Title :
Decoupled 3-D Zerotree Structure for Wavelet-Based Video Coding
Author :
Zhang, Liang ; Wang, Demin ; Vincent, André
Author_Institution :
Commun. Res. Centre Canada, Ottawa, ON
Abstract :
A novel data structure is proposed for magnitude-ordering 3-D wavelet transform coefficients. This data structure consists of temporal 1-D orientation trees followed by spatial 2-D orientation trees. Based on this data structure, a coding algorithm is developed for the embedded coding of 3-D wavelet transform coefficients. Experiment results confirm that the proposed coding algorithm outperforms a conventional algorithm that uses asymmetric 3-D orientation trees.
Keywords :
data structures; transform coding; trees (mathematics); video coding; wavelet transforms; data structure; decoupled 3D zerotree structure; magnitude-ordering 3D wavelet transform; spatial 2D orientation trees; temporal 1D orientation trees; wavelet-based video coding; Data structures; Discrete cosine transforms; Helium; IPTV; Image coding; Partitioning algorithms; Tree data structures; Video coding; Wavelet coefficients; Wavelet transforms; Embedded coding; set partitioning in hierarchical trees (SPIHT); video coding; wavelet transform;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2008.2000551
