CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2007, Vol. 24 ›› Issue (2): 203-210.

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Weighted Essentially Non-oscillatory Schemes for Image Restoration

SHI Yuying1,2, CHANG Qianshun2   

  1. 1. Department of Mathematics and Physics, North China Electric Power University, Beijing 102206, China;
    2. Institute of Applied Mathematics, Academy of Mathematics and System Sciences, Graduate School of the Chinese Academy of Sciences, Belting 100080, China
  • Received:2005-09-05 Revised:2006-03-20 Online:2007-03-25 Published:2007-03-25

Abstract: Weighted essentially non-oscillatory schemes are described in detail for a total variation-based image restoration problem with Gaussian kernel at different boundary conditions.Numerical results with three methods (weighted essentially non-oscillatory schemes,wiener algorithm and a combination of them) are compared. Experimental results demonstrate effectiveness of the combination of weighted essentially non-oscillatory schemes and wiener algorithm.

Key words: image restoration, Dirichlet BCs, periodic BCs, reflecting BCs, weighted essentially non-oscillatory

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