Falldorf Claas, von Kopylow Christoph, Bergmann Ralf B
J Opt Soc Am A Opt Image Sci Vis. 2013 Oct 1;30(10):1905-12. doi: 10.1364/JOSAA.30.001905.
In this paper, we present a method to recover the complex amplitude of speckle fields from measurements performed by a shear interferometer. It is based on the optimization of an objective function using the steepest descent gradient technique in combination with a heuristic initial guess. In contrast to already existing methods, the algorithm finds a local minimum least-squares solution even in the presence of Poissonian and Gaussian noise.
在本文中，我们提出了一种从剪切干涉仪测量结果中恢复散斑场复振幅的方法。该方法基于使用最速下降梯度技术结合启发式初始猜测对目标函数进行优化。与现有方法不同，即使存在泊松噪声和高斯噪声，该算法也能找到局部最小二乘解。
