Publication: Robot vision system for coordinate measurement of feature points on large scale automobile part
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Issued Date
2016
Resource Type
File Type
application/pdf
ISSN
1674862X
Other identifier(s)
2-s2.0-84975833313
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Journal of Electronic Science and Technology. Vol 14, No.1 (2016), p.80-86
Suggested Citation
Joompolpong P., Mittrapiyanuruk P., Keawtrakulpong P. Robot vision system for coordinate measurement of feature points on large scale automobile part. Journal of Electronic Science and Technology. Vol 14, No.1 (2016), p.80-86. doi:10.11989/JEST.1674-862X.510052 Retrieved from: https://hdl.handle.net/20.500.14740/5906
Abstract
In this paper, we present a robot vision based system for coordinate measurement of feature points on large scale automobile parts. Our system consists of an industrial 6-DOF robot mounted with a CCD camera and a PC. The system controls the robot into the area of feature points. The images of measuring feature points are acquired by the camera mounted on the robot. 3D positions of the feature points are obtained from a model based pose estimation that applies to the images. The measured positions of all feature points are then transformed to the reference coordinate of feature points whose positions are obtained from the coordinate measuring machine (CMM). Finally, the point-to-point distances between the measured feature points and the reference feature points are calculated and reported. The results show that the root mean square error (RMSE) of measure values obtained by our system is less than 0.5 mm. Our system is adequate for automobile assembly and can perform faster than conventional methods.