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Proceedings Paper

A modified digital image correlation with enhanced speed and improved accuracy
Author(s): Bang-Jian Li; Quan-Bao Wang; Deng-Ping Duan
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Paper Abstract

Digital image correlation (DIC) is widely applied in optical measurement field. In this work, the classical DIC algorithm is modified to improve the speed and enhance the measurement accuracy. A Butterworth function is installed on the traditional sum-of-squared differences correlation criterion. And inverse compositional Gauss-Newton is carried out. The computer generated speckle patterns are used to demonstrate the presented algorithm. The results declare the proposed method can improve the speed with enhanced measurement accuracy.

Paper Details

Date Published: 10 February 2017
PDF: 5 pages
Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102502O (10 February 2017); doi: 10.1117/12.2266723
Show Author Affiliations
Bang-Jian Li, Shanghai Jiao Tong Univ. (China)
Quan-Bao Wang, Shanghai Jiao Tong Univ. (China)
Deng-Ping Duan, Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 10250:
International Conference on Optical and Photonics Engineering (icOPEN 2016)
Anand Krishna Asundi; Xiyan Huang; Yi Xie, Editor(s)

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