@article{sap-tan-95-inva,
  author = {Guillermo Sapiro and Allen Tannenbaum},
  title = {Area and Length Preserving Geometric Invariant Scale-Spaces},
  journal = {IEEE Transactions on Pattern Analysis and Machine Intelligence},
  volume = {17},
  number = {1},
  pages = {67--72},
  year = 1995,
  comment = {Prop\~{o}e uma representa{\c{c}}{\~a}o de m{\'u}ltiplas escalas em curvas planares sem {\em encolhimento} da curva e preservando todas as propriedades importantes na representa{\c{c}}{\~a}o multi-escala. Usa eq. de fluxo de calor. - Explains how to compute a global scale factor that corrects for the shrinkage of a contour due ...},
  altkeys = {ref:sapiro}
}