Online Calibration of Stereo Vision Measurement System

2009 ◽  
Vol 29 (6) ◽  
pp. 1546-1551
Author(s):  
徐巧玉 Xu Qiaoyu ◽  
姚怀 Yao Huai ◽  
车仁生 Che Rensheng
2005 ◽  
Vol 295-296 ◽  
pp. 723-728
Author(s):  
Z.J. Yu ◽  
S.Y. Ma ◽  
R.S. Che ◽  
Q.Z. Wang ◽  
W. Tian ◽  
...  

A new method for calibrating stereo vision measurement system is presented. By moving a rigid optical reference bar in a pattern in and around the measurement volume, the relative orientation and position of the two cameras can be determined by using the epipolar constraint, the linear normalization eight-point algorithm and the M-estimator method. The scale factor of the translation between the two cameras can be calculated by the distances between the marks on the reference bar. With automatically controlled infrared LED marks, the imaging feature points have a uniform intensity profile and a high contrast with background. The calibration accuracy can be improved. The simulation and experiments have shown that the calibration accuracy can be comparable with the complex off-line calibration.


2019 ◽  
Vol 68 (10) ◽  
pp. 3563-3575 ◽  
Author(s):  
Zhen Liu ◽  
Suining Wu ◽  
Qun Wu ◽  
Chenggen Quan ◽  
Yiming Ren

2016 ◽  
Author(s):  
Zong-ming Liu ◽  
Dong Ye ◽  
Yu Zhang ◽  
Shan Lu ◽  
Shu-qing Cao

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