| DEM多尺度表达与地形结构线提取研究 |
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| 引用本文： | 杨族桥,郭庆胜,牛冀平,肖小红.DEM多尺度表达与地形结构线提取研究[J].测绘学报,2005,34(2):134-137. |
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| 作者姓名： | 杨族桥 郭庆胜 牛冀平 肖小红 |
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| 作者单位： | 黄冈师范学院,计算机系,湖北以黄州,438000;武汉大学,资源与环境科学学院,湖北,武汉,430079 |
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| 基金项目： | 国家自然科学基金
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湖北省教育厅科研项目 |
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| 摘 要： | 提升方法是一种新型小波变换方法,比小波理论中的多分辨分析更加有效.介绍提升方法实现的原理和构造的三个步骤,将提升方法应用于DEM数据的多尺度表达;简述结构算法并重点说明对该算法的改进,最后给出利用改进的结构算法在多尺度DEM数据中提取地形特征线的方法和实验过程.
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| 关 键 词： | 提升方法 多尺度表达 地形特征线 结构算法 |
| 文章编号： | 1001-1595(2005)02-0134-04 |
A Study on Multi-scale DEM Representation and Topographic Feature Line Extraction |
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| YANG Zu-qiao,GUO Qing-sheng,NIU Ji-ping,Xiao Xiao-hong.A Study on Multi-scale DEM Representation and Topographic Feature Line Extraction[J].Acta Geodaetica et Cartographica Sinica,2005,34(2):134-137. |
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| Authors: | YANG Zu-qiao GUO Qing-sheng NIU Ji-ping Xiao Xiao-hong |
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| Abstract: | Lifting scheme is a new wavelet transformation method, which is more effective than the multi-resolution analysis of wavelet theory. This paper presents the fundamentals and the three constructing steps of lifting scheme briefly. And it uses lifting method to process DEM data with multi-scale representation. It introduces structure algorithm briefly and emphasizes the improved structure algorithm in detail; finally it shows the experimental method and process of extracting the characteristic line of terrain from the multi-scale DEM data by using the improved structure algorithm. |
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| Keywords: | lifting scheme multi-scale representation terrain characteristic line structure algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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