IS = { zkontrolovano 18 Jan 2008 },
  UPDATE  = { 2008-01-18 },
  author =     {Kukelova, Zuzana and Durikovic, Roman },
  title =      {Sketch-Based Modeling System With Convolution and 
                Variational Implicit Surfaces},
  year =       {2007},
  month =      {October},
  pages =      {181-188},
  journal =    {IADIS International Journal on Computer 
                Science and Information System},
  publisher =  {IADIS Press},
  address =    {Lisboa, Portugal},
  issn =       {1646-3692},
  volume =     {II},
  number =     {2},
  annote = {In this work we focus on function representation suitable
    for creating 3D freeform shapes with sketched silhouette
    curves. We aim at comparison of two approaches for sketch-based
    modeling, namely the skeleton-based convolution surfaces and
    variational implicit surfaces. Both methods are extended to handle
    smooth set theoretic operations between components defined by
    sketching silhouette curves on different projection planes. Our
    approach includes additional extensions to sketch-based systems
    like automatic skeleton generation that can be directly used for
    object animation, carving operation, creating surfaces with
    handles and surface texturing.},
  keywords =   {sketch based modeling, convolution surfaces, 
    variational implicit surfaces, free-form modeling },
  project =    {none},