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On automatic absorption detection for Imaging spectroscopy: A comparative study
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DOI：10.1109/TGRS.2007.903402.png)
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摘要
En 中文
In this paper, we aim at presenting a survey on automatic absorption recovery methods for imaging spectroscopy. We commence by viewing the algorithms in the literature from a technical perspective and presenting an overview of the derivative analysis, fingerprint, and maximum modulus wavelet transform techniques. In addition to these methods, we also present a novel absorption recovery approach based upon unimodal regression and continuum removal. With this technical review of the methods under study, we perform a complexity analysis and examine the implementation issues pertaining to each of the alternatives. We show how detected absorption bands can be used for purposes of material identification. We conclude this paper by providing a performance study and providing identification results on hyperspectral imagery. To this end, we make use of a number of distance measures to evaluate the quality of the recovered absorptions, as compared to continuum-removed spectra.
Keyword:
absorption features
fingerprint
hyperspectral image processing
maximum modulus wavelet transform (MMWT)
unimodal segmentation
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IF:
8.6
论文数:
2.1W
被引数:
10.7W
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