexity of the system.
我们描述了一种联合傅里叶变换图像相关器，它在输入平面和傅里叶平面都采用了阈值处理。这表明可使用单个二元空间光调制器（SLM）来依次读取二值化的输入信号和二值化的傅里叶变换干涉强度。在相关峰强度、峰旁瓣比、信噪比（SNR）和相关宽度等方面，将单SLM联合傅里叶变换相关器（JTC）的性能与经典JTC的性能进行了比较。我们表明，单SLM JTC在所有这些方面都优于经典JTC。使用单个二元SLM可显著降低系统的成本、尺寸和复杂性。
