基于全站仪及Lensphoto系统复杂地形影像图测绘研究

Complex terrain survey research based on total stations and lensphoto system

随着多基线近景摄影测量研究的深入,非量测数码相机在近景摄影测量中应用越来越广。以某实验区为例,旨在将控制测量与摄影测量相结合,通过制订多基线近景摄影测量外业技术方案,利用全站仪、数码相机联合测量获取空间数据、影像数据,应用Lensphoto软件系统实现空三匹配、空三交互、加密匹配生成点云数据,得到三维模型点云数据以及3D景观图的地形影像图。同时,对地形图进行精度验证,满足三等地形测量规范要求,获取传统测量难以比拟的试验效果。该方法具有快速高效的特点,解决传统摄影测量工作繁复的问题。

With the multi-baseline study of close-range photogrammetry,the non-metric digital camera is used more widely in close-range photogrammetry.Associating the control survey and photogrammetry,the research formulates the technical scheme of multi-baseline close range-photogrammetry in experimentation area,combined with total station and digital camera system to survey the spatial,image data.This paper applies Lensphoto software to solving the image data and acquires 3D point cloud data model and 3D landscape map after aerial triangulation matching,interactive aerotriangulation and photogrammetric matching.It is difficult to present with traditional method.In accuracy verification,the accuracy of this experiment can meet the requirements of the three topographic survey.Data acquisition and processing is at a fast speed which solves the complicated problem of traditional photogrammetry in an efficiency way and saves a large amount of manpower and material resources.