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Barbell-Lifting Based 3-D Wavelet Coding Scheme

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4 Author(s)
Ruiqin Xiong ; Chinese Acad. of Sci., Beijing ; Jizheng Xu ; Feng Wu ; Shipeng Li

This paper provides an overview of the Barbell lifting coding scheme that has been adopted as common software by the MPEG ad hoc group on further exploration of wavelet video coding. The core techniques used in this scheme, such as Barbell lifting, layered motion coding, 3D entropy coding and base layer embedding, are discussed. The paper also analyzes and compares the proposed scheme with the oncoming scalable video coding (SVC) standard because the hierarchical temporal prediction technique used in SVC has a close relationship with motion compensated temporal lifting (MCTF) in wavelet coding. The commonalities and differences between these two schemes are exhibited for readers to better understand modern scalable video coding technologies. Several challenges that still exist in scalable video coding, e.g., performance of spatial scalable coding and accurate MC lifting, are also discussed. Two new techniques are presented in this paper although they are not yet integrated into the common software. Finally, experimental results demonstrate the performance of the Barbell-lifting coding scheme and compare it with SVC and another well-known 3D wavelet coding scheme, MC embedded zero block coding (MC-EZBC).

Published in:

IEEE Transactions on Circuits and Systems for Video Technology  (Volume:17 ,  Issue: 9 )