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遥感技术与应用  2003, Vol. 18 Issue (2): 95-98    DOI: 10.11873/j.issn.1004-0323.2003.2.95
研究与应用     
用混合像元线性模型提取中等植被覆盖区的粘土蚀变信息
刘 成1,王丹丽2,李笑梅3
(1.沈阳航空工业学院信息经济系,辽宁沈阳 110034;2.东北大学资源与土木工程学院,辽宁沈阳 110004;3.沈阳航空工业学院CAD/CAM中心,辽宁沈阳 110034)
Extracting Clay Alteration Information of Medium Vegetation Covered Areas Based on Linear Model of Spectral Mixture Analysis
LIU Cheng1, WANG Dan-li2, LI Xiao-mei3
(1.Department of Information and Economy,Shenyang Institute of Aeronautical Engineering,Shenyang110034,China; 2.School of Resources and Civil Engineering,Northeast University,Shenyang110004,China;3.CAD/CAM Center,Shenyang Institute of Aeronautical Engineering, Shenyang 110034, China)
 全文: PDF 
摘要:

基于混合像元线性分解模型,针对中等植被覆盖区提出了一种提取粘土蚀变信息的新方法。主要分3步实现:用混合像元线性分解模型提取植被覆盖丰度;对线性模型进行完善,并依此重构不含有植被信息的新的多波段图像;利用TM5/TM7增强粘土蚀变信息。经验证,提取的植被信息以及粘土类蚀变信息与实际吻合较好,与基于比值-主成分分析的方法相比有明显的优越性。
 

关键词: 混合像元线性分解中等植被覆盖植被丰度卧龙泉粘土类蚀变    
Abstract:

A new method for extracting clay-alteration information from ETM images was applied in three main steps. First, based on the linear unmixing model of MSA, this paper managed to get the vegetation abundance of the study area; second, making some supplements to the basic linear model of MSA, a new multi-band data set was reconstructed containing no vegetation information; third, get the clay-alteration information by making TM5/TM7 ratio image in which the shadow information was dramatically compressed. Field survey and other information have shown that the practice of this paper is right and can be adopted to extract thematic information for such areas as with medium vegetation cover. Compared with the methods mainly based on PCA~ratio combination, this method is more effective and offers a more universal frame to follow to extract clay-alteration information in medium vegetation areas.

Key words: Linear decomposition of mix pixel    Medium vegetation cover    Vegetation abundance    Wo-longquan    Clay-alteration
收稿日期: 2002-10-27 出版日期: 2011-11-23
:  TP 79  
作者简介: 刘成(1967-),男,博士,主要从事遥感图像处理以及GIS的应用与研究。
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引用本文:

刘 成,王丹丽,李笑梅. 用混合像元线性模型提取中等植被覆盖区的粘土蚀变信息[J]. 遥感技术与应用, 2003, 18(2): 95-98.

LIU Cheng, WANG Dan-li, LI Xiao-mei. Extracting Clay Alteration Information of Medium Vegetation Covered Areas Based on Linear Model of Spectral Mixture Analysis. Remote Sensing Technology and Application, 2003, 18(2): 95-98.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2003.2.95        http://www.rsta.ac.cn/CN/Y2003/V18/I2/95

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