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18 August 1995Design of a simple recursive filter for processing ESPI fringe patterns
This paper presents a simple method to design a recursive filter for processing ESPI fringe pattern to obtain a quality results according to the frequency of the fringe. This method of speckle noise reduction has the advantages of both less computation time and improved results.
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Fang Chen, J. Wang, Christopher T. Griffen, Y.Y. Hung, "Design of a simple recursive filter for processing ESPI fringe patterns," Proc. SPIE 2622, Optical Engineering Midwest '95, (18 August 1995); https://doi.org/10.1117/12.216844