摘要
在交比不变原理基础上,提出了基于共面靶标的线结构光标定方法。对标定方法中各个计算过程、进行了鲁棒性分析,进而设计了相对应的平面靶标和实验流程。该方法可以降低图像处理过程所引入的误差,减少多次交比不变计算标定点所带来的累积误差,得到多组高精度的标定点,从而提高结构光系统的标定精度。定量实验结果表明,该标定方法可得到0.3334mm的测量精度。
A new calibration method of structured light system using a coplanar object is proposed based on invariance of cross ratio.Robustness analysis about every processing is discussed,and the corresponding coplanar target and implementation are designed.The calibration method can generate the sufficient calibration points with high accuracy for structured light system,which decrease error from image processing and cumulative computing according to invariance cross ratio.Quantitative result shows that this method...
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2009年第8期1063-1069,共7页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60772124)
关键词
结构光系统
标定
交比不变
共面靶标
structured light system
calibration
corss ratio
coplanar target
