Three dimensional Douglas-Peucker algorithm can be use to get the different detailed relief feature points based on the three dimensional discrete points and then can achieve the relief automat.
三维道格拉斯算法基于三维离散点数据，通过提取不同详细程度的地形特征点来实现地貌自动综合，是地貌自动综合的新方法。
Terrain Characteristic Point Extraction and Classification from Contour DEM
等值线DEM地形特征点提取与分类
The physical characteristics, especially the surface features, of an area.
地形，地貌某一地区的自然特征，尤指地表特点
Characteristics of deformation anomaly obtained from tilt and strain observations before the Wenchuan M_S8.0 earthquake
汶川8.0级地震前定点形变异常特征
The Morphology of Brahmophthalma Hearseyi White and the Characters in Suzhou
青球箩纹蛾的形态特征及在苏州地区的发生特点
Take a walk through your site looking for signs of its pre-urban landscape: topography, for example, or water features.
漫步于研究点，找寻建成城市前的风景：例如地形或水源特征。
RESEARCH ON REPRESENTATION FEATURES OF COLOR,SHAPE AND TEXTURE OF PICTURES;
图形颜色、形状及质地表征特性的研究
Fractal Research on Seamount Topography in the West Pacific Ocean
西太平洋海域海山地形分形特征研究
Multifractal arithmethic for watershed topographic feature
流域地貌形态特征多重分形算法研究
A DESCRIPTION OF THE MORPHOLOGICAL CHARACTERS OF THE EGGS AND LARVAE OF THE BLUE SPOTTED MACKEREL, SCOMBEROMORUS NIPHON1US (CUVIER & VALENCIENNES)
蓝点?鲛卵子和仔、稚?形态特征的观察
Cranio-facial Reconstruction Based on Landmarks Deformation
基于特征点变形的颅面复原算法研究
Point Cloud Feature Extraction and Simplification in Geographic Environment;
地理场景中点云特征提取与简化研究
On the Characteristics and Improvement of the Land Acquisition System in China
关于我国土地征收制度的特点与完善
Most of these features can be described deterministically.
大多数形态特征都可以确切地被描述。
Morphological Information and Taxonomy of Bedford’s Vole
沟牙田鼠的形态特征及分类地位探讨
Geoburried-hills Reservoir Characteristics and Forming-mechanism in Chexi Area;
车西地区古潜山储层特征与形成机制
Investigation of Loess Positive and Negative Terrain Based on DEMs;
基于DEM的黄土正负地形特征研究
Tectonic Characteristic in the West Part of Dingri-Gamba Basin, Tibet;
西藏定日—岗巴盆地西部构造变形特征
The Study on Fractal Characteristics of Land Coverage Using Quickbird Date;
基于Quickbird数据的土地覆盖分形特征研究