Removing speckle noise from speckle fringe patterns by spin filtering with curved surface windows

Qifeng Yu; Xiangyi Sun; Xiaolin Liu

doi:10.1117/12.460184

8 March 2002 Removing speckle noise from speckle fringe patterns by spin filtering with curved surface windows

Qifeng Yu, Xiangyi Sun, Xiaolin Liu

Proceedings Volume 4664, Machine Vision Applications in Industrial Inspection X; (2002) https://doi.org/10.1117/12.460184
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

Removing speckle noise of electronic speckle pattern interferometry (ESPI) from a single ESPI fringe pattern while keeping the fringe feature is a difficult problem and remains unsolved. In this paper, the spin filtering proposed by the authors is developed further with curved surface windows to filter off speckle noise from a single speckle fringe pattern. With the new filtering, the speckle noise can be removed nearly completely from a single speckle fringe pattern. The most important advantage of the method is that no blurring effects occur for speckle fringe patterns and the smooth fringe pattern of a phase field is retrieved and derived.

Citation Download Citation

Qifeng Yu, Xiangyi Sun, and Xiaolin Liu "Removing speckle noise from speckle fringe patterns by spin filtering with curved surface windows", Proc. SPIE 4664, Machine Vision Applications in Industrial Inspection X, (8 March 2002); https://doi.org/10.1117/12.460184

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