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Simultaneous spectrum fitting and baseline correction using sparse representation

文献类型：期刊论文

作者Han, Quanjie1,2; Xie, Qiong1,2; Peng, Silong1,2; Guo, Baokui1,2
刊名ANALYST
出版日期2017-07-07
卷号142期号:13页码:2460-2468
关键词Sparse Representation
DOI10.1039/c6an02341j
文献子类Article
英文摘要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.
WOS关键词LEAST-SQUARES ; REFLECTANCE SPECTRA ; ELIMINATION ; CALIBRATION ; RESOLUTION ; ALGORITHM
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000404274500020
资助机构National Natural Science Foundation of China(61571438 ; Beijing Natural Science Foundation(1152001) ; 61601104)
源URL[http://ir.ia.ac.cn/handle/173211/15229]  
专题自动化研究所_智能制造技术与系统研究中心_多维数据分析团队
作者单位1.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Han, Quanjie,Xie, Qiong,Peng, Silong,et al. Simultaneous spectrum fitting and baseline correction using sparse representation[J]. ANALYST,2017,142(13):2460-2468.
APA Han, Quanjie,Xie, Qiong,Peng, Silong,&Guo, Baokui.(2017).Simultaneous spectrum fitting and baseline correction using sparse representation.ANALYST,142(13),2460-2468.
MLA Han, Quanjie,et al."Simultaneous spectrum fitting and baseline correction using sparse representation".ANALYST 142.13(2017):2460-2468.

入库方式： OAI收割

来源：自动化研究所

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