LIBS spectra automatic baseline correction method based on iterative morphometric weighted penalized least squares

Yongkai Sun; Xiaojian Hao; Long Ren

doi:10.1117/12.2505998

15 November 2018 LIBS spectra automatic baseline correction method based on iterative morphometric weighted penalized least squares

Yongkai Sun, Xiaojian Hao, Long Ren

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Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109643W (2018) https://doi.org/10.1117/12.2505998
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

Laser induced breakdown spectroscopy (LIBS) is an analytical technique that has received increasing attention due to many applications. A continuous background will cause baseline drift, which significantly affects spectral analysis. In this paper, an automated baseline correction method based on iterative morphological operations and weighted penalized least squares method is used for LIBS spectral baseline correction. This method can correct the estimated baseline. Experiments on simulated spectra and actual laser-induced breakdown of stainless steel sample LIBS data show that this method is accurate and flexible when used for LIBS spectral baseline correction.

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Yongkai Sun, Xiaojian Hao, and Long Ren "LIBS spectra automatic baseline correction method based on iterative morphometric weighted penalized least squares", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109643W (15 November 2018); https://doi.org/10.1117/12.2505998

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