SHORT REMARKS ABOUT SYNTHETIC IMAGE GENERATION IN THE CONTEXT OF THE ASSESSMENT OF SUB-PIXEL ACCURACY OF DIGITAL IMAGE CORRELATION

被引：0

作者：

Bornert, M. ^{[1
]}

Doumalin, P. ^{[2
]}

Dupre, J. C. ^{[2
]}

Poilane, C.

Robert, L. ^{[3
]}

Toussaint, E. ^{[4
]}

Wattrisse, B. ^{[5
]}

机构：

[1] Univ Paris Est, Ecole Ponts ParisTech, Lab Navier, Marne La Vallee, France

[2] Univ Poitiers, Inst P, SP2MI, Poitiers, France

[3] Univ Toulouse, Inst Clement Ader, Mines Albi, INSA,UPS,ISAE, Toulouse, France

[4] Univ Blaise Pascal, IFMA, Lab Mecan Ingn, Aubiere, France

[5] Univ Montpellier 2, Lab Mecan Genie Civil, UMR CNRS 5508, Montpellier, France

来源：

ICEM15: 15TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS | 2012年

关键词：

Digital Image Correlation; Uncertainty quantification; Pattern matching; interpolation; Error assessment; ERRORS; STRAIN;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to characterise the ultimate error regime of Digital Image Correlation (DIC) algorithms, sets of virtual transformed images are often generated from a reference image by in-plane sub-pixel translations. This leads to the determination of the well-known S-shaped systematic error curves and their corresponding random error curves. It is reported in this collaborative work that the a priori choices used to numerically shift images (grey level interpolation, direct or reverse transformation between images) modify DIC results and may lead to biased conclusions in terms of DIC errors.

引用

页数：10

共 15 条

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