Affine invariant scale-space

@article{Sapiro2005AffineIS,
  title={Affine invariant scale-space},
  author={Guillermo Sapiro and Allen R. Tannenbaum},
  journal={International Journal of Computer Vision},
  year={2005},
  volume={11},
  pages={25-44}
}
A newaffine invariant scale-space for planar curves is presented in this work. The scale-space is obtained from the solution of a novel nonlinear curve evolution equation which admits affine invariant solutions. This flow was proved to be the affine analogue of the well knownEuclidean shortening flow. The evolution also satisfies properties such ascausality, which makes it useful in defining a scale-space. Using an efficient numerical algorithm for curve evolution, this continuous affine flow… 

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