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Position: Home > Articles > Study on Distinction of Water Bodies and Urban Information Based on Spectral Angle Method Hubei Agricultural Sciences 2012,51 (19) 4251-4253+4256

基于光谱夹角的水体与城市信息区分研究

作  者:
黄磊;周廷刚;陈尔东昊
单  位:
西南大学地理科学学院/三峡库区生态环境教育部重点实验室;中国人民大学环境学院;重庆市地理空间信息工程技术研究中心
关键词:
遥感影像;TM;光谱夹角;水体分类;城市分类
摘  要:
利用基于光谱夹角的方法来提取Landsat/TM影像中的水体与城市信息。研究发现,通过对TM影像的2-5波段进行光谱夹角计算之后,再利用Angle2、Angle3以及Angle4进行假彩色合成,合成后的影像减少了水体与城市之间的异物同谱现象,即有效减少了水体与城市信息提取过程中的相互干扰,从而增加了二者的区分度。
译  名:
Study on Distinction of Water Bodies and Urban Information Based on Spectral Angle Method
作  者:
HUANG Lei1,ZHOU Ting-gang1,2,CHEN Er-dong-hao3(1.School of Geography Sciences,Southwest University / Key Laboratory of the Three Gorges Reservoir Region's Eco-environment,Ministry of Education,Chongqing 400715,China;2.Engineering Technology Research Center of Geo-spatial Information in Chongqing,Chongqing 401147,China;3.School of Environment and Natural Resources,Renmin University of China,Beijing 100872,China)
关键词:
RS image;TM;spectral angle;water classification;urban classification
摘  要:
The spectral angle method was used to extract water and urban information from the Landsat/TM image.The results showed that calculating the spectral angle through band 2 to 5 of TM image,and followed by the Angle2,Angle3 and Angle4 hypothetical color merging,the merged image could reduce the phenomenon of same spectrum of foreign phenomenon between water and urban.This method effectively reduced the mutual interference during the extraction of water and urban information process,and increased the distinction degree between these two surface features.

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