Title :
An improved method of camera calibration
Author :
Qiucheng, Sun ; Xiaogang, Dong ; Ming, Liu ; Jiawei, Tan
Author_Institution :
Coll. of Basic Sci., ChangChun Univ. Of Technol., Changchun, China
Abstract :
An improved calibration algorithms have been proposed in this paper. With studying Zhang´s calibration algorithm, we found that the distortion model contains only radial distortion, and the mathematical form of distortion model is not applicable. Using this model solving three-dimensional coordinates of the point in image will be calculated with greater error. The paper changed the mathematical form of the distortion model, and considered the tangential distortion, obtained a new distortion model. Experiments show that the average residual was less than 0.01mm in the calibration method, and the computing time is shorter.
Keywords :
calibration; cameras; camera calibration; distortion model; radial distortion; three-dimensional coordinates; Accuracy; Calibration; Cameras; Computational modeling; Equations; Mathematical model; Nonlinear distortion; camera calibration; distortion model; initial value;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037877
