• Comparison of Imaging Models for Spectral Unmixing in Oil Painting 

      Grillini, Federico; Thomas, Jean Baptiste; George, Sony (Peer reviewed; Journal article, 2021)
      The radiation captured in spectral imaging depends on both the complex light–matter interaction and the integration of the radiant light by the imaging system. In order to obtain material-specific information, it is important ...
    • Correlations in Joint Spectral and Polarization Imaging 

      Courtier, Guillaume; Lapray, Pierre-Jean; Thomas, Jean Baptiste; Farup, Ivar (Peer reviewed; Journal article, 2021)
      Recent imaging techniques enable the joint capture of spectral and polarization image data. In order to permit the design of computational imaging techniques and future processing of this information, it is interesting to ...
    • Investigating the Kokhanovsky snow reflectance model in closerange spectral imaging 

      Nguyen, Mathieu; Thomas, Jean Baptiste; Farup, Ivar (Chapter, 2021)
      The internal structure of the snow and its reflectance function play a major contribution in its appearance. We investigate the snow reflectance model introduced by Kokhanovsky and Zege in a close-range imaging scale. By ...
    • Joint demosaicing of colour and polarisation from filter arrays 

      Spote, Alexandra; Lapray, Pierre-Jean; Thomas, Jean Baptiste; Farup, Ivar (Chapter, 2021)
      This article considers the joint demosaicing of colour and polarisation image content captured with a Colour and Polarisation Filter Array imaging system. The Linear Minimum Mean Square Error algorithm is applied to this ...
    • Multispectral constancy for illuminant invariant representation of multispectral images 

      Khan, Haris Ahmad (Doctoral theses at NTNU;2018:290, Doctoral thesis, 2018)
    • On the appearance of objects and materials: Qualitative analysis of experimental observations 

      Gigilashvili, Davit; Thomas, Jean Baptiste; Pedersen, Marius; Hardeberg, Jon Yngve (Journal article; Peer reviewed, 2021)
      Perception of appearance of different materials and objects is a complex psychophysical phenomenon and its neurophysiological and behavioral mechanisms are far from being fully understood. The various appearance attributes ...
    • On the Nature of Perceptual Translucency 

      Gigilashvili, Davit; Thomas, Jean Baptiste; Hardeberg, Jon Yngve; Pedersen, Marius (Journal article, 2020)
      Translucency is an appearance attribute used to characterize materials with some degree of subsurface light transport. Although translucency as a radiative transfer inside the medium is relatively well understood, translucency ...
    • Reflectance estimation from snapshot multispectral images captured under unknown illumination 

      Kitanovski, Vlado; Thomas, Jean Baptiste; Hardeberg, Jon Yngve (Peer reviewed; Journal article, 2021)
      Multispectral images contain more spectral information of the scene objects compared to color images. The captured information of the scene reflectance is affected by several capture conditions, of which the scene illuminant ...
    • Translucency perception: A review 

      Gigilashvili, Davit; Thomas, Jean Baptiste; Hardeberg, Jon Yngve; Pedersen, Marius (Peer reviewed; Journal article, 2021)
      Translucency is an optical and a perceptual phenomenon that characterizes subsurface light transport through objects and materials. Translucency as an optical property of a material relates to the radiative transfer inside ...