Blar i Bergen Open Research Archive på forfatter "Muthreich, Florian"
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An automated approach for fringe frequency estimation and removal in infrared spectroscopy and hyperspectral imaging of biological samples
Solheim, Johanne Heitmann; Borondics, Ferenc; Zimmermann, Boris; Sandt, Christophe; Muthreich, Florian; Kohler, Achim (Journal article; Peer reviewed, 2021)In infrared spectroscopy of thin film samples, interference introduces distortions in spectra, commonly referred to as fringes. Fringes may alter absorbance peak ratios, which hampers the spectral analysis. We have previously ... -
Chemical variations in Quercus pollen as a tool for taxonomic identification: Implications for long-term ecological and biogeographical research
Muthreich, Florian; Zimmermann, Boris; Birks, Harry John Betteley; Vila-Vicosa, Carlos M; Seddon, Alistair (Journal article; Peer reviewed, 2020)Aim Fossil pollen is an important tool for understanding biogeographical patterns in the past, but the taxonomic resolution of the fossil‐pollen record may be limited to genus or even family level. Chemical analysis of ... -
Deep learning-enabled Inference of 3D molecular absorption distribution of biological cells from IR spectra
Magnussen, Eirik Almklov; Zimmermann, Boris; Blazhko, Uladzislau; Dzurendová, Simona; Dupuy--Galet, Benjamin Xavier; Byrtusova, Dana; Muthreich, Florian; Tafintseva, Valeria; Liland, Kristian Hovde; Tøndel, Kristin; Shapaval, Volha; Kohler, Achim (Journal article; Peer reviewed, 2022)Infrared spectroscopy delivers abundant information about the chemical composition, as well as the structural and optical properties of intact samples in a non-destructive manner. We present a deep convolutional neural ... -
Detection of ice core particles via deep neural networks
Maffezzoli, Niccolò; Cook, Eliza; van der Bilt, Willem Godert Maria; Støren, Eivind; Festi, Daniela; Muthreich, Florian; Seddon, Alistair William Robin; Burgay, François; Baccolo, Giovanni; Mygind, Amalie; Petersen, Troels; Spolaor, Andrea; Vascon, Alessio; Pelillo, Marcello; Ferretti, Patrizia; dos Reis, Rafael S.; Simões, Jefferson; Ronen, Yuval; Delmonte, Barbara; Viccaro, Marco; Steffensen, Jørgen Peder; Dahl-Jensen, Dorthe; Nisancioglu, Kerim Hestnes; Brabante, Carlo (Journal article; Peer reviewed, 2023)Insoluble particles in ice cores record signatures of past climate parameters like vegetation dynamics, volcanic activity, and aridity. For some of them, the analytical detection relies on intensive bench microscopy ... -
New methods in Palaeopalynology: Classification of pollen through pollen chemistry
Muthreich, Florian (Doctoral thesis, 2021-11-04)Pollen grains are one of the primary tools of palaeoecologists to reconstruct vegetation changes in the past. The description, counting and analysis of pollen grains (palynology) has contributed to our understanding of ...