摘要
[目的]基于三维激光扫描和倾斜摄影进行三维实景建模的方法各有优缺点：三维激光扫描精度高,但测量范围小,无人机摄影测量范围广,但是容易缺失数据。[过程与方法]针对以上问题,综合运用两种测量技术获取空间数据,提高测区三维模型精度,由此开展应用研究。[结论]研究表明,两类技术综合运用可实现测区三维数据完整采集;通过统一控制点坐标系和迭代最临近点配准算法可有效融合两类点云,能构建高时效、高精度、高分辨率的三维模型;该方法提高了测量作业的自动化程度和影像清晰度,可应用于多种场合的测量。
Three-dimensional laser scanning and tilt photography have their own advantages and disadvantages： high accuracy ofthree-dimensional laser scanning, but the measurement range is small, UAV photogrammetry range is wide, but easy to missing da-ta. In view of the above problems, two kinds of measurement techniques are used to acquire spatial data to improve the accuracy ofthe three-dimensional model of the survey area, and then applied research is carried out. The research shows that the integrated ap-plication of the two technologies can realize the complete collection of 3 D data in the survey area; the unified control point coordi-nate system and the iterative nearest neighbor point registration algorithm can effectively fuse the two types of point clouds, and canbuild a high-efficiency, high-precision, high-resolution 3 D model; the method improves the automation of the measurement opera-tion and image clearance. It can be applied to many kinds of occasions.
作者
许一帆
郭杰
XUYi-fan, GUO Jie （Army Engineering University, Nanjing 210007, China）
出处
《电脑知识与技术》
2018年第10期282-285,288,共5页
Computer Knowledge and Technology
基金
2015年中国博士后基金项目（项目编号：2015M582790）,基金项目名称“基于大数据的三维渡场立体侦察与辅助决策技术研究”
关键词
倾斜摄影
三维激光扫描
实景模型
复杂地形地物测量
oblique photography
three-dimensional laser scanning
digital elevation model
complex topographic survey
