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1·Digital Terrain Model is the basic and core module of the railway route CAD system.

数字地面模型是铁路线路CAD的基础核心模块。

2·Digital terrain model (DTM) is an important component of a resource information system.

模型(dtm)是资源信息系统中的重要组成部分。

3·The methods to obtain the Digital Terrain Model (DTM) from contour map by scan digitizing were studied.

本文还研究了通过扫描数字化等高线图建立数字地形模型的方法。

4·This is an attempt to give a method of railway profile automation design by means of digital terrain model.

本文给出了一种用数字地面模型进行铁路纵断面自动设计的方法。

5·Image matching is the key stage for digital Terrain Model (DTM) automatical aquisition using with digital images.

利用数字影像自动提取数字地形模型(dtm)的关键是影像匹配。

6·A method is presented to implement real-time 3d road animation coupled with road design data and digital terrain model (DTM).

研究了一种用数字地面模型和公路设计数据实现实时三维动画的方法。

7·In this paper the methods and experiments for applying the digital terrain model(DTM) to improve the classification accuracy are introduced.

本文着重介绍在遥感影象分类中应用数字地面模型（DTM）改正地物反射光谱中地形影响的方法和试验。

8·To counter the splice problem of digital terrain model (DTM) the paper puts forward the algorithm of cutting out of splice line to triangle network.

该文针对数字地面模型(dtm)的拼接问题提出了基于拼接线对三角网进行裁减的算法，并对其基本原理及主要过程进行了详细介绍。

9·Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.

对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。

10·High resolution digital terrain model derived up from LiDAR point clouds can provide more details of microrelief information for tidal wetland environment researches.

应用激光雷达数据生产高精度的数字地面模型，可为滨岸环境的研究提供精细的微地貌数据。