Peak detection algorithm of Raman spectra based on multi-scale local signal-to-noise ratio

	Peak detection algorithm of Raman spectra based on multi-scale local signal-to-noise ratio
	Jiang C.; Sun Q.; Liu Y.; Liang J.; Liu B.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:6
摘要	Raman spectral peak recognition is one of the key technologies in qualitative analysis of Raman spectra. Due to the defects of low degree of automation and low recognition accuracy of the existing Raman spectral recognition methods, a new Raman peak recognition algorithm based on multi-scale local signal-to-noise ratio (MLSNR) is proposed. The algorithm gets the multi-scale second order difference coefficient of spectrum through multi-scale second order difference operation, then divides the multi-scale second order difference coefficient by the estimated noise standard deviation to obtain the MLSNR matrix of spectrum, and identifies Raman peaks by searching the ridges caused by local maxima in MLSNR matrix. The algorithm uses an automatic threshold estimation method to avoid the interference of local maximum caused by noise, and can recognize Raman peaks automatically without any parameter to be specified by human. The simulation result shows that no matter to singular peak or congested peaks, when the signal-to-noise ratio of Raman peak is greater than or equal to 6, the recognition accuracy of MLSNR algorithm is 100%, even to the singular peak at the detection limit, the recognition accuracy is more than 95%. MLSNR algorithm is a practical Raman spectral peak identification method.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44257
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Jiang C.,Sun Q.,Liu Y.,et al. Peak detection algorithm of Raman spectra based on multi-scale local signal-to-noise ratio[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(6).
APA	Jiang C.,Sun Q.,Liu Y.,Liang J.,&Liu B..(2014).Peak detection algorithm of Raman spectra based on multi-scale local signal-to-noise ratio.Guangxue Xuebao/Acta Optica Sinica,34(6).
MLA	Jiang C.,et al."Peak detection algorithm of Raman spectra based on multi-scale local signal-to-noise ratio".Guangxue Xuebao/Acta Optica Sinica 34.6(2014).

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