• Adaptive Global Visibility Sampling 

      Autor: Bittner, Jiří; Mattausch, Oliver; Wonka, Peter; Havran, Vlastimil; Wimmer, Michael
      (Association for Computing Machinery (ACM), 2009)
      In this paper we propose a global visibility algorithm which computes from-region visibility for all view cells simultaneously in a progressive manner. We cast rays to sample visibility interactions and use the information ...
    • Fast Insertion-Based Optimization of Bounding Volume Hierarchies 

      Autor: Bittner, Jiří; Hapala, Michal; Havran, Vlastimil
      (Eurographics Association, Wiley-Blackwell, 2013-02)
      We present an algorithm for fast optimization of bounding volume hierarchies (BVH) for efficient ray tracing. We perform selective updates of the hierarchy driven by the cost model derived from the surface area heuristic. ...
    • Visibility-driven Mesh Analysis and Visualization through Graph Cuts 

      Autor: Zhou, Kaichi; Zhang, Eugene; Bittner, Jiří; Wonka, Peter
      (IEEE Computer Society, 2008-11)
      In this paper we present an algorithm that operates on a triangular mesh and classifies each face of a triangle as either inside or outside. We present three example applications of this core algorithm: normal orientation, ...
    • VR and HCI Labs at the Czech Technical University in Prague 

      Autor: Berka, Roman; Bittner, Jiří; Slavík, Pavel
      (Brazilian Computer Society - SBC, 2011)
      This paper describes the mission, objectives, and research directions of the Department of Computer Graphics and Interaction of the Czech Technical University in Prague. It also gives a brief overview of the running research ...