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Proceedings Paper

Advanced image processing method applied to speckle fringe pattern based on wavelet transform
Author(s): Hong Miao; Zhenyu Jiang; Kemao Qian; Xiaoping Wu
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Paper Abstract

In this paper, an advanced image processing method, the discrete dyadic wavelet transform based non-linear filtering method applied to speckle fringe pattern, is presented. By this method, an image can be expanded to a series of sub-images according to their frequency band. The different filtering skills will be applied to the sub-images and the rebuilt image will keep the original characteristic except the speckle noise. For example, it can keep the border of the object in the fringe pattern clearly after filtering the speckle noise. Compare with the other kind of wavelet transforms, the Discrete Dyadic Wavelet Transform need not decreasing sample the original image, so the distortion of the rebuilt image can be greatly avoided. The principle of the dyadic discrete wavelet transform is introduced first, and then a practical algorithm to reduce the speckle noise of a fringe pattern is given. At last part of this paper, a computer simulation result processed by this method is presented.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468868
Show Author Affiliations
Hong Miao, Univ. of Science and Technology of China (China)
Zhenyu Jiang, Univ. of Science and Technology of China (China)
Kemao Qian, Univ. of Science and Technology of China (China)
Xiaoping Wu, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics

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