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Proceedings Paper

Partial-differential-equation-based coherence-enhancing denoising for fringe patterns
Author(s): Haixia Wang; Kemao Qian; Wenjing Gao; Feng Lin; Hock Soon Seah
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Paper Abstract

Fringe patterns produced by electronic speckle pattern interferometry (ESPI) are evaluated to measure the deformation on object surfaces. Noise is one of the key problems affecting further processing of the fringe patterns and reduces the final measurement quality. This paper presents a partial differential equations (PDEs) based coherence enhancing denoising model to reduce the noise, enhance the flow-like structure and improve the image quality of fringe patterns. Experimental results show that this filter is flexible and capable of removing most of the noise in ESPI fringe patterns.

Paper Details

Date Published: 24 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73752E (24 August 2009); doi: 10.1117/12.839214
Show Author Affiliations
Haixia Wang, Nanyang Technological Univ. (Singapore)
Kemao Qian, Nanyang Technological Univ. (Singapore)
Wenjing Gao, Nanyang Technological Univ. (Singapore)
Feng Lin, Nanyang Technological Univ. (Singapore)
Hock Soon Seah, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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