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116 6 Barbell-Lifting Based 3D Wavelet Coding
proposed Barbell-lifting model. These techniques can improve the compression effi-
ciency of 3D wavelet video coding.
In the prediction step of our proposed coding scheme, we mainly borrow some
mature MC prediction techniques from conventional video coding schemes and in-
corporate them into the Barbell-lifting framework. There are also several other tech-
niques developed in other wavelet coding schemes for the MC prediction step. A
typical one is hierarchical variable size block matching (HVSBM) [62, 67], which
consists of constructing an initial full motion vector tree and pruning it subject to a
given bit rate.
(2) Motion Compensated Update—The update step in Barbell lifting is performed
according ...