三维激光扫描与倾斜摄影测量技术融合的建模效果研究

Research on Modeling Effect of Fusion of 3D Laser Scanning and Oblique Photogrammetry

实景三维模型是工程三维设计的数据基础,但简单、粗糙的建模已无法满足使用需求,需寻找新的路径对建筑测绘进行优化。介绍了三维激光扫描技术与倾斜摄影测量技术的关键及融合,将某牌坊作为三维建模对象,展开二者融合的建模实验,通过架站式三维激光扫描技术,对目标点云数据进行获取,合理利用倾斜摄影测量技术,对目标影像数据进行采集,利用架站式激光雷达进行扫描,形成激光点云数据,对比其他点云数据。此数据精度较高,能够有效提升倾斜摄影技术获取影像的清晰度,说明二者融合可搭建出纹理细致、工作效率高、盲区小、细节进一步提升的三维模型,能够满足生产需求,提升建筑测绘的可靠性。

The real 3D model is the basis of engineering 3D design data.Simple and rough modeling can no longer meet the needs of use,so it is necessary to find a new way to optimize the architectural mapping.The study introduces the key and fusion of 3D laser scanning technology and oblique photogrammetry technology.A certain archway is taken as the 3D modeling object,and the modeling experiment of the fusion of the two is carried out.The target point cloud data is acquired through the 3D laser scanning technology of the gantry,the slanted photogrammetry technology is reasonably used to collect the target image data and scan by the gantry lidar,laser point cloud data is formed,and it is compared with other point cloud data.The high accuracy of this data can effectively improve the clarity of images obtained by oblique photography technology,indicating that the integration of the two can build a three-dimensional model with fine texture,high working efficiency,small blind area and further improvement of details,which can meet the production demand and improve the reliability of architectural surveying and mapping.