Fast normal vector compression with bounded error

  title={Fast normal vector compression with bounded error},
  author={Eric J. Griffith and Michal Koutek and Frits H. Post},
  booktitle={Symposium on Geometry Processing},
We present two methods for lossy compression of normal vectors through quantization using “base” polyhedra. The first revisits subdivision-based quantization. The second uses fixed-precision barycentric coordinates. For both, we provide fast (de)compression algorithms and a rigorous upper bound on compression error. We discuss the effects of base polyhedra on the error bound and suggest polyhedra derived from spherical coverings. Finally, we present compression and decompression results, and we… CONTINUE READING
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