摘要
使用无人机倾斜摄影实景三维模型进行立面测绘时,常规倾斜摄影方式下,建筑物底部或侧面信息易丢失造成拉花、空洞,精度取决于三维模型精细程度。结合具体实例,探索一种使用无人机进行建筑物立面拍摄,仅使用实景三维模型提取少量特征点对立面实际尺寸进行约束,生成立面高分辨率正射影像图后进行立面图生产的方式。结果表明,该方法内、外业工作量小,数据可以直观反映建筑物立面情况,编辑的立面图满足相关精度要求。
When the UAV(Unmanned Aerial Vehicle)tilting photography 3D model is used for elevation surveying,the information on the bottom or side of the building is easy to be lost,resulting in glitches and holes under the conventional tilting photography method,and the accuracy depends on the precision of the 3D model.Combined with specific examples,this paper explores a method of using UAV to shoot building facades,extracting a small number of feature points to constrain the actual dimensions of the building elevation by using a real 3D model,and generating high-resolution orthophoto map of elevation for elevation production.The results show that the internal and external workload of this method is small,and the data can directly reflect the situation of building elevation.The edited elevations meet the relevant accuracy requirements.
作者
何畅
HE Chang(Zhangzhou Institute of Surveying and Mapping,Zhangzhou 363000)
出处
《福建建筑》
2025年第7期124-127,共4页
Fujian Architecture & Construction
关键词
立面测绘
无人机
三维模型
正射影像图
近景摄影
Elevation surveying
UAV
3D model
Orthophoto map
Close-range photography
