Simultaneous spectrum fitting and baseline correction using sparse representation
Han, Quanjie1,2; Xie, Qiong1,2; Peng, Silong1,2; Guo, Baokui1,2
2017-07-07
发表期刊ANALYST
卷号142期号:13页码:2460-2468
文章类型Article
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.
关键词Sparse Representation
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6an02341j
关键词[WOS]LEAST-SQUARES ; REFLECTANCE SPECTRA ; ELIMINATION ; CALIBRATION ; RESOLUTION ; ALGORITHM
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(61571438 ; Beijing Natural Science Foundation(1152001) ; 61601104)
WOS研究方向Chemistry
WOS类目Chemistry, Analytical
WOS记录号WOS:000404274500020
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/15229
专题智能制造技术与系统研究中心_多维数据分析
作者单位1.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
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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.
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