A Sobolev-type metric for polar active contours

  title={A Sobolev-type metric for polar active contours},
  author={Maximilian Baust and Anthony J. Yezzi and G{\"o}zde B. {\"U}nal and Nassir Navab},
  journal={CVPR 2011},
Polar object representations have proven to be a powerful shape model for many medical as well as other computer vision applications, such as interactive image segmentation or tracking. Inspired by recent work on Sobolev active contours we derive a Sobolev-type function space for polar curves. This so-called polar space is endowed with a metric that allows us to favor origin translations and scale changes over smooth deformations of the curve. Moreover, the resulting curve flow inherits the… CONTINUE READING
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