Path-independent digital image correlation with high accuracy, speed and robustness

• Main Authors: Jiang, Zhenyu, Kemao, Qian, Miao, Hong, Yang, Jinglei, Tang, Liqun
• Other Authors: School of Computer Science and Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: Digital image correlation; Fast Fourier transform; Inverse compositional algorithm; Gauss–Newton method; Path-independence
• Online Access: https://hdl.handle.net/10356/81521; http://hdl.handle.net/10220/40826
• Institution: Nanyang Technological University

The initial guess transferring mechanism is widely used in iterative DIC algorithms and leads to path-dependence. Using the known deformation at a processed point to estimate the initial guess at its neighboring points could save considerable computation time, and a cogitatively-selected processing...