Direct Sparse Deblurring

Y. Lou,A. Bertozzi,Stefano Soatto

Published 2010 in Journal of Mathematical Imaging and Vision

ABSTRACT

We propose a deblurring algorithm that explicitly takes into account the sparse characteristics of natural images and does not entail solving a numerically ill-conditioned backward-diffusion. The key observation is that the sparse coefficients that encode a given image with respect to an over-complete basis are the same that encode a blurred version of the image with respect to a modified basis. Following an “analysis-by-synthesis” approach, an explicit generative model is used to compute a sparse representation of the blurred image, and its coefficients are used to combine elements of the original basis to yield a restored image.

PUBLICATION RECORD

  • Publication year

    2010

  • Venue

    Journal of Mathematical Imaging and Vision

  • Publication date

    Unknown publication date

  • Fields of study

    Mathematics, Computer Science

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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