Filtering Method Based on Partial Differential Equations for Speckle-Shearing Interferograms

被引：2
|
作者：
Heng, Qianqian [1 ]
Lou, Xiaoping [1 ]
Lv, Naiguang [1 ]
机构：
[1] Beijing Informat Sci & Technol Univ, Sch Photoelect Informat & Commun Engn, Beijing 100192, Peoples R China
来源：
2012 INTERNATIONAL WORKSHOP ON INFORMATION AND ELECTRONICS ENGINEERING | 2012年 / 29卷
关键词：
partial differential equation; nonlinear diffusion; speckle-shearing interferometry; image filtering;
D O I：
10.1016/j.proeng.2012.01.312
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In the speckle-shearing interferometry, the interferograms are obtained by the shearography. There are lots of noises in the interferograms. Removing the noises of the interferograms is the key issue in the interference measurement. In the paper, Perona-Malik nonlinear diffusion filtering method based on partial differential equations (PDE) is used in the filtering process of speckle-shearing interferograms. Gaussian smoothing filter is combined in the P-M filtering method to improve the filtering effect. Through the experiments of the improved model, it is showed that in the case of the psnr remaining unchanged, the large particle noises are inhibited and edge details are kept better. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
引用
收藏
页码：2342 / 2346
页数：5
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