Towards Sparse and Multiplexed Acquisition of Material BTFs

Bibtex

@INPROCEEDINGS{ddb-2017-sparse-multiplexed-acquisition,
     author = {den Brok, Dennis and Weinmann, Michael and Klein, Reinhard},
      title = {Towards Sparse and Multiplexed Acquisition of Material BTFs},
  booktitle = {Eurographics Workshop on Material Appearance Modeling},
       year = {2017},
   abstract = {We present preliminary results on our effort to combine sparse and illumination-multiplexed
               acquisition of bidirectional texture functions (BTFs) for material appearance. Both existing
               acquisition paradigms deal with a single specific problem: the desire to reduce either the number of
               images to be obtained while maintaining artifact-free renderings, or the shutter times required to
               capture the full dynamic range of a material’s appearance. These problems have so far been solved
               by means of data-driven models. We demonstrate that the way these models are derived prevents
               combined sparse and multiplexed acquisition, and introduce a novel model that circumvents this
               obstruction. As a result, we achieve acquisition times on the order of minutes in comparison to the
               few hours required with sparse acquisition or multiplexed illumination.}
}