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—Three-dimensional (3-D) wavelet-based scalable video coding provides a viable alternative to standard MC-DCT coding. However, many current 3-D wavelet coders experience severe boundary effects across group of pictures (GOP) boundaries. This paper proposes a memory-efficient transform technique via lifting that effectively computes wavelet transforms of a(More)
—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, 3-D entropy coding and base layer embedding, are discussed. The paper also analyzes(More)
This paper proposes a framework of scalable motion estimation and coding with the structure of multi-layers for 3D wavelet video coding. The motion representation consists of multiple laycrs. The encoder uses motion of all layers to perform analysis, while the decoder may receive only part of motion for synthesis. Different from other schemes, each layer of(More)
—This paper presents the theory and the design of intra-predictive transforms, which unify the inter-block prediction and block-based transforms in block-based image coding. Motivated by interpreting inter-block prediction as a transform with a larger size, we derive the concept of intra-predictive transforms. Conventional predictions and transforms can be(More)