CASIA OpenIR
Simultaneous spectrum fitting and baseline correction using sparse representation
Han QJ(韩权杰)1,2; Xie Q(谢琼)1,2; Peng SL(彭思龙)1,2; Guo BK(郭宝奎)1,2
Source PublicationAnalyst
2017
Issue142Pages:2460-2468
Abstract

Sparse representation has been applied in many domains, such as signal processing, image processing and machine learning. In this paper, a redundant dictionary with each column composed of a Voigt-like
lineshape is constructed to represent the pure spectrum of the sample. With the prior knowledge that the baseline is smooth and sparse representation coefficient for a pure spectrum, a method simultaneously
fitting the pure spectrum and baseline is proposed. Since the pure spectrum is nonnegative, the representation coefficients are also made to be nonnegative. Then through alternating optimization, a surrogate
function based algorithm is used to obtain the sparse coefficients. Finally, we adopt one simulated data set and two real data sets to evaluate our method. The results of quantitative analysis show that our
method successfully estimates the baseline and pure spectrum and is superior compared to other baseline correction and preprocessing methods.

KeywordSparse Representation Spectrum Fitting Baseline Correction
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[61571438] ; National Natural Science Foundation of China[61601104]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/23500
Collection中国科学院自动化研究所
Corresponding AuthorXie Q(谢琼)
Affiliation1.中国科学院自动化研究所
2.中国科学院大学
First Author AffilicationInstitute of Automation, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Automation, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Han QJ,Xie Q,Peng SL,et al. Simultaneous spectrum fitting and baseline correction using sparse representation[J]. Analyst,2017(142):2460-2468.
APA Han QJ,Xie Q,Peng SL,&Guo BK.(2017).Simultaneous spectrum fitting and baseline correction using sparse representation.Analyst(142),2460-2468.
MLA Han QJ,et al."Simultaneous spectrum fitting and baseline correction using sparse representation".Analyst .142(2017):2460-2468.
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