Simplex Volume Maximization (SiVM): A matrix factorization algorithm with non-negative constrains and low computing demands for the interpretation of full spectral X-ray fluorescence imaging data
2017; Elsevier BV; Volume: 132; Linguagem: Inglês
10.1016/j.microc.2017.02.001
ISSN1095-9149
AutoresMatthias Alfeld, Mirwaes Wahabzada, Christian Bauckhage, Kristian Kersting, Geert Van der Snickt, Petria Noble, Koen Janssens, Gerd Wellenreuther, Gerald Falkenberg,
Tópico(s)Spectroscopy and Chemometric Analyses
ResumoTechnological progress allows for an ever-faster acquisition of hyperspectral data, challenging the users to keep up with interpreting the recorded data. Matrix factorization, the representation of data sets by bases (or loads) and coefficient (or score) images is long used to support the interpretation of complex data sets. We propose in this publication Simplex Volume Maximization (SiVM) for the analysis of X-ray fluorescence (XRF) imaging data sets. SiVM selects archetypical data points that represents the data set and thus provides easily understandable bases, preserves the non-negative character of XRF data sets and has low demands concerning computing resources. We apply SiVM on an XRF data set of Hans Memling's Portrait of a man from the Lespinette family from the collection of the Mauritshuis (The Hague, NL) and discuss capabilities and shortcomings of SiVM.
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