The Geometrical Distortion of Discrete Global Grid in Multi-Resolution Expression
文献类型：会议论文
| 作者 | Ming T. ; Zhuang D. F. ; Soc Ieee Computer |
| 出版日期 | 2009 |
| 关键词 | discrete global grid multi-resolution expression geometrical distortion |
| 页码 | 318-321 |
| 英文摘要 | Multi-resolution expression is the import characteristic of discrete global grid. The geometrical distortion in multi-resolution expression can decide the ability of multi-scale transformation of discrete global grid. It is also the influencing factor of stability of discrete global grid. The source of geometrical distortion in multi-resolution expression was analyzed in this article. The method of expressing low-resolution partition by high-resolution partition in different parting depth was researched. The difference of error between expression by partition in steady depth and expression by direct calculation was analysed. Four representative discrete global grids were selected as objects of study. They were QTM, Synder, SQT and STQIE. To every kind of discrete global grid, the quantity of area distortion and side distortion of parting triangle between actual partition and ideal partition was calculated. Based on the data of area and side and their error of each grid, the statistical indicators such as mean value standard deviation, relative range, Relative error of mean were analyzed. Finally the rules of area distortion in multi-resolution expression of different kind of discrete global grid were gotton. And it was also concluded that the influence of side distortion was few in multi-resolution expression. |
| 收录类别 | CPCI |
| 会议录出版者 | Ieee Computer Soc |
| 语种 | 英语 |
| ISBN号 | 978-0-7695-3682-8 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25232]  |
| 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 | Ming T.,Zhuang D. F.,Soc Ieee Computer. The Geometrical Distortion of Discrete Global Grid in Multi-Resolution Expression[C]. 见:. |
入库方式： OAI收割
来源：地理科学与资源研究所
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