Three-dimensional lifting schemes for motion compensated video compression

Three-dimensional wavelet decompositions are efficient tools for scalable video coding. We show a lifting formulation for these decompositions. The temporal wavelet transform is inherently nonlinear, due to the motion estimation step, and the lifting formalism allows us to provide several improvemen...

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Bibliographic Details
Main Authors: Pesquet-Popescu, B., Bottreau, V.
Format: Conference Proceeding
Language:English
Subjects:
Filtering
Filters
Motion analysis
Motion compensation
Motion estimation
Multiresolution analysis
Scalability
Spatial resolution
Video compression
Wavelet transforms
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Description
Summary:Three-dimensional wavelet decompositions are efficient tools for scalable video coding. We show a lifting formulation for these decompositions. The temporal wavelet transform is inherently nonlinear, due to the motion estimation step, and the lifting formalism allows us to provide several improvements to the scheme initially proposed by Choi and Woods: a better processing of the uncovered areas is proposed and an overlapped motion-compensated temporal filtering method is introduced in the multiresolution decomposition. As shown by simulations, the proposed method results in higher coding efficiency, while keeping the scalability functionalities.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2001.941289