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Author:

Li, Xiao-Guang (Li, Xiao-Guang.) | Shen, Lan-Sun (Shen, Lan-Sun.) | Lam, Kin-Man (Lam, Kin-Man.) | Wang, Su-Yu (Wang, Su-Yu.)

Indexed by:

EI Scopus PKU CSCD

Abstract:

An image magnification method with GVF-based anisotropic diffusion model is proposed. An image is magnified by bilinear interpolation at first. Then, an iterative restoration with a GVF based mean curvature flow diffusion and a Gaussian moving average LR constraint is applied to the magnified image. Since GVF is a rotational field, as an external force field to descript the edges of an image, the vector flow will become streamline near the jagged edges. Therefore, the GVF based anisotropic diffusion will be helpful to remove the jagged effects as well as keep the texture structures. Meanwhile, the Gaussian moving average LR model provides a data fidelity constraint which makes the results more close to the ideal HR images. Experiments results show that the proposed method can improve the quality of magnified image in terms of both the objective and subjective.

Keyword:

Iterative methods Image segmentation Textures Image enhancement Diffusion Optical anisotropy

Author Community:

  • [ 1 ] [Li, Xiao-Guang]Signal and Information Processing Laboratory, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Shen, Lan-Sun]Signal and Information Processing Laboratory, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Lam, Kin-Man]Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hong Kong, Hong Kong
  • [ 4 ] [Wang, Su-Yu]Signal and Information Processing Laboratory, Beijing University of Technology, Beijing 100124, China

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Source :

Acta Electronica Sinica

ISSN: 0372-2112

Year: 2008

Issue: 9

Volume: 36

Page: 1755-1758

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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