LINEAR MIXING AND THE ESTIMATION OF GROUND COVER PROPORTIONS

被引:750
作者
SETTLE, JJ
DRAKE, NA
机构
[1] NERC Unit for Thematic Information Systems, Department of Geography, University of Reading, Whiteknights, Reading
[2] Department of Geography, University of Reading, Whiteknights, Reading
[3] Department of Geography, King’s College London, Strand
关键词
D O I
10.1080/01431169308904402
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
In this paper we consider how we may determine the relative proportions of ground cover components in a mixed pixel. We assume the usual linear model for signal mixing and examine a number of methods, closely related, for estimating the proportions. We also show how the precision of our estimates can be defined. We introduce a new estimator which is based on regularisation principles and which produces a smoother set of images than other methods, and gives more accurate estimates. The methods are compared on a simulated data set.
引用
收藏
页码:1159 / 1177
页数:19
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