Image and video upscaling from local self-examples

@article{Freedman2011ImageAV,
  title={Image and video upscaling from local self-examples},
  author={Gilad Freedman and Raanan Fattal},
  journal={ACM Trans. Graph.},
  year={2011},
  volume={30},
  pages={12:1-12:11}
}
We propose a new high-quality and efficient single-image upscaling technique that extends existing example-based super-resolution frameworks. In our approach we do not rely on an external example database or use the whole input image as a source for example patches. Instead, we follow a local self-similarity assumption on natural images and extract patches from extremely localized regions in the input image. This allows us to reduce considerably the nearest-patch search time without… CONTINUE READING
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