A new method of DEM generation from contour line
文献类型：EI期刊论文
| 作者 | Yue Tianxiang |
| 发表日期 | 2012 |
| 关键词 | Contour measurement Control Forestry Optimization |
| 英文摘要 | This paper proposed a new method (HASM-OC) to construct DEM from contour lines based on the optimal control. Presently, HASM (high accuracy surface modeling) which is used to handle discrete points only. Firstly a regular grid points' are set up, on which each elevation will be predicted using the new method, each grid point represents the square grid area surrounding itself. Secondly, contour lines are used to construct contour trees, which are then used to get the bound constraints for each grid points. Finally, integrating the HASM equations, a numerical optimization problem is formed. By solving the optimization problem DEM can be secured, which is continuous and of high fidelity to original contours. A real contour lines example is given, and results from HASM-OC is compared with that from Hutchinson method based on TPS (thin plate spline), the former is superior to the latter in DEM construction from real contour lines. |
| 出处 | Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University
 |
| 卷 | 37期:4页:472-476 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/27673]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yue Tianxiang. A new method of DEM generation from contour line. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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