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CLC number: TN919.8

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Received: 2006-07-28

Revision Accepted: 2007-01-22

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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.6 P.841~848

10.1631/jzus.2007.A0841


An adaptive fuzzy filter for coding artifacts removal in video and image


Author(s):  WU Jing, YE Xiu-qing, GU Wei-kang

Affiliation(s):  Department of Information and Communication Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   Catherine_jw@sina.com

Key Words:  Adaptive fuzzy filter, Blocking artifacts, Ringing artifacts, De-blocking, De-ringing


WU Jing, YE Xiu-qing, GU Wei-kang. An adaptive fuzzy filter for coding artifacts removal in video and image[J]. Journal of Zhejiang University Science A, 2007, 8(6): 841~848.

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author="WU Jing, YE Xiu-qing, GU Wei-kang",
journal="Journal of Zhejiang University Science A",
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pages="841~848",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A0841"
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A0841

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DOI - 10.1631/jzus.2007.A0841


Abstract: 
This paper proposes a new adaptive post-filtering algorithm to remove coding artifacts in block-based video coder. The proposed method concentrates on blocking and ringing artifacts removal. For de-blocking, the blocking strength is identified to determine the filtering range, and the maximum quantization parameter of the image is used to adapt the 1D fuzzy filter. For de-ringing, besides the edge detection, a complementary ringing detection method is proposed to locate the neglected ringing blocks, and the gradient threshold is adopted to adjust the parameter of 2D fuzzy filter. Experiments are performed on the MPEG-4 sequences. Compared with other methods, the proposed one achieves better detail preservation and artifacts removal performance with lower computational cost.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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[2] Gan, X.C., Liew, A.W.C., Yan, H., 2003. Blocking artifact reduction in compressed images based on edge-adaptive quadrangle meshes. J. Visual Commun. Image Represent., 14(4):492-507.

[3] ISO/IEC 14496-2, 2001. Information Technology—Generic Coding of Audio-Visual Objects. Part 2: Visual. 2nd Ed., Appendix F3: Post-processing for Coding Noise Reduction.

[4] Kim, S.D., Yi, J., Kim, H.M., Ra, J.B., 1999. A deblocking filter with two separate modes in block-based video coding. IEEE Trans. on Circuits Syst. Video Technol., 9(1):156-160.

[5] Kirenko, I.O., 2006. Reduction of Coding Artifacts Using Chrominance and Luminance Spatial Analysis. International Conference on Consumer Electronics, p.209-210.

[6] Kuo, Y.H., Lee, C.S., Liu, C.C., 1997. A New Fuzzy Edge Detection Method for Image Enhancement. Proc. 6th IEEE International Conference on Fuzzy Systems, 2:1069-1074.

[7] Liew, A.W.C., Yan, H., 2004. Blocking artifacts suppression in block-coded images using overcomplete wavelet representation. IEEE Trans. on Circuits Syst. Video Technol., 14(4):450-461.

[8] Nie, Y., Barner, K.E., 2003. Fuzzy Transformation and its Applications. International Conference on Image Processing, 1:893-896.

[9] Nie, Y., Kong, H.S., Vetro, A., Sun, H.F., Barner, K.E., 2005. Fast Adaptive Fuzzy Post-filtering for Coding Artifacts Removal in Interlaced Video. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2:993-996.

[10] Nie, Y., Barner, K.E., 2006. The fuzzy transformation and its applications in image processing. IEEE Trans. on Image Processing, 15(4):910-927.

[11] Wu, H.R., Yuen, M., 1997. A generalized block-edge impairment metric for video coding. IEEE Signal Processing Lett., 4(11):317-320.

[12] Wu, S., Yan, H., Tan, Z., 2001. An efficient wavelet-based deblocking algorithm for highly compressed images. IEEE Trans. on Circuits Syst. Video Technol., 11(11):1193-1198.

[13] Yang, S., Hu, Y.H., Tull, D.L., Nguyen, T.Q., 2000. Maximum-likelihood Parameter Estimation for Image Ringing-artifact Removal. International Conference on Image Processing, 1:888-891.

[14] Yao, S.S, Lin, W.S., Lu, Z.K., Ong, E.P., Yang, X.K., 2004. Adaptive Nonlinear Diffusion Processes for Ringing Artifacts Removal on JPEG 2000 Images. IEEE International Conference on Multimedia and Expo, 1:691-694.

[15] Zou, J.J., Yan, H., 2005. A deblocking method for BDCT compressed images based on adaptive projections. IEEE Trans. on Circuits Syst. Video Technol., 15(3):430-435.

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