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Proceedings Paper

Removing speckle noise from speckle fringe patterns by spin filtering with curved surface windows
Author(s): Qifeng Yu; Xiangyi Sun; Xiaolin Liu
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Paper 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.

Paper Details

Date Published: 8 March 2002
PDF: 7 pages
Proc. SPIE 4664, Machine Vision Applications in Industrial Inspection X, (8 March 2002); doi: 10.1117/12.460184
Show Author Affiliations
Qifeng Yu, National Univ. of Defense Technology (China)
Xiangyi Sun, National Univ. of Defense Technology (China)
Xiaolin Liu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 4664:
Machine Vision Applications in Industrial Inspection X
Martin A. Hunt, Editor(s)

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