Paper Info
Title
A pixel-domain mode-mapping based SVC-to-AVC transcoder with coarse grain quality scalability
Abstract
As an extension of AVC, SVC provides the ability to adapt to heterogeneous environments. However, transcoding between SVC and AVC becomes necessary due to the existence of legacy AVC-based systems. This paper proposes a low-complexity SVC-to-AVC CGS transcoder in the pixel domain, which achieves approximately the same coding efficiency as the full re-encoding method. The output AVC bitstream modes are deduced by the proposed mode-mapping strategy. Different from previous works which simply use full search for SVC modes, the SVC modes are also examined and refined to generate suitable AVC modes in the proposed method. Simulation results show that proposed transcoder achieves 10 times speed-up with only 2% BDBR increase and 0.08 dB BDPSNR loss, compared with the full re-encoding method.
Year
Venue
Keywords
2012
ICPR
coding efficiency,pixel-domain mode-mapping,full reencoding method,pixel domain,mode-mapping strategy,scalable video coding,computational complexity,coarse grain quality scalability,video coding,legacy avc-based systems,output avc bitstream modes,low-complexity svc-to-avc cgs transcoder,heterogeneous environments
Field
DocType
ISSN
Transcoding,Context-adaptive variable-length coding,Computer science,Real-time computing,Artificial intelligence,Scalable Video Coding,Context-adaptive binary arithmetic coding,Computer vision,Algorithmic efficiency,Algorithm,Pixel,Bitstream,Scalability
Conference
1051-4651
ISBN
Citations 
PageRank 
978-1-4673-2216-4
0
0.34
References 
Authors
5
3
Name
Order
Citations
PageRank
Lei Sun12615.36
Zhenyu Liu217223.22
Takeshi Ikenaga3618125.50