Scale-Space and Edge Detection Using Anisotropic Diffusion

@article{Perona1990ScaleSpaceAE,
  title={Scale-Space and Edge Detection Using Anisotropic Diffusion},
  author={Pietro Perona and Jitendra Malik},
  journal={IEEE Trans. Pattern Anal. Mach. Intell.},
  year={1990},
  volume={12},
  pages={629-639}
}
The scale-space technique introduced by Witkin involves generating coarser resolution images by convolving the original image with a Gaussian kernel. This approach has a major drawback: it is difficult to obtain accurately the locations of the "semantically meaningful" edges at coarse scales. In this paper we suggest a new definition of scale-space, and introduce a class of algorithms that realize it using a diffusion process. The diffusion coefficient is chosen to vary spatially in such a way… CONTINUE READING

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