Random Error in Strain Calculation using Regularized Polynomial Smoothing (RPS) and Point-wise Least Squares (PLS) in Digital Image Correlation

•The estimations of random error and under-matched error caused by two strain calculation methods (point-wise least squares (PLS) and regularized polynomial smoothing method (RPS)) are proposed, based on two assumptions on the noise error of calculated displacement.•For the typical kernel function o...

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Bibliographic Details

Published in:	Optics and lasers in engineering Vol. 142; p. 106590
Main Authors:	Li, Xin, Fang, Gang, Zhao, Jiaqing, Zhang, Zhengming, Sun, Libin, Wang, Haitao, Wu, Xinxin
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01.07.2021
Subjects:	Digital image correlation Displacement smoothing Self-Adaptive Algorithm Strain random error Strain random error Digital image correlation Displacement smoothing Self-Adaptive Algorithm
ISSN:	0143-8166, 1873-0302
Online Access:	Get full text
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