NDLI: Fast and memory-efficient up-sampling methods for H.264/AVC SVC with extended spatial scalability

Content Provider	IEEE Xplore Digital Library
Author	Yong-Hwan Kim Jooyoung Yi Byeongho Choi
Copyright Year	1975
Abstract	The inter-layer prediction (ILP) including intra, residual, and motion up-sampling operation in SVC significantly increased the compression ratio compared with simulcast. The up-sampling algorithms of ILP, however, require much more memory and computational load than single-layer coding because they require several large buffers for storing up-sampled data, four-tap FIR filter, and many conditional branches, et al. This paper presents macroblock (MB)-based up-sampling methods using just-in-time strategy, where intra and residual up-sampling operations for extended spatial scalability (ESS) are selectively performed by using MB information of enhancement layer. Especially, residual up-sampling operations are largely simplified by determining transform block identification for only luma plane and by calculating and referencing the identification per 4×4 block instead of pixel. Experimental results show that the proposed algorithms speed-up the total decoding time of 3-layer (SIF/SD/Full-HD) sequences by about 64% on average and reduce the memory consumption required for up-sampling operations by about 99%, compared with the existing picture-based up-sampling algorithm for ESS.
Sponsorship	IEEE Consumer Electronics Society
File Size	306142
File Format	PDF
ISSN	00983063
Volume Number	56
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic voltage control Static VAr compensators Scalability Electronic switching systems Decoding Decision support systems Video coding IPTV Buffer storage Finite impulse response filter Scalable Video Coding (SVC), Extended Spatial Scalability (ESS), Intra up-sampling, Residual upsampling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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