Non-contact measurement of rotation angle with solo camera

Xiaochuan Gan; Anbin Sun; Xin Ye; Liqun Ma

doi:10.1117/12.2180752

6 March 2015 Non-contact measurement of rotation angle with solo camera

Xiaochuan Gan, Anbin Sun, Xin Ye, Liqun Ma

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 94461C (2015) https://doi.org/10.1117/12.2180752
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

For the purpose to measure a rotation angle around the axis of an object, a non-contact rotation angle measurement method based on solo camera was promoted. The intrinsic parameters of camera were calibrated using chessboard on principle of plane calibration theory. The translation matrix and rotation matrix between the object coordinate and the camera coordinate were calculated according to the relationship between the corners’ position on object and their coordinates on image. Then the rotation angle between the measured object and the camera could be resolved from the rotation matrix. A precise angle dividing table (PADT) was chosen as the reference to verify the angle measurement error of this method. Test results indicated that the rotation angle measurement error of this method did not exceed ± 0.01 degree.

Citation Download Citation

Xiaochuan Gan, Anbin Sun, Xin Ye, and Liqun Ma "Non-contact measurement of rotation angle with solo camera ", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94461C (6 March 2015); https://doi.org/10.1117/12.2180752

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KEYWORDS

Cameras

Imaging systems

Calibration

Error analysis

Photogrammetry

CCD cameras

Distortion

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