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Proceedings Paper

Application of wavelet transform to measurement of the phase of an Isodyne fringe
Author(s): Yuqiang Deng; Xinhua Ji; Yuwen Qin; Jin-Long Chen
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Paper Abstract

Isodyne, as an experimental measurement method, can analyze the inner stresses without destroying the specimen. It is unnecessary to use high-power laser as light source, and the equipments of the experiment are simple. Moreover, the fringe of the pattern is clear and undistorted. Previously, making use of phase shift, phase of Isodyne fringe can be determined through four patterns. In this paper, wavelet-transform is applied to the phase analysis of Isodyne fringe, and all the results are satisfied. With the method of wavelet transform, we can determine the phase of Isodyne fringe automatically and accurately with only a single pattern. Furthermore, all the processing can be programmed, so it is easy to realize automatic analysis.

Paper Details

Date Published: 25 September 2003
PDF: 5 pages
Proc. SPIE 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition, (25 September 2003); doi: 10.1117/12.538827
Show Author Affiliations
Yuqiang Deng, Tianjin Univ. (China)
Xinhua Ji, Tianjin Univ. (China)
Yuwen Qin, Tianjin Univ. (China)
Jin-Long Chen, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 5286:
Third International Symposium on Multispectral Image Processing and Pattern Recognition
Hanqing Lu; Tianxu Zhang, Editor(s)

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