Laser-beam-based calibration

Jun Zhang; Dandan Tian; Xiaomao Liu; Hao Zhu; Hao Yue; Rong Yang; Yiquan Li; Shu Chen; Jinwen Tian

doi:10.1117/12.901904

2 December 2011 Laser-beam-based calibration

Jun Zhang, Dandan Tian, Xiaomao Liu, Hao Zhu, Hao Yue, Rong Yang, Yiquan Li, Shu Chen, Jinwen Tian

Proceedings Volume 8004, MIPPR 2011: Pattern Recognition and Computer Vision; 80040T (2011) https://doi.org/10.1117/12.901904
Event: Seventh International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR2011), 2011, Guilin, China

Abstract

A laser beam based calibration method is proposed in the paper. The laser beam we used can keep the cylinder shape in the real world space. The cylinder shaped laser beam will form an elliptical area in the plane in which the defect we want to measure also located. This elliptical laser area will form an ellipse in the image. Our purpose is to achieve calibration only depending on the elliptical parameters of the ellipse in the image. We created the relationship model between the elliptical parameters of the ellipse in the image and the calibration parameters of the video appliance, and we find a quick and easy way to solve the relationship model. Using this calibration method we can achieve contactless video measurement during the equipment checking in the nuclear power station.

Citation Download Citation

Jun Zhang, Dandan Tian, Xiaomao Liu, Hao Zhu, Hao Yue, Rong Yang, Yiquan Li, Shu Chen, and Jinwen Tian "Laser-beam-based calibration", Proc. SPIE 8004, MIPPR 2011: Pattern Recognition and Computer Vision, 80040T (2 December 2011); https://doi.org/10.1117/12.901904

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KEYWORDS

Calibration

Imaging systems

Video

Cameras

Stereoscopic cameras

3D image processing

Environmental sensing

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