globalchange  > 气候变化事实与影响
DOI: 10.1016/j.jag.2016.10.005
Scopus记录号: 2-s2.0-85028507049
论文题名:
Using spectrum differentiation and combination for target detection of minerals
作者: Dehnavi S; , Maghsoudi Y; , Valadanzoej M
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 55
起始页码: 9
结束页码: 20
语种: 英语
英文关键词: Derivative spectrum ; Ensemble classifier ; Hyperspectral imaging ; Mineral mapping ; Target detection
英文摘要: Among the techniques that have been developed in spectroscopy, derivative analysis is particularly promising for use with remote sensing data. In the first step of this research we apply the derivative spectrum in a real hyperspectral image and introduce a new target detection approach called “DCEM”. For this purpose, 1st to 5th orders of derivative spectrum were applied to the DCEM. The outcome of this research has shown that the application of derivative spectrum in target detection is perfectly advisable in a specific derivative order for each target. This order can be introduced as an optimized order or the Best DCEM. The spectrum differentiation eliminates low frequency components of the spectrum. Despite the little information included in those low frequency components of a signal or spectrum, their complete elimination cause an information loss problem. Hence, in the second step of this research an ensemble classifier approach was employed for the combined use of both spectra and the best derivative order. This simultaneous use of the derivative and zero order spectra is introduced as “ECEM”. Experiments were conducted via a HyMap hyperspectral airborne image in eastern Iran. The detection results show that both proposed methods significantly outperform CEM in ROC and AUC values. The best performance upgrade in DCEM detection was about 24% for Kaolinite target and about 28% for Alunite target in ECEM. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79933
Appears in Collections:气候变化事实与影响

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作者单位: Geomatics Engineering Faculty, K.N. Toosi University of Technology, Tehran, Iran

Recommended Citation:
Dehnavi S,, Maghsoudi Y,, Valadanzoej M. Using spectrum differentiation and combination for target detection of minerals[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,55
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