Now showing items 1-6 of 6

    • Efficient algorithms for boundary extraction of 2D and 3D orthogonal pseudomanifolds 

      Vigo Anglada, Marc; Pla García, Núria; Ayala Vallespí, M. Dolors; Martínez Bayona, Jonás (2012)
      Article
      Restricted access - publisher's policy
      In this paper we present algorithms to extract the boundary representation of orthogonal polygons and polyhedra, either manifold or pseudomanifold. The algorithms we develop reconstruct not only the polygons of the boundaries ...
    • Locally-adaptive texture compression 

      Andújar Gran, Carlos Antonio; Martínez Bayona, Jonás (2009)
      Conference report
      Restricted access - publisher's policy
      Current schemes for texture compression fail to exploit spatial coherence in an adaptive manner due to the strict efficiency constraints imposed by GPU-based, fragment-level decompression. In this paper we present a texture ...
    • Skeletal representations of orthogonal shapes 

      Martínez Bayona, Jonás; Pla García, Núria; Vigo Anglada, Marc (2012)
      External research report
      Open Access
      In this paper we present two skeletal representations applied to orthogonal shapes of R^n : the cube axis and a family of skeletal representations provided by the scale cube axis. Orthogonal shapes are a subset of polytopes, ...
    • Skeletal representations of orthogonal shapes 

      Martínez Bayona, Jonás; Pla García, Núria; Vigo Anglada, Marc (2013-07-01)
      Article
      Restricted access - publisher's policy
      Orthogonal shapes are polygons orpolyhedra enclosed byaxis-aligned edges orfaces, respectively. Inthis paper wepresent two skeletal representatio nsoforthogonal shapes: the cube skeleton and a family ofskeletal represe ...
    • Skeleton computation of an image using a geometric approach 

      Martínez Bayona, Jonás; Vigo Anglada, Marc; Pla García, Núria; Ayala Vallespí, M. Dolors (2010)
      Conference lecture
      Restricted access - publisher's policy
      In this work we develop two algorithms to compute the skeleton of a binary 2D image. Both algorithms follow a geometric approach and work directly with the boundary of the image which is an orthogonal polygon (OP). One ...
    • Skeleton computation of orthogonal polyhedra 

      Martínez Bayona, Jonás; Vigo Anglada, Marc; Pla García, Núria (North Holland, 2011-08)
      Article
      Restricted access - publisher's policy
      Skeletons are powerful geometric abstractions that provide useful representations for a number of geometric operations. The straight skeleton has a lower combinatorial complexity compared with the medial axis. Moreover, while ...