| 交叉环绕航线下的城市级复杂建筑物实景三维建模 |
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| 引用本文： | 王凯奇,方军,王振霖,郭海宾,杨振升.交叉环绕航线下的城市级复杂建筑物实景三维建模[J].测绘通报,2022,0(9):80-85. |
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| 作者姓名： | 王凯奇 方军 王振霖 郭海宾 杨振升 |
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| 作者单位： | 1. 湖南科技大学测绘遥感信息工程湖南省重点实验室, 湖南 湘潭 411201;2. 湖南科技大学地理空间信息技术国家地方联合工程实验室, 湖南 湘潭 411201;3. 湖南科技大学地球科学与空间信息工程学院, 湖南 湘潭 411201;4. 长沙理工大学公路工程教育部重点实验室, 湖南 长沙 410114 |
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| 基金项目： | 湖南省自然科学基金创新研究群体项目(2020JJ1003);武汉大学测绘遥感信息工程国家重点实验室开放研究基金 (19I04);湖南省自然科学基金(2020JJ4295);湖南省教育厅资助科研项目(19C0730);长沙理工大学公路工程教育部重点实验室开放基金(kfj170203) |
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| 摘 要： | 目前各省、市正在加快推进实景三维中国建设,其中城市级实景三维建模相较于地形级,精度要求更高,展示内容更丰富,工作量更大。针对高低错落且结构复杂的建筑物场景,常用的提高无人机航线重叠度的方法,改进效果不明显,仍存在较多拉花变形区域,且会导致影像数量增加、飞行和建模过程更加耗时、生产成本增大的问题。因此,本文提出了无人机交叉环绕航线下的城市级实景三维建模方法,选取典型试验样区进行航摄建模试验,并与采用常规五向航线航摄的方法进行建模效率、质量、精度方面的对比分析。结果表明,交叉环绕航线航摄方法可大幅减少影像数量,节省空三计算和建模时间,提升整体建模效率;且在建筑物的门顶雨篷、玻璃窗户等难点区域,建模质量更好,整体精度更高,满足相关标准规范要求。
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| 关 键 词： | 无人机 交叉环绕航线 复杂建筑物 实景三维建模 精度评定 |
| 收稿时间： | 2022-02-14 |
3D modeling of city-level complex buildings based on cross-around route |
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| WANG Kaiqi,FANG Jun,WANG Zhenlin,GUO Haibin,YANG Zhensheng.3D modeling of city-level complex buildings based on cross-around route[J].Bulletin of Surveying and Mapping,2022,0(9):80-85. |
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| Authors: | WANG Kaiqi FANG Jun WANG Zhenlin GUO Haibin YANG Zhensheng |
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| Abstract: | At present, provinces and cities are accelerating the construction of national 3D real scene. Among them, the city-level real 3D modeling has higher accuracy requirements, richer display content and greater workload than the terrain-level. In view of the high and low dislocation and complex structure of the building scene, the improvement effect is not obvious by improving the overlap of UAV routes. There are still many flower deformation areas, which will increase the number of images, time-consuming flight and modeling process, and increase the production cost. Therefore, a 3D modeling method of urban real scene based on UAV cross-around route is proposed. The typical experimental sample area is selected for aerial photography modeling experiment, and the modeling efficiency, quality and accuracy are compared and analyzed with the conventional five-way route aerial photography method. The results show that the cross-around route aerial photography method can greatly reduce the number of images, save the time of aerial triangulation calculation and modeling, and improve the overall modeling efficiency. Moreover, the modeling quality is better and the overall accuracy is higher in the difficult areas such as the roof canopy of the building and the glass window, which meets the requirements of relevant standards and specifications. |
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| Keywords: | UAV cross-around route complex buildings three-dimensional modeling of real scene accuracy evaluation |
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