Ara es mostren els items 1-11 de 11

  • Data structures and algorithms for navigation in highly polygon-populated scenes 

    Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (1998-10)
    Report de recerca
    Accés obert
    We present the visibility octree, a new data structure to accelerate 3D navigation through very complex scenes. Our approach employs a conservative visibility technique to compute an approximation to the visibility space ...
  • Geometric transformations in octrees using shears 

    Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Vinacua Pla, Álvaro (1997-12)
    Report de recerca
    Accés obert
    Existent algorithms to perform geometric transformations on octrees can be classified in two families: inverse transformation and address computation ones. Those in the inverse transformation family essentially resample ...
  • Hoops: 3D curves as conservative occluders for cell visibility 

    Brunet Crosa, Pere; Navazo Álvaro, Isabel; Rossignac, Jarek; Saona Vázquez, Carlos Luis (North Holland, 2001-08)
    Article
    Accés restringit per política de l'editorial
    Most visibility culling algorithms require convexity of occluders. Occluder synthesis algorithms attempt to construct large convex occluders inside bulky non-convex sets. Occluder fusion algorithms generate convex occluders ...
  • Integrating occlusion culling and levels of detail through hardly-visible sets 

    Andújar Gran, Carlos Antonio; Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (North Holland, 2000-12)
    Article
    Accés restringit per política de l'editorial
    Occlusion culling and level-of-detail rendering have become two powerful tools for accelerating the handling of very large models in real-time visualization applications. We present a framework that combines both techniques ...
  • Integrating occlusion culling and levels of detail through hardly-visible sets 

    Andújar Gran, Carlos Antonio; Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (2000-01)
    Report de recerca
    Accés obert
    Occlusion culling and level-of-detail rendering have become two powerful tools for accelerating the handling of very large models in real-time visualization applications. We present a framework to combine both techniques ...
  • LOD visibility culling and occluder synthesis 

    Andújar Gran, Carlos Antonio; Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel (2000-01)
    Report de recerca
    Accés obert
    Level-of-detail occlusion culling is a novel approach to the management of occluders that can be easily integrated into most current visibility culling algorithms. The main contribution of this paper is an algorithm ...
  • LOD visibility culling and occluder synthesis 

    Andújar Gran, Carlos Antonio; Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel (Elsevier, 2000-11)
    Article
    Accés obert
    Level-of-detail occlusion culling is a novel approach to the management of occluders that can be easily integrated into most current visibility culling algorithms. The main contribution of this paper is an algorithm that ...
  • Navigation in highly polygon-populated ship environments using the visibility octree 

    Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (2000-01)
    Report de recerca
    Accés obert
    This work is focused on the interactive navigation through highly polygon-populated ship environments. A conservative visibility algorithm is presented that hierarchically computes visibility for different observer ...
  • Popping hoops for view-dependent occluder synthesis 

    Saona Vázquez, Carlos Luis; Rossignac, J.; Navazo Álvaro, Isabel; Brunet Crosa, Pere (2000-11)
    Report de recerca
    Accés obert
    Most visibility culling algorithms require convexity of occluders. And those algorithms that do not are much more efficient when convexity is met. Occluder synthesis algorithms lessen this limitation by extracting ...
  • The Visibility octree. A data structure for 3D navigation 

    Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (1999-06)
    Report de recerca
    Accés obert
    This paper describes the Visibility Octree, a data structure to accelerate 3D navigation through very complex scenes. A conservative visibility algorithm that computes and hierarchically stores the structure at a preprocessing ...
  • The visibility octree: a data structure for 3D navigation 

    Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (1999-05)
    Article
    Accés restringit per política de l'editorial
    This paper describes the visibility octree, a data structure to accelerate 3D navigation through very complex scenes. A conservative visibility algorithm that computes and hierarchically stores the structure at a preprocessing ...