节点文献
图像对应点选择对摄像机自标定精度的影响
Influences on Self-calibration Precision with Different Corresponding Points
【摘要】 首先以传统标定方法为例,通过实验得出:即使相同设置的摄像机,如果控制点的选择不同,得出的标定参数也不相同;然后,从理论上分析了摄像机自标定与对应点选择之间的关系,并通过实验验证了选择不同对应点对自标定参数的精度影响。研究结果表明,在自标定问题中,对应点选取应该尽量控制在后续的测量范围内,否则会严重降低摄像机标定精度。
【Abstract】 It is first verified experimentally that the calibrated parameters by using different control points are also different for a given configuration of the camera based on the traditional method,and the relationship between camera self-calibration and choosing of the corresponding points is analyzed theoretically.Moreover,the influences of choosing different corresponding points on precision of self-calibrated parameters are validated experimentally.Experiment results showed that selected corresponding points in self-calibration should lie in the space as near as possible to the range of the measured object for improving calibration precision.
【Key words】 camera calibration; visual measurement; control point selection; pinhole camera model;
- 【文献出处】 山西大学学报(自然科学版) ,Journal of Shanxi University(Natural Science Edition) , 编辑部邮箱 ,2014年03期
- 【分类号】TP391.41
- 【被引频次】3
- 【下载频次】116