Projected tetrahedra revisited: a barycentric formulation applied to digital radiograph reconstruction using higher-order attenuation functions

@article{Sadowsky2006ProjectedTR,
  title={Projected tetrahedra revisited: a barycentric formulation applied to digital radiograph reconstruction using higher-order attenuation functions},
  author={Ofri Sadowsky and Jonathan D. Cohen and Russell H. Taylor},
  journal={IEEE Transactions on Visualization and Computer Graphics},
  year={2006},
  volume={12},
  pages={461-473}
}
This paper presents a novel method for volume rendering of unstructured grids. Previously, we introduced an algorithm for perspective-correct interpolation of barycentric coordinates and computing polynomial attenuation integrals for a projected tetrahedron using graphics hardware. In this paper, we enhance the algorithm by providing a simple and efficient method to compute the projected shape (silhouette) and tessellation of a tetrahedron, in perspective and orthographic projection models. Our… CONTINUE READING

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