A Log-Euclidean Polyaffine Framework for Locally Rigid or Affine Registration

@inproceedings{Arsigny2006ALP,
  title={A Log-Euclidean Polyaffine Framework for Locally Rigid or Affine Registration},
  author={Vincent Arsigny and Olivier Commowick and Xavier Pennec and Nicholas Ayache},
  booktitle={WBIR},
  year={2006}
}
In this article, we focus on the parameterization of nonrigid geometrical deformations with a small number of flexible degrees of freedom . In previous work, we proposed a general framework called polyaffine to parameterize deformations with a small number of rigid or affine components, while guaranteeing the invertibility of global deformations. However, this framework lacks some important properties: the inverse of a polyaffine transformation is not polyaffine in general, and the polyaffine… CONTINUE READING
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A fast and Log-Euclidean polyaffine framework for locally affine registration

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