摘要
在光测力学中 ,如何从单幅散斑干涉条纹图中消除散斑噪声 ,高精度自动提取相位信息 ,是一项较困难的工作 .本文提出了一种计算条纹方向的简单算法 ,以及通过条纹方向图提取散斑条纹中心线的方法 .
In optical deformation measurement, how to remove the speckle noise from a speckle interferometry fringe pattern, and observe the fringe phase information high-accurately and automatically is a difficult problem. In this paper, a simple method for estimating fringe orientation is presented, and a method of picking up the fringe skeletons of speckle pattern from fringe orientation is discussed. These methods are tested by real speckle fringe pattern. The results show that the method is very effective for the speckle fringe patterns with high noise level.
出处
《实验力学》
CSCD
北大核心
2001年第4期427-432,共6页
Journal of Experimental Mechanics
基金
国家自然科学基金 (基金项目号 :1 9872 0 77)
