On constrained energy minimization and the partial unmixing of multispectral images

被引：32
|
作者：
Settle, J [1 ]
机构：
[1] Univ Reading, Environm Syst Sci Ctr, Reading RG6 6AL, Berks, England
来源：
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2002年 / 40卷 / 03期
关键词：
constrained energy minimization (CEM); hyperspectral data; matched filters; unmixing;
D O I：
10.1109/TGRS.2002.1000332
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Constrained energy minimization, a target detection algorithm, sometimes appears to correlate well with fractional abundance. This letter shows that exact correlation with true relative abundance arises when the following conditions hold: underlying mixing is linear, endmembers are well separated with respect to random noise, and global abundances are constrained in a particular way.
引用
收藏
页码：718 / 721
页数：4
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