Real-Time Simplex Growing Algorithms for Hyperspectral Endmember Extraction

被引：54

作者：

Chang, Chein-, I ^{[1
,2
]}

Wu, Chao-Cheng ^{[3
]}

Lo, Chien-Shun ^{[4
]}

Chang, Mann-Li ^{[5
,6
,7
]}

机构：

[1] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Remote Sensing Signal & Image Proc Lab, Baltimore, MD 21250 USA

[2] Natl Chung Hsing Univ, Dept Elect Engn, Taichung 40254, Taiwan

[3] Innovim, Greenbelt, MD 20770 USA

[4] Natl Formosa Univ, Dept Multimedia Design, Yunlin 632, Taiwan

[5] Kang Ning Jr Coll Med Care & Management, Dept Informat Management, Taipei 114, Taiwan

[6] Natl Open Univ, Dept Informat & Management, Taipei 247, Taiwan

[7] Bur Natl Hlth Insurance, Informat Syst Div, Taipei 10634, Taiwan

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2010年 / 48卷 / 04期

关键词：

Endmember extraction algorithm (EEA); p-Pass automatic target generation process (ATGP)-simplex growing algorithm (SGA); p-Pass Maximin-SGA; p-Pass Minimax-SGA; p-Pass real-time (RT) SGA (RT SGA); p-Pass unsupervised fully constrained least squares (UFCLS)-SGA; TARGET RECOGNITION; COMPONENT ANALYSIS; QUANTIFICATION; INFORMATION; SKEWERS; BLOCKS;

D O I：

10.1109/TGRS.2009.2034979

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：

The simplex growing algorithm (SGA) was recently developed as an alternative to the N-finder algorithm (N-FINDR) and shown to be a promising endmember extraction technique. This paper further extends the SGA to a versatile real-time (RT) processing algorithm, referred to as RT SGA, which can effectively address the following four major issues arising in the practical implementation for N-FINDR: 1) use of random initial endmembers which causes inconsistent final results; 2) high computational complexity which results from an exhaustive search for finding all endmembers simultaneously; 3) requirement of dimensionality reduction because of large data volumes; and 4) lack of RT capability. In addition to the aforementioned advantages, the proposed RT SGA can also be implemented by various criteria in endmember extraction other than the maximum simplex volume.

引用

页码：1834 / 1850

页数：17

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