基于模板分析窗口的地形特征分析模型设计与实现  

Design and implementation of the geomorphology feature analysis model based on template analyzing widget

作　　者：柯希林 王永生[3] 何列松[1,2] 高凯 王强[1,2] KE Xilin;WANG Yongsheng;HE Liesong;GAO Kai;WANG Qiang(Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;State Key Laboratory of Geo-Information Engineering,Xi'an 710054,China;Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]地理信息工程国家重点实验室,陕西西安710054 [2]西安测绘研究所,陕西西安710054 [3]信息工程大学,河南郑州450001

出　　处：《测绘科学与工程》2020年第6期60-65,共6页Geomatics Science and Engineering

摘　　要：地形特征通常描述地形类型及分布、地势走向、地面起伏、以及地形海拔和相对高度。地形特征是人们正确分析、判定、以及描述区域地形的基础,也是地形分析和应用的基础。本文提出了基于3×3栅格像元模板分析窗口的地形特征分析模型和相关算法,实现了地形特征点、地形骨架线、地形坡度坡向分布等信息的快速自动提取,结合典型地形进行了可视化实验验证,提高了基于地形特征的地理环境快速分析和认知能力。Terrain and geomorphological characteristics usually describe the terrain types and distribution,terrain trend,ground undulation,terrain elevation and relative altitude.Terrain characteristics are necessary to correctly analyze,identify and describe regional terrain,and also the foundation for terrain analysis and applications.In this paper,the analysis model and relative algorithm based on the 3×3 grid pixel template analyzing widget are presented,and the terrain feature points,terrain skeleton lines,terrain fluctuation rate,terrain cutting degree,slope and aspect can be extracted automatically and quickly.Visualization experiment is carried out using the typical terrain data to verify this algorithm,which can improve the ability of quick analysis and cognition of geographical environment based on terrain features.

关 键 词：地形 地形分析模型 地貌要素 地貌起伏模型 坡度坡向模型 

分 类 号：P208[天文地球—地图制图学与地理信息工程]