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6.3 Comparisons with SVC 121
totally remove redundancy in neighboring layers and will sacrifice performance in
higher layers.
Unlike the SVC standard, the Barbell-lifting scheme uses a top-down coding
structure. As mentioned above, video signal is decomposed temporally, horizon-
tally, and vertically to spatio-temporal subbands. In a given frame-rate and resolu-
tion required, a certain set of spatio-temporal subbands corresponding to that spatio-
temporal resolution are extracted and sent to the decoder. Decorrelation is achieved
by temporal and 2D spatial wavelet transforms. The advantage is to represent the
signal in a multi-resolution way ...