三维点云获取系统能够快速地获取目标物体的几何信息，生成大量点云，将目标的真实三维形态在计算机中可视化的展现出来。本文提出了一种新的三维点云数据获取的方法，应用在自主开发的基于激光影像的物体三维点云获取系统中，即标定激光面映射目标表面点的一维坐标，利用单像摄影测量后方交会和一维坐标的联合解算，得出目标点三维伪坐标。通过坐标逆向旋转恢复，得到真实的三维坐标数据，据此完整地建立目标物体的三维可视化模型。%The acquisition system of 3D point cloud can get the geometric information fast and provide a lot of point cloud data in order to show the object 3D shape on a computer .This paper gives a new method of getting 3D point cloud data that is applied to the self-made system of object 3D point cloud acquisition based on image with laser .The calibra-ted laser area reflects the one dimension coordinates of object surface .Through the combined calculation of one dimen-sion coordinate and resection of single photogrammetry the original 3D coordinates of object points can be obtained . Through reverse rotation we can get the true 3D coordinates and construct the complete 3D visual model of object.
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