Strain contouring using gabor filters: principle and algorithm

Anand Krishna Asundi; Jun Wang

doi:10.1117/1.1477440

1 June 2002 Strain contouring using gabor filters: principle and algorithm

Anand Krishna Asundi, Jun Wang

Optical Engineering, Vol. 41, Issue 6, (June 2002). https://doi.org/10.1117/1.1477440

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, are 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 that still need to be quantified, while digital methods suffer from drawbacks inherent in the digital differentiation process. We describe a novel approach of strain segmentation for the moire pattern using a multichannel Gabor filter. Appropriate filter design allows for user-specific segmentation, which is essentially in engineering design and analysis.

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Anand Krishna Asundi and Jun Wang "Strain contouring using gabor filters: principle and algorithm," Optical Engineering 41(6), (1 June 2002). https://doi.org/10.1117/1.1477440

Published: 1 June 2002

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