Blar i Brage NMBU på forfatter "Solheim, Johanne Heitmann"
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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 (Peer reviewed; Journal article, 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 ... -
An optimized algorithm for separating scattering and chemical absorption in biomedical infrared spectroscopy and imaging
Solheim, Johanne Heitmann (Master thesis, 2017)Infrarødspektroskopi av biologiske prøver har blitt utviklet til et lovende verktøy for ikke-destruktiv biokjemisk analyse gjennom de siste tiårene. Infrarøde absorbansspektre representerer molekylære fingeravtrykk. ... -
Deep convolutional neural network recovers pure absorbance spectra from highly scatter‐distorted spectra of cells
Magnussen, Eirik Almklov; Solheim, Johanne Heitmann; Blazhko, Uladzislau; Tafintseva, Valeria; Tøndel, Kristin; Liland, Kristian Hovde; Dzurendova, Simona; Shapaval, Volha; Sandt, Christophe; Borondics, Ferenc; Kohler, Achim (Peer reviewed; Journal article, 2020) -
Modelling scattering and absorption in the vibrational spectroscopy of cells and tissues
Solheim, Johanne Heitmann (PhD Thesis;2022:53, Doctoral thesis, 2022)Infrared spectroscopy has in the past decades grown to become one of the most widely used analytical techniques for biochemical characterization of biological materials. Since the technique is non-destructive, it allows ... -
Origin of micro-scale heterogeneity in polymerisation of photo-activated resin composites
Sirovica, Slobodan; Solheim, Johanne Heitmann; Hirschmugl, Carol J.; Kohler, Achim (Peer reviewed; Journal article, 2020) -
Preprocessing Strategies for Sparse Infrared Spectroscopy: A Case Study on Cartilage Diagnostics
Tafintseva, Valeria; Lintvedt, Tiril Aurora; Solheim, Johanne Heitmann; Zimmermann, Boris; Rehman, Hafeez Ur; Virtanen, Vesa; Shaikh, Rubina; Nippolainen, Ervin; Afara, Isaac; Saarakkala, Simo; Rieppo, Lassi; Krebs, Patrick; Fomina, Polina; Mizaikoff, Boris; Kohler, Achim (Peer reviewed; Journal article, 2022)The aim of the study was to optimize preprocessing of sparse infrared spectral data. The sparse data were obtained by reducing broadband Fourier transform infrared attenuated total reflectance spectra of bovine and human ...