Xuebin Wang, Bin Yu, Wei Dong, Chao Zhou, Qiang Zhang. Digital Image Correlation Method Based on Combination of Element Matching and Subset Matching for Localized Deformation Measurements[J]. Laser & Optoelectronics Progress, 2022, 59(10): 1012001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 10, 1012001 (2022)
Fig. 1. Schematic of subset-DIC method
Fig. 2. Schematic of nine-node global-DIC method
Fig. 3. Schematic of DIC method based on combination of element matching and subset matching for localized deformation measurements
Fig. 4. Simulated speckle images. (a) Reference image; (b) image containing a horizontal fictitious shear band
Fig. 5. Distributions of averaged displacements and displacement errors of three kinds of methods when size is 21 pixel×21 pixel. (a)
Fig. 6. Distributions of averaged displacements and displacement errors of three kinds of methods when size is 41 pixel×41 pixel. (a)
Fig. 7. Images of clay specimen. (a) Initial loading stage; (b) typical moment during loading process
Fig. 8.
Fig. 9. Distributions of
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Table 1. Effects of sizes on
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