Motion driven adaptive transform based on wavelet transform for enhanced video coding

Authors:
Nikola Sprljan;Marta Mrak;Ebroul Izquierdo
Affiliations:
University of London, London, UK;University of London, London, UK;University of London, London, UK
Venue:
MobiMedia '06 Proceedings of the 2nd international conference on Mobile multimedia communications
Year:
2006

Citing 3
Cited 1

JPEG 2000: Image Compression Fundamentals, Standards and Practice

JPEG 2000: Image Compression Fundamentals, Standards and Practice
A flexible structure for fully scalable motion-compensated 3-D DWT with emphasis on the impact of spatial scalability

IEEE Transactions on Image Processing
Bidirectional MC-EZBC with lifting implementation

IEEE Transactions on Circuits and Systems for Video Technology

Utilisation of edge adaptive upsampling in compression of depth MAP videos for enhanced free-viewpoint rendering

ICIP'09 Proceedings of the 16th IEEE international conference on Image processing

Quantified Score

Hi-index	0.00

Visualization

Abstract

Spatial wavelet transform in video coding has traditionally been applied in a non-adaptive fashion. However, since motion compensation introduces specific structure into video frames, adaptive spatial transform can introduce additional coding gain. As the structure introduced by motion compensation depends on applied motion parameters, the same motion information can be used as an adaptation parameter in spatial decomposition. Specifically, in this paper motion driven adaptation on wavelet transform in its lifting implementation is proposed. The introduced computational complexity of the proposed method is low as only a few additional multiplications are introduced per lifting step. Since in this case the same motion information is available at both encoder and decoder, transmission of additional side information is not needed. Besides better energy compaction, the proposed scheme introduces considerable gain when applied in scalable video coding.