多源数据融合构建精细三维模型的关键技术  

Key Technology of Fine 3D Model Construction with Multi-source Data Fusion

作　　者：邹娟茹[1] 孙兴华 ZOU Juanru

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]陕西省公路勘察设计研究院,陕西西安710068

出　　处：《地理空间信息》2021年第12期131-134,I0004,共5页Geospatial Information

基　　金：杨凌职业技术学院自然科学研究基金项目(A2018040)。

摘　　要：通过分析单一测绘数据在构建实景三维模型中的各种弊端,引入机载LiDAR点云、正射影像与倾斜摄影测量等多源数据融合构建精细三维模型关键技术的探讨。借助某地房地一体项目,对多源数据融合技术进行了实测与精度评定。结果表明融合后的三维模型结构纹理更清晰、完整,地物检查点高程中误差得到了极大的提高,完全满足1∶500大比例尺测图项目的规范要求,该融合技术为同类项目的设计与实施提供了参考。Based on the analysis of the disadvantages of single surveying and mapping data in the construction of real 3D model, we introduced the key technologies of airborne LiDAR point cloud, orthoimage and oblique photogrammetry to build fine 3D model, and with the help of a real estate integration project, measured and evaluated the accuracy of multi-source data fusion technology. The results show that the texture of 3D model after fusion is clearer and more complete, and the error in elevation of the ground feature inspection point is greatly improved, which fully meets the specification requirements of 1∶500 large scale mapping project. The fusion technology can provide a reference for the design and implementation of similar projects.

关 键 词：LIDAR点云 正射影像 倾斜摄影 多源数据融合 精度评定 

分 类 号：P231[天文地球—摄影测量与遥感]