High-Accuracy Two-Dimensional Digital Image Correlation Measurement System Using a Bilateral Telecentric Lens

2013 ◽  
Vol 33 (4) ◽  
pp. 0412004 ◽  
Author(s):  
潘兵 Pan Bing ◽  
俞立平 Yu Liping ◽  
吴大方 Wu Dafang
Keyword(s):  
Digital Image Correlation ◽  
Measurement System ◽  
Digital Image ◽  
High Accuracy ◽  
Correlation Measurement ◽  
Image Correlation ◽  
Two Dimensional ◽  
Telecentric Lens

High-accuracy optical extensometer realized by two parallel cameras and two-dimensional digital image correlation

2020 ◽  
Vol 59 (34) ◽  
pp. 10813
Author(s):  
Feipeng Zhu ◽  
Jian Gu ◽  
Runzhi Lu ◽  
Pengxiang Bai ◽  
Dong Lei ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
High Accuracy ◽  
Image Correlation ◽  
Two Dimensional

scholarly journals A Review of Surface Deformation and Strain Measurement Using Two-Dimensional Digital Image Correlation

2016 ◽  
Vol 23 (3) ◽  
pp. 461-480 ◽  
Author(s):  
Sze-Wei Khoo ◽  
Saravanan Karuppanan ◽  
Ching-Seong Tan
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Measurement ◽  
Surface Deformation ◽  
Optical Measurement ◽  
Image Correlation ◽  
Two Dimensional ◽  
Full Field ◽  
Computation Efficiency ◽  
Dimensional Measurements

Abstract Among the full-field optical measurement methods, the Digital Image Correlation (DIC) is one of the techniques which has been given particular attention. Technically, the DIC technique refers to a non-contact strain measurement method that mathematically compares the grey intensity changes of the images captured at two different states: before and after deformation. The measurement can be performed by numerically calculating the displacement of speckles which are deposited on the top of object’s surface. In this paper, the Two-Dimensional Digital Image Correlation (2D-DIC) is presented and its fundamental concepts are discussed. Next, the development of the 2D-DIC algorithms in the past 33 years is reviewed systematically. The improvement of 2DDIC algorithms is presented with respect to two distinct aspects: their computation efficiency and measurement accuracy. Furthermore, analysis of the 2D-DIC accuracy is included, followed by a review of the DIC applications for two-dimensional measurements.

Sign in / Sign up

Export Citation Format

Share Document