Application of wavelet transform to measurement of the phase of an Isodyne fringe

Yuqiang Deng; Xinhua Ji; Yuwen Qin; Jin-Long Chen

doi:10.1117/12.538827

25 September 2003 Application of wavelet transform to measurement of the phase of an Isodyne fringe

Yuqiang Deng, Xinhua Ji, Yuwen Qin, Jin-Long Chen

Proceedings Volume 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition; (2003) https://doi.org/10.1117/12.538827
Event: Third International Symposium on Multispectral Image Processing and Pattern Recognition, 2003, Beijing, China

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.

Citation Download Citation

Yuqiang Deng, Xinhua Ji, Yuwen Qin, and Jin-Long Chen "Application of wavelet transform to measurement of the phase of an Isodyne fringe", Proc. SPIE 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition, (25 September 2003); https://doi.org/10.1117/12.538827

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