一种新的360°三维测量系统及标定技术  

A 360° Three-Dimensional Measurement System and Its Calibration

作　　者：吴庆阳[1] 曾增[1] 张佰春[1] 吴泽俊[1] 郑国梁[1] 李景镇[1] 

机构地区：[1]深圳大学电子科学与技术学院深圳市微纳光子信息技术重点实验室,广东深圳518060

出　　处：《中国激光》2017年第4期142-149,共8页Chinese Journal of Lasers

基　　金：国家自然科学基金仪器专项(61027014);国家自然科学基金青年基金(11109052);深圳市科技计划(JCYJ20140418091413574);深圳市战略性新兴产业发展专项(JCYJ20120614085204873)

摘　　要：针对现有的360°三维测量系统结构复杂、标定要求高、测量时间长等问题,提出了一种结构简单、测量速度快的单传感器360°三维测量系统和一种操作方便、精度较高的标定方法。该系统由条纹投影系统、摄像机、两个前表面反射镜组成。测量时,物体点云数据由三部分组成,前表面通过摄像机获取,对应于所拍图片的中间区域,左右两面分别由左右两块前表面反射的平面镜获取,分别对应图片的左右两区域。先对不含反射镜的系统进行标定,然后加入两套反射镜,利用透过式投影屏完成对左右两套系统的二次标定,获得全局坐标系下的物体三维数据。实验表明,该系统搭建成本较低,标定精度较高,重建速度快,适合现场标定。Due to the complex system, high calibration standard and long measuring time in the current multi-sensor three-dimensional （3D） measurement systems, we present a simple high speed single sensor 360° 3D measurement system and a convenient high-precision calibration method. The system consists of a projector apparatus, a CCD and two front surface mirrors. The point cloud data of the object is obtained from three parts. The front surface is acquired directly from CCD, corresponding to the middle area in the picture. The rest two parts are collected from the two mirrors respectively, corresponding to the left and right areas in the picture. Firstly the system without mirrors is calibrated. Then the right and left systems containing the front surface mirrors can separately be calibrated with a double-sided projector screen. The continuous surface point cloud data under the global coordinates is obtained eventually. The experimental result shows that the proposed system has low cost, high precision and high reconstruction speed, and it is applicable to field calibration.

关 键 词：测量 三维测量 结构光 标定 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]