Abstract
Image restoration based on partial differential equations (PDEs) is an effective approach. However, most of the methods are based on using a local window, such as a 3×3 mask, operating on images. As a consequence, the anisotropic diffusion process seeks the local mode of a density when performing repeatedly, which may degrade the image details. However, a non-local (NL) algorithm can take advantage of all the possible self-predictions provided by the image. In this paper, image restoration based on PDEs is discussed and a NL algorithm is proposed. Experiments show that this method using the NL algorithm can improve the performance efficiently and significantly.
Project supported by the Natural Science Foundation of Fujian Province of China (No.2009J01301, 2008J0032, 2009J05087), and Science and Technology Planning Project of Xiamen (3502Z20083006).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Koenderink, J.J.: The structure of images. Biol Cybernet 50(5), 363–370 (1984)
Hummel: A representations based on zero-crossing in scale-space. In: Fischler, M., Firschein, O. (eds.) Readings in Computer Vision: Issues problems Principles and Paradigms (1986)
Perona, P., Malik, J.: Scale-space and edge detection using anisotropic diffusion. J. IEEE Trans.on PAMI 12(7), 629–639 (1990)
Catte, F., Coll, T., Lions, P.L., Morel, J.M., et al.: Image selective smoothing and edge detection by nonlinear diffusion. J. SIAM Number. Anal 29(1), 182–193 (1992)
Alvarez, L., lions, P.L., Morel, J.M.: Image selective smoothing and edge detection by nonlinear diffusion. J. SIAM Numer Anal 29(3), 845–866 (1992)
Barash, D., Comaniciu, D.: A Common Framework for Nonlinear Diffusion, Adaptive Smoothing, Bilateral Filtering and Mean Shift. J. Image and Vision Computing 22(1), 73–81 (2004)
Buades, A., Coll, B., Morel, J.-M.: A non-local algorithm for image denoising. C. In: IEEE Computer Society Conference on CVPR., vol. 2, pp. 60–65 (2005)
Bettahar, S., Stambouli, A.B.: Shock filter coupled to curvature diffusion for image denoising and sharpening. J. Image Vis Comput. 26(11), 1481–1489 (2008)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Xu, L., Zhang, X., Lam, KM., Xie, J. (2010). Image Restoration Based on PDEs and a Non-local Algorithm. In: Qiu, G., Lam, K.M., Kiya, H., Xue, XY., Kuo, CC.J., Lew, M.S. (eds) Advances in Multimedia Information Processing - PCM 2010. PCM 2010. Lecture Notes in Computer Science, vol 6298. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15696-0_34
Download citation
DOI: https://doi.org/10.1007/978-3-642-15696-0_34
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-15695-3
Online ISBN: 978-3-642-15696-0
eBook Packages: Computer ScienceComputer Science (R0)