CAD-Based Calibration and Shape Measurement with StereoDIC

被引：51
作者：
Beaubier, B. [1 ,2 ]
Dufour, J. -E. [1 ]
Hild, F. [1 ]
Roux, S. [1 ]
Lavernhe, S. [3 ]
Lavernhe-Taillard, K. [1 ]
机构：
[1] UniverSud Paris, LMT Cachan, ENS Cachan, CNRS,UPMC,PRES, F-94235 Cachan, France
[2] Ctr Tech Velizy B, PSA Peugeot Citroen, F-78140 Velizy Villacoublay, France
[3] Univ Paris 11, LURPA, ENS Cachan, PRES UniverSud, F-94235 Cachan, France
来源：
EXPERIMENTAL MECHANICS | 2014年 / 54卷 / 03期
关键词：
Calibration; DIC; Freeform surfaces; Photogrammetry; Stereocorrelation; 3-DIMENSIONAL IMAGE CORRELATION; ACCURATE MEASUREMENT; CAMERA;
D O I：
10.1007/s11340-013-9794-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new calibration procedure is proposed for a stereovision setup. It uses the object of interest as the calibration target, provided the observed surface has a known definition (e.g., its CAD model). In a first step, the transformation matrices needed for the calibration of the setup are determined assuming that the object conforms to its CAD model. Then the 3D shape of the surface of interest is evaluated by deforming the a priori given freeform surface. These two steps are performed via an integrated approach to stereoDIC. The measured 3D shape of a machined B,zier patch is validated against data obtained by a coordinate measuring machine. The feasibility of the calibration method's application to large surfaces is shown with the analysis of a 2-m(2) automotive roof panel.
引用
收藏
页码：329 / 341
页数：13
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