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IEICE TRANSACTIONS on Information

Mixed lp/l1 Norm Minimization Approach to Intra-Frame Super-Resolution

Kazuma SHIMADA, Katsumi KONISHI, Kazunori URUMA, Tomohiro TAKAHASHI, Toshihiro FURUKAWA

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Summary :

This paper deals with the problem of reconstructing a high-resolution digital image from a single low-resolution digital image and proposes a new intra-frame super-resolution algorithm based on the mixed lp/l1 norm minimization. Introducing some assumptions, this paper formulates the super-resolution problem as a mixed l0/l1 norm minimization and relaxes the l0 norm term to the lp norm to avoid ill-posedness. A heuristic iterative algorithm is proposed based on the iterative reweighted least squares (IRLS). Numerical examples show that the proposed algorithm achieves super-resolution efficiently.

Publication
IEICE TRANSACTIONS on Information Vol.E97-D No.10 pp.2814-2817
Publication Date
2014/10/01
Publicized
2014/07/22
Online ISSN
1745-1361
DOI
10.1587/transinf.2014EDL8086
Type of Manuscript
LETTER
Category
Image Processing and Video Processing

Authors

Kazuma SHIMADA
  Tokyo University of Science
Katsumi KONISHI
  Kogakuin University
Kazunori URUMA
  Tokyo University of Science
Tomohiro TAKAHASHI
  Tokyo University of Science
Toshihiro FURUKAWA
  Tokyo University of Science

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