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Invertible three-dimensional analysis/synthesis system for video coding with half-pixel-accurate motion compensation

机译:具有半像素精确运动补偿的视频编码可逆三维分析/合成系统

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Abstract: Three-dimensional subband coding with motion compensation (MC- 3DSBC) has been demonstrated $LB@1-4$RB to be an efficient technique for video coding applications. With half-pixel- accurate motion compensation, images need to be interpolated for motion-compensated (MC) temporal filtering. The resulting analysis/synthesis system is not invertible. In this paper, we propose a new three-dimensional analysis/synthesis system which guarantees perfect reconstruction and has a nonrecursive coding structure. We replaced the analysis/synthesis system of $LB@1$RB by the new scheme. The resulting coding system does not have distortion from the analysis/synthesis system and allocate bits among classes of 3-D subbands optimally in the sense of rate-distortion function. The experimental results show that the proposed video coding system improves $LB@1$RB by PSNR .3 - 2.0 dB and TM5 MPEG $LB@10$RB by PSNR 2.1 - 3.0 dB over a range of bit rates. !10
机译:摘要:已经证明具有运动补偿的三维子带编码(MC-3DSBC)$ LB @ 1-4 $ RB是一种有效的视频编码应用技术。使用半像素精确的运动补偿,需要对图像进行插值以进行运动补偿(MC)时间滤波。最终的分析/合成系统是不可逆的。在本文中,我们提出了一种新的三维分析/合成系统,该系统可确保完美的重构并具有非递归编码结构。我们用新方案替换了$ LB @ 1 $ RB的分析/合成系统。所得的编码系统不具有来自分析/合成系统的失真,并且在速率失真函数的意义上,在3-D子带类别之间最佳地分配了比特。实验结果表明,所提出的视频编码系统在一定的比特率范围内将PSNR .3-2.0 dB提高了$ LB @ 1 $ RB,将PSNR 2.1-3.0 dB提高了TM5 MPEG $ LB @ 10 $ RB。 !10

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