An integrated method for DEM simplification with terrain structural features and smooth morphology preserved
文献类型：期刊论文
| 作者 | Yu, Wenhao1,2; Zhang, Yifan2; Ai, Tinghua3; Chen, Zhanlong2 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE
 |
| 出版日期 | 2020-05-30 |
| 页码 | 23 |
| 关键词 | Terrain feature DEM filter cartography |
| ISSN号 | 1365-8816 |
| DOI | 10.1080/13658816.2020.1772479 |
| 通讯作者 | Yu, Wenhao(yuwh@cug.edu.cn) ; Zhang, Yifan(yifanzhang@cug.edu.cn) |
| 英文摘要 | As a key focus of cartography and terrain analysis, the simplification of a digital elevation model (DEM) is used to preserve the pattern features of the terrain surface while suppressing its details over multiple scales. Statistical filtering and structural analysis methods are commonly used for this process. The structural analysis method performs well in identifying terrain structural edges, while it tends to discard the smooth morphology of a terrain surface. In addition, the filter that aims to reduce noise on a surface may over-smooth the terrain structural edges. Therefore, to preserve both the terrain structural edges and smooth morphology, we propose to combine the techniques of statistical filtering and structural analysis. Specifically, all the critical elevation points and structural edges are first detected from the DEM surface by using the structural analysis method. Then, the iterative guided normal filter is used to smooth the generalized DEM with the guidance of the structure of the original surface. After this process, the terrain structure is retained in the smooth surface of the DEM. The experimental results with a real-world dataset show that our method can inherit the merits of both structural analysis and statistical filter in preserving terrain features for multi-scale DEM representations. |
| WOS关键词 | DIGITAL ELEVATION MODEL ; REPRESENTATION ; SLOPE |
| 资助项目 | National Natural Science Foundation of China[41701440] ; National Natural Science Foundation of China[41531180] ; Natural Science Foundation of Hubei Province[2018CFB513] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[CUG170640] ; National Key Research and Development Program of China[2017YFB0503500] ; State Key Laboratory of Resources and Environmental Information System[201801] |
| WOS研究方向 | Computer Science ; Geography ; Physical Geography ; Information Science & Library Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000541357900001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Hubei Province ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key Research and Development Program of China ; State Key Laboratory of Resources and Environmental Information System |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162336]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yu, Wenhao; Zhang, Yifan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China 2.China Univ Geosci, Sch Geog & Informat Engn, Wuhan, Peoples R China 3.Wuhan Univ, Sch Resource & Environm Sci, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Wenhao,Zhang, Yifan,Ai, Tinghua,et al. An integrated method for DEM simplification with terrain structural features and smooth morphology preserved[J]. INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE,2020:23. |
| APA | Yu, Wenhao,Zhang, Yifan,Ai, Tinghua,&Chen, Zhanlong.(2020).An integrated method for DEM simplification with terrain structural features and smooth morphology preserved.INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE,23. |
| MLA | Yu, Wenhao,et al."An integrated method for DEM simplification with terrain structural features and smooth morphology preserved".INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE (2020):23. |
入库方式： OAI收割
来源：地理科学与资源研究所
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