| 无人机数字高程模型精度评价分析研究 |
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| 引用本文： | 陈昆华,周国清,易柳城,何素楠. 无人机数字高程模型精度评价分析研究[J]. 城市勘测, 2014, 0(1): 99-102 |
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| 作者姓名： | 陈昆华 周国清 易柳城 何素楠 |
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| 作者单位： | [1]桂林理工大学测绘地理信息学院,广西桂林541004 [2]广西空间信息与测绘重点实验室,广西桂林541004 [3]中南大学地球科学与信息物理学院,湖南长沙410083 |
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| 基金项目： | 国家自然科学基金（41162011） |
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| 摘 要： | 数字高程模型是建立三维GIS的主要数据，当前对DEM分辨率的研究缺乏足够的质量评价指标，在大多数GIS分析应用中DEM分辨率的确定存在着随意性与盲目性。本文从数据源着手，分析从无人机影像提取DEM的方法，综合考虑DEM分辨率及数据量，引入设计中误差及地表粗糙度等因子，通过不同比例尺下的无人机影像DEM分辨率的质量对比，选取合适的评价指标，实验证明所选评价指标对DEM分辨率的确定具有一定的可行性和适用性。
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| 关 键 词： | DEM 中误差 地表粗糙度 无人机 |
The Further Study of Assessing the Accuracy of UAV DEMs |
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| Chen Kunhua,Zhou Guoqing,Yi Liucheng,He Su-nan. The Further Study of Assessing the Accuracy of UAV DEMs[J]. Urban Geotechnical Investigation & Surveying, 2014, 0(1): 99-102 |
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| Authors: | Chen Kunhua Zhou Guoqing Yi Liucheng He Su-nan |
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| Affiliation: | 1. Institute of Surveying and Mapping Geographic Information, Guilin University of Technology, Guilin 541004, China ; 2. Key Laboratory of Spatial Information and Surveying and Mapping, Guilin 541004, China; 3. Institute of Earth Science and Physics Information Technology ,Central South University, Changsha 410083 ,China) |
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| Abstract: | DEMs is the main information source for three-dimensional visual model ,The current study of DEM reso-lution is not too much ,and lack of adequate quality evaluation index ,the determination of DEM resolution have random-ness and blindness in Most of GIS application analysis .This paper started from the data source to analyze images form the UAV（ Unmanned aerial vehicle ） DEM extraction method ,comprehensive consideration of DEM resolution and data a-mount ,the introduction of MSE （ mean square error ） and surface roughness factor ,and put forward the contrast of different scale UAV image quality evaluation on the DEM resolution ,The experiment proves that the selected evaluation index for the determination of DEM resolution has certain feasibility and applicability . |
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| Keywords: | DEM MSE the surface roughness UAV |
| 本文献已被 CNKI 维普 等数据库收录！ |
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