1 December 1991 New method of thinning photoelastic interference fringes in image processing
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Abstract
The recorded optical interference fringes are often expanded and blurred, therefore a suitable thinning procedure is necessary and important in image processing.

This paper presents a new thinning method of optical interference fringes. After scanning the fringe pattern row by row, the distribution of the gray level along a row is obtained. After fitting, the extrema of the curves are determined, which denote the position of the integer, minimal light intensity fringes. The advantage of presented method is that the evaluation is simple, the processing speed is faster, and the results are satisfactorily precise, compared with the classical methods.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuan Peng Zhang, "New method of thinning photoelastic interference fringes in image processing", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.49536; https://doi.org/10.1117/12.49536
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