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Proceedings Paper

Strain contouring using Gabor filters
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Paper Abstract

Moire interferometry is a powerful technique for high sensitivity in-plane deformation contouring. However, from an engineering viewpoint, the derivatives of displacement, i.e. strain, is the desired parameter. Thus there is a need to differentiate the displacement field. Optical and digital methods have been proposed for this differentiation. Optical methods provide contours which still need to be quantified, while digital methods suffer from drawbacks inherent in the digital differentiation process. In this letter we describe a novel approach of strain segmentation the moire pattern using a multi-channel Gabor filter. Appropriate filter design allows for user-specific segmentation, which is essentially in engineering design and analysis.

Paper Details

Date Published: 26 November 2001
PDF: 7 pages
Proc. SPIE 4448, Optical Diagnostics for Fluids, Solids, and Combustion, (26 November 2001); doi: 10.1117/12.449383
Show Author Affiliations
Anand Krishna Asundi, Nanyang Technological Univ. (Singapore)
Jun Wang, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 4448:
Optical Diagnostics for Fluids, Solids, and Combustion
Carolyn R. Mercer; Soyoung Stephen Cha; Gongxin Shen, Editor(s)

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