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 block...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.展开更多
Y2000-62515-877 0105991信号处理/通信(含5篇文章)=Session WA4:Signalprocessing/eommumcation[会,英]//2000 the NinthIEEE International Conference on Fuzzy systems.Vol.2of 2.—877~905(NiK)本部分收录五篇论文,内容涉及广义高...Y2000-62515-877 0105991信号处理/通信(含5篇文章)=Session WA4:Signalprocessing/eommumcation[会,英]//2000 the NinthIEEE International Conference on Fuzzy systems.Vol.2of 2.—877~905(NiK)本部分收录五篇论文,内容涉及广义高木-关野-抗动态模糊神经网络在自适应噪声对消中的应用,非线性时变信道采用型2模糊自适应滤波器的决策反馈平衡器,主动网络中的模糊服务选择,采用模糊子带分解的图像压缩,基于线性矩阵不等式的模糊混沌同步与通信。展开更多
文摘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.
文摘Y2000-62515-877 0105991信号处理/通信(含5篇文章)=Session WA4:Signalprocessing/eommumcation[会,英]//2000 the NinthIEEE International Conference on Fuzzy systems.Vol.2of 2.—877~905(NiK)本部分收录五篇论文,内容涉及广义高木-关野-抗动态模糊神经网络在自适应噪声对消中的应用,非线性时变信道采用型2模糊自适应滤波器的决策反馈平衡器,主动网络中的模糊服务选择,采用模糊子带分解的图像压缩,基于线性矩阵不等式的模糊混沌同步与通信。