@InProceedings{theisel04b,
  author    = {H.~Theisel and T.~Weinkauf and H.-C.~Hege and H.-P.~Seidel},
  title     = {Grid-Independent Detection of Closed Stream Lines in {2D} Vector Fields},
  booktitle = {Proc. Vision, Modeling and Visualization},
  year      = {2004},
  pages     = {421--428},
  address   = {Stanford, U.S.A.},
  month     = {November},
  abstract  = {We present a new approach to detecting isolated closed stream lines
              in 2D vector fields. This approach is based on the idea of transforming
              the 2D vector field into an appropriate 3D vector field such that
              detecting closed stream lines in 2D is equivalent to intersecting
              certain stream surfaces in 3D. Contrary to pre-existing methods,
              our approach does not rely on any underlying grid structure of the
              vector field. We demonstrate the applicability and stability by applying
              it to a test data set.},
  day       = {16 - 18},
  keywords  = {flow visualization, vector field topology, closed stream lines},
  url = {http://tinoweinkauf.net/publications/abstheisel04b.html},
}