A comparative study and analysis between vertex component analysis and orthogonal subspace projection for endmember extraction

Chao Cheng Wu, Weimin Liu, Hsuan Ren, Chein I. Chang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

7 引文 斯高帕斯(Scopus)

摘要

Endmember extraction has received considerable interest in recent years. Of particular interest is the Pixel Purity Index (PPI) because of its publicity and availability in ENVI software. There are also many variants of the PPI have been developed. Among them is an interesting endmember extraction algorithm (EEA), called vertex component analysis (VCA) developed by Dias and Nascimento who extend the PPI to a simplex-based EEA while using orthogonal subspace projection (OSP) as a projection criterion rather than simplex volume used by another well-known EEA, N-finder algorithm (N-FINDR) developed by Winter. Interestingly, this paper will show that the VCA is essentially the same algorithm, referred to as Automatic Target Generation Process (ATGP) recently developed for automatic target detection and classification by Ren and Chang except the use of the initial condition to initialize the algorithm. In order to substantiate our findings, experiments using synthetic and real images are conducted for a comparative study and analysis.

原文???core.languages.en_GB???
主出版物標題Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII
DOIs
出版狀態已出版 - 2007
事件Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII - Orlando, FL, United States
持續時間: 9 4月 200712 9月 2007

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
6565
ISSN(列印)0277-786X

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???event.eventtypes.event.conference???Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII
國家/地區United States
城市Orlando, FL
期間9/04/0712/09/07

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