摘要
针对双目视觉系统在远距离目标点三维坐标测量中的问题,首先,基于双目视觉测量系统的原理,分析了双目视觉中相机标定和三维定位过程的主要误差来源;然后,推导了双目视觉三维定位测量系统与相机参数、特征点匹配精度、像元大小、焦距、基线长度与测量距离之间的导数关系。最后,通过仿真实验得到各参数对测量系统定位误差的影响。实验结果表明,该误差模型对双目视觉测量系统的设计具有一定的指导意义。
Aiming at the problem of binocular vision system in three-dimensional coordinate measurement of remote target point.First,this article analyzes the main error sources of camera calibration and three-dimensional positioning process in binocular vision are analyzed based on the principle of binocular vision measurement system.Then,derivative relations between binocular vision three-dimensional positioning measurement system and camera parameters,matching accuracy of feature points,pixel size,focal length,baseline length and measurement distance are derived.Finally,the influence of each parameter on the positioning error of the measurement system is obtained through the simulation experiment.The experimental results show that the error model has a certain guiding significance for the design of binocular vision measurement system.
作者
刘胜道
邢成聪
周国华
Liu Shengdao;Xing Chengcong;Zhou Guohua(School of Electrical Engineering,Naval University of Engineering,Whuhan,Hubei 430033,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2021年第14期431-437,共7页
Laser & Optoelectronics Progress
关键词
视觉光学
双目视觉
精度分析
三维坐标测量
远距离测量
visual optics
binocular vision
precision analysis
three-dimensional coordinate measurement
remote measurement
