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  4. 成都山地所知识仓储（2009年以前）
Statistical texture for contour interval choice of 1:50,000 DEMs

文献类型：会议论文

作者MingLiang, Luo1,2; Guoan, Tang1; Shijiang, Yan1; Youfu, Dong1
出版日期2008
会议日期June 28, 2008 - June 29, 2008
会议地点Guangzhou
关键词contour interval statistical texture hill DEMs grayscale class separability
卷号7146
DOI10.1117/12.813200
页码71462U
国家China
英文摘要How to choose contour interval in different geomorphologic type areas is a challenging job. In the paper a statistical texture method is used to measure the distance between Loess Hillock and Loess Ridge in Loess Plateau, which geomorphologic types are hills. The result shows that when the two areas classified into 25 classes or so with the contour interval 15 and 19 individually, the class separability seems more distinct than less than 25 classes. The results also shows that when the number of class is bigger than 25, the class separability decrease instead of increasing correspondingly. It seems that the too many classes used may produce more details in cost of decreasing class separability. And in the seven statisticalvariables, the number of polygons is the most stable while the mean grayscale, the standard variation ofgrayscale are the most sensitive when the contour interval changes. The result indicates that the contourinterval mainly influences by elevation and relative relief without more information which being dominant. By aid of an appropriate contour interval, the landform features can be easily extracted and is very helpful in delaminate the topography.
源文献作者SPIE
产权排序2
会议录Proceedings of SPIE - The International Society for Optical Engineering
语种英语
ISSN号0277786X
源URL[http://ir.imde.ac.cn/handle/131551/25947]  
专题成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
作者单位1.Key laboratory of Virtual Geographic Environment, Nanjing Normal University, Ministry of Education, Nanjing, Jiangsu, China;
2.Institute Of Mountain Hazards And Environment, Chinese Academy of Science, No. 9, Block 4, Renmingnan Road, Chengdu, Sichuan, China
推荐引用方式
GB/T 7714		 MingLiang, Luo,Guoan, Tang,Shijiang, Yan,et al. Statistical texture for contour interval choice of 1:50,000 DEMs[C]. 见:. Guangzhou. June 28, 2008 - June 29, 2008.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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