Strain contouring using Gabor filters

Anand Krishna Asundi; Jun Wang

doi:10.1117/12.449383

26 November 2001 Strain contouring using Gabor filters

Anand Krishna Asundi, Jun Wang

Proceedings Volume 4448, Optical Diagnostics for Fluids, Solids, and Combustion; (2001) https://doi.org/10.1117/12.449383
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

Citation Download Citation

Anand Krishna Asundi and Jun Wang "Strain contouring using Gabor filters", Proc. SPIE 4448, Optical Diagnostics for Fluids, Solids, and Combustion, (26 November 2001); https://doi.org/10.1117/12.449383

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available