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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 5, Iss. 11 — Nov. 10, 2007
  • pp: 632–635

Image denoising using least squares wavelet support vector machines

Guoping Zeng and Ruizhen Zhao  »View Author Affiliations

Chinese Optics Letters, Vol. 5, Issue 11, pp. 632-635 (2007)

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We propose a new method for image denoising combining wavelet transform and support vector machines (SVMs). A new image filter operator based on the least squares wavelet support vector machines (LS-WSVMs) is presented. Noisy image can be denoised through this filter operator and wavelet thresholding technique. Experimental results show that the proposed method is better than the existing SVM regression with the Gaussian radial basis function (RBF) and polynomial RBF. Meanwhile, it can achieve better performance than other traditional methods such as the average filter and median filter.

© 2007 Chinese Optics Letters

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.3020) Image processing : Image reconstruction-restoration
(100.5010) Image processing : Pattern recognition
(100.7410) Image processing : Wavelets

Guoping Zeng and Ruizhen Zhao, "Image denoising using least squares wavelet support vector machines," Chin. Opt. Lett. 5, 632-635 (2007)

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  1. S. G. Mallat, IEEE Trans. Pattern Analysis and Machine Intelligence 11, 674 (1989).
  2. T. T. Cai and B. W. Silverman, Sankhya B 63, 127 (2001).
  3. Q. Gao, Z. Sun, Z. Cao, and P. Cheng, Chin. Opt. Lett. 2, 113 (2004).
  4. H. Fang and D. Huang, Chin. Opt. Lett. 2, 1 (2004).
  5. V. N. Vapnik, The Nature of Statistical Learning Theory (2nd edn.) (Springer-Verlag, New York, 2000) p.174.
  6. J. A. K. Suykens and J. Vandewalle, Neural Processing Lett. 9, 293 (1999).
  7. L. Zhang, W. Zhou, and L. Jiao, IEEE Trans. System Man Cybern. B 34, 34 (2004).
  8. T. T. Cai, Statist. Sin. 12, 1241 (2002).
  9. G. Y. Chen, T. D. Bui, and A. Krzyzak, Digital Object Identifier 2, 917 (2004).
  10. H. Liu, Y. Guo, and G. Zheng, in Proceedings of the 6th World Congress on Intelligent Control and Automation (in Chinese) 4180 (2006).

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