NDLI: Scalable video compression framework with adaptive multiresolution directional filter bank design

Content Provider	IEEE Xplore Digital Library
Author	Lingchen Zhu Hongkai Xiong
Copyright Year	2010
Description	Author affiliation: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China (Lingchen Zhu; Hongkai Xiong)
Abstract	Regarding orientation resolution as an isolated variable from scale, this paper proposes a dual (scale and orientation) multiresolution transform into scalable video coding (SVC) framework. By projecting 2D signals (textures and edges) onto nonuniformly divided orientation subspaces, the dual multiresolution SVC (DMSVC) can capture 2-D curve smoothness with less coefficients, and provide more flexible spatial decomposition structures than traditional wavelet-based SVC (WSVC). In the spatial decomposition module of DMSVC, the nonuniform directional distribution along scale of each frame is detected by phase congruency in the overcomplete wavelet domain. The corresponding orientational multi-resolution is achieved by nonuniform directional filter banks (NUDFB) which is fulfilled via a non-symmetric binary tree (NSBT) structured frequency division. The wavelet basis function in each scale is converted to an adaptive set of nonuniform directional basis by employing nonuniform directional filter banks. Experimental results validate a superior coding performance and visual quality over WSVC especially on those sequences full of directional edges and textures.
Starting Page	414
Ending Page	417
File Size	543594
Page Count	4
File Format	PDF
ISBN	9781424471348
e-ISBN	9781424471355
DOI	10.1109/PCS.2010.5702523
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-08
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms PSNR directional filter banks Energy resolution Scalable video coding multiscale geometric analysis Spatial resolution sparse coding Signal resolution
Content Type	Text
Resource Type	Article

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