Contour Stencils: Total Variation along Curves for Adaptive Image Interpolation

@article{Getreuer2011ContourST,
  title={Contour Stencils: Total Variation along Curves for Adaptive Image Interpolation},
  author={Pascal Getreuer},
  journal={SIAM J. Imaging Sci.},
  year={2011},
  volume={4},
  pages={954-979}
}
Image interpolation is the problem of increasing the resolution of a given image. An important aspect of interpolation is accurate estimation of edge orientations. This work introduces contour stencils, a new method for estimating the image contours based on total variation along curves. Contour stencils are able to distinguish lines of different orientations, curves, corners, and other geometric features with a computationally efficient formula. Contour stencils are applied in designing an… 
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