基于单次成像的三维形貌拼接技术  

3D SURFACE MOSAIC TECHNOLOGY BASED ON SINGLE IMAGE

作　　者：邾继贵[1] 王大为[1] 任同群[1] 叶声华[1] 

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072

出　　处：《机械工程学报》2007年第6期186-189,193,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(50305024)。

摘　　要：针对大型物体的三维形貌测量,研究基于辅助靶标的三维形貌拼接技术,并在此基础上提出单摄像机单次成像求解转换矩阵的方法。该方法通过单摄像机单次成像,结合控制点的边长约束,求解出全局坐标系同局部测量坐标系的转换关系,进而将局部测量数据统一到全局坐标系下,实现拼接。此方法避免采用单摄像机多摄站测量时带来的繁琐操作以及产生的相关问题,大大提高拼接的速度,并且可以保证较高的精度。A 3D image mosaic technology based on auxiliary target is proposed aiming at 3D surface measurement of big object, and a method using single image to gain the transition matrix is also proposed. This method uses single image from one camera, and gains the transition matrix between global measurement coordinate and the auxiliary target coordinate by using projective geometry and the restraint of length between control points, and finally completes mosaic. This method avoids the complex operation by using single camera multistation system. It raises the mosaic speed and has higher precision.

关 键 词：曲面拼接 三维形貌测量 计算机视觉 

分 类 号：TH702[机械工程—仪器科学与技术] TH711[机械工程—精密仪器及机械]