摘要
分析了使用一台摄影机和一个平面镜拍摄三维空间运动的可行性,首先,提出了几种拍摄方案,并对各方案进行了实用性分析,选取了其中一种方案进行理论与实际对照研究;其次,使用DLT方法,给出了空间点的坐标和拍摄底片上的二维坐标间的变换关系;再次,用数码相机进行了小范围的实例拍摄,并使用Mathematica软件编程,解析出拍摄对象的三维坐标;通过对比计算结果和空间点的实际位置,证明此方法是可行的,且相对误差小于5%.
In this paper, the feasibility of photography in three dimension with one high speed camera and one mirror was analysed. Firstly, three methods were presented, and one method was selected to make theoritic and practical analyses. Secondly, coordinate transformation was given between a space point and the corresponding picture point. Thirdly, some photographies were carried out with digital camera, and the coordinates of space point were solved using Mathematica program. Through comparison between calculation results and the measurements of the space point coordinates, the relative error is less than 5%,which means the method is feasible.
出处
《太原理工大学学报》
CAS
2004年第5期533-536,共4页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(19972045)
关键词
DLT
坐标变换
高速摄影
DLT
coordinate transformation
high-speed photography
