Wavelet-transform-based digital image processing of photomechanics

J. Fang; Chun-Yang Xiong; Hongju Li; M. Li; J. Zhang

doi:10.1117/12.468756

29 May 2002 Wavelet-transform-based digital image processing of photomechanics

J. Fang, Chun-Yang Xiong, Hongju Li, M. Li, J. Zhang

Proceedings Volume 4537, Third International Conference on Experimental Mechanics; (2002) https://doi.org/10.1117/12.468756
Event: Third International Conference on Experimental Mechanics, 2002, Beijing, China

Abstract

In this lecture, the process of wavelet transform (WT) is reported for the image patterns of photomechanics, that involve carrier fringe patterns and randomly distributed speckle patterns. For the frequency modulated carrier patterns, the results from wavelet transform are compared with that from Fourier transform (FT), which shows the advantages of WT in the solution of high graduate problems such as concentration of strains and localization of solid-liquid interface. For the correlation matching of the speckle images during deformation, the computation based on wavelet coefficient shows sharper correlation peak than the convenient algorithms directly based on gray levels. 2D WT is presented to process the displacement fields resulted from correlation to show the detection of the crack singularity in materials by the wavelet transformation.

Citation Download Citation

J. Fang, Chun-Yang Xiong, Hongju Li, M. Li, and J. Zhang "Wavelet-transform-based digital image processing of photomechanics", Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); https://doi.org/10.1117/12.468756

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