HyperPCA: a Powerful Tool to Extract Elemental Maps from Noisy Data Obtained in LIBS Mapping of Materials

  title={HyperPCA: a Powerful Tool to Extract Elemental Maps from Noisy Data Obtained in LIBS Mapping of Materials},
  author={Riccardo Finotello and Mohamed Tamaazousti and J. B. Sirven},
Field theoretical approach for signal detection in nearly continuous positive spectra III: Universal features
The Z2-symmetry of the classical action exploiting universality arguments is justified and the superiority of definitions based on complete graphs of large size for data analysis is stressed, to tackle the open issue of a good definition of the covariance matrix for tensorial like data.


Exploration of megapixel hyperspectral LIBS images using principal component analysis
Laser-Induced Breakdown Spectroscopy (LIBS) has achieved promising performance as an elemental imaging technology, and considerable progress has been achieved in the development of LIBS over the last
On the utilization of principal component analysis in laser-induced breakdown spectroscopy data analysis, a review
Addressing the sparsity of laser-induced breakdown spectroscopy data with randomized sparse principal component analysis
This work shows that SPCA combined with genetic algorithms offers marginal improvements in clustering and quantification using multivariate calibration and significantly improves the interpretability of loading spectra, and indirectly demonstrates that the analysis of LIBS data can greatly benefit from the tools developed by randomized linear algebra.
Laser induced breakdown spectroscopy for quantitative analysis based on low-rank matrix approximations
Both of the performances of the Partial Least Squares (PLS) and Support Vector Machine (SVM) regression models are improved by using the low-rank matrix approximation scheme, which proves the effectiveness of the proposed method.
Emergences of New Technology for Ultrafast Automated Mineral Phase Identification and Quantitative Analysis Using the CORIOSITY Laser-Induced Breakdown Spectroscopy (LIBS) System
Geochemical and mineralogical characterization studies play an important role in the definition of mineral deposits. Each mineral system has a unique set of minerals with different chemical makeup
Calibration Strategies Applied to Laser-Induced Breakdown Spectroscopy: A Critical Review of Advances and Challenges
Over the years, laser-induced breakdown spectroscopy (LIBS) has been reported in the literature as an alternative to traditional methods of analysis, becoming well established among spectroanalytical
Micro-laser-induced breakdown spectroscopy technique: a powerful method for performing quantitative surface mapping on conductive and nonconductive samples.
A micro-LIBS device devoted to analysis of the distribution of elements on surfaces is described, which offers rapid access with a 3-microm spatial resolution to the microchemical structures of both conductive and nonconductive samples.