Simulation of speckle patterns with pre-defined correlation distributions
Simulation of speckle patterns with pre-defined correlation distributions
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DOI：
10.1364/boe.7.000798
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发表时间：
2016-03-01
影响因子：
3.4
通讯作者：
Elson, Daniel S.
中科院分区：
文献类型：
--
作者：
Song, Lipei;Zhou, Zhen;Elson, Daniel S.
本文提出了一种利用相干成像原理生成单个或一系列具有预定相关分布的充分发展的散斑图的方法。实现了输入相关矩阵与模拟散斑图之间的相关分布之间的几对一映射，并且这两个相关系数集的值之间存在简单的平方关系。该方法从理论和实验两方面进行了论证。平方关系使得能够容易地从任何期望的相关性分布转换。由于输入的相关分布可以由一个数字矩阵或实验获得的灰度图像定义，这种方法提供了一种方便的方法来模拟真实的散斑相关的实验和评估数据处理技术。(C)2016美国光学学会
We put forward a method to easily generate a single or a sequence of fully developed speckle patterns with pre-defined correlation distribution by utilizing the principle of coherent imaging. The few-to-one mapping between the input correlation matrix and the correlation distribution between simulated speckle patterns is realized and there is a simple square relationship between the values of these two correlation coefficient sets. This method is demonstrated both theoretically and experimentally. The square relationship enables easy conversion from any desired correlation distribution. Since the input correlation distribution can be defined by a digital matrix or a gray-scale image acquired experimentally, this method provides a convenient way to simulate real speckle-related experiments and to evaluate data processing techniques. (C) 2016 Optical Society of America