陈仁朋1,2,吴熠文1,2,余加勇1,2,何旷宇1,2,薛现凯1,2,李锋1,2.基于无人机影像序列的城市 精细化三维模型精度评估[J].湖南大学学报:自然科学版,2019,(11):172~180
基于无人机影像序列的城市 精细化三维模型精度评估
Method Accuracy Evaluations of Building Urban Detailed 3D Model Based onthe Unmanned Aerial Vehicle Image Sequences and Its Accuracy Evaluatios
  
DOI:
中文关键词:  无人机  倾斜摄影测量  三维模型  精度评估
英文关键词:Unmanned Aerial Vehicle(UAV)  oblique photogrammetry  3D reconstruction  accuracy evaluation
基金项目:
作者单位
陈仁朋1,2,吴熠文1,2,余加勇1,2,何旷宇1,2,薛现凯1,2,李锋1,2 (1. 湖南大学 建筑安全与节能教育部重点实验室湖南 长沙 410082 2. 湖南大学 土木工程学院湖南 长沙 410082) 
摘要点击次数: 46
全文下载次数: 23
中文摘要:
      为满足数字城市对精细化实景三维模型日益显著的需求,解决传统方法建模效率低的问题,提出一种基于无人机影像序列的城市精细化三维模型构建方法,通过现场25架次的航拍试验,构建了20个300 m×300 m测区范围的精细化模型和1个图书馆建筑精细化模型;利用检查点评估了全部精细化模型的精度,重点讨论了5种航拍高度和4种控制点选取方案对精细化模型精度的影响. 分析结果表明:随着航拍高度降低、控制点数量增加,构建的精细化模型误差减小、精度得到提高;测区范围精细化三维模型最高精度达到平面±3.4 cm、高程±3.1 cm,图书馆单体建筑精细化模型精度达到平面±3.4 cm、高程±1.5 cm;基于无人机序列影像的三维模型构建方法能够满足城市实景模型构建的精度要求,具有重要工程实用价值.
英文摘要:
      In order to satisfy the increasingly significant demand of the digital city for the detailed 3D model and solve the low efficiency problem of traditional modeling method, this paper summarizes a method of building the urban detailed model based on unmanned aerial vehicle (UAV) image sequences. Through the in-situ aerial photography test with 25 sorties, detailed models for 20 experiment area (300 m×300 m) and a library building were built. The accuracy of all detailed models were evaluated by field check points. The effect of 5 different flight heights and 4 different control points on the accuracy of the detailed models were discussed. The results show that the errors of the detailed models can be effectively decreased and the accuracy is improved by declining the flight height or increasing the number of control point. The highest accuracy of detailed models is ±3.4 cm in the plane and ±3.1 cm in the height, respectively. The accuracy of the detailed model for the library building is ±3.4 cm and ±1.5 cm, respectively. The method of building the urban detailed model using UAV image sequences can satisfy the accuracy requirement of the urban real scene model, which has great practical values in practical engineering.
查看全文  查看/发表评论  下载PDF阅读器
关闭