The 2D Calibration Error Analysis and Compensation in the Visual Measurement

Author

Gao, Deng-Ke ; Wang, Yong-Qiang ; Zhou, Cong-Ling ; Xu, Zeng-Pu

Author_Institution

Coll. of Mech. Eng., Tianjin Univ. of Sci. & Technol., Tianjin, China

Volume

2

fYear

2012

fDate

26-27 Aug. 2012

Firstpage

238

Lastpage

241

Abstract

Plane calibration error can´t be avoided, which has a direct influence on the measurement accuracy in the 2D vision measurement system. This paper first analyzes the law of error distribution which occurs commonly in 2D plane calibration and establishes the infinitesimal error compensation model bases on this law. The pixels´ error on the plane is compensated through image correcting and pixels´ object plane coordinate rebuilding. The result shows that this method can reduce the error effectively so that the accuracy of the vision measurement system is improved.

Keywords

calibration; computer vision; error compensation; 2D calibration error analysis; 2D plane calibration error; 2D vision measurement system; error distribution law; image correction; infinitesimal error compensation model; pixel object plane coordinate rebuilding; visual measurement; Accuracy; Calibration; Error compensation; Image edge detection; Interpolation; Measurement uncertainty; Standards; 2D plane calibration; Correction; Error distribution; Infinitesimal element of the error compensation model; Reconstruction of object plane coordinates;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Human-Machine Systems and Cybernetics (IHMSC), 2012 4th International Conference on

Conference_Location

Nanchang, Jiangxi

Print_ISBN

978-1-4673-1902-7

Type

conf

DOI

10.1109/IHMSC.2012.153

Filename

6305767