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Main Title: In-layer multibuffer framework for rate-controlled scalable video coding
Author(s): Sanz-Rodríguez, Sergio
Díaz-de-María, Fernando
Type: Article
Language Code: en
Abstract: Temporal scalability is supported in scalable video coding (SVC) by means of hierarchical prediction structures, where the higher layers can be ignored for frame rate reduction. Nevertheless, this kind of scalability is not totally exploited by the rate control (RC) algorithms since the hypothetical reference decoder (HRD) requirement is only satisfied for the highest frame rate substream of every dependence (spatial or coarse grain scalability) layer. In this paper, we propose a novel RC approach that aims to deliver several HRD-compliant temporal resolutions within a particular dependence layer. Instead of using the common SVC encoder configuration consisting of a dependence layer per each temporal resolution, a compact configuration that does not require additional dependence layers for providing different HRD-compliant temporal resolutions is proposed. Specifically, the proposed framework for rate-controlled SVC uses a set of virtual buffers within a dependence layer so that their levels can be simultaneously controlled for overflow and underflow prevention while minimizing the reconstructed video distortion of the corresponding substreams. This in-layer multibuffer approach has been built on the top of a baseline H.264/SVC RC algorithm for variable bit rate applications. The experimental results show that our proposal achieves a good performance in terms of mean quality, quality consistency, and buffer control using a reduced number of layers.
Issue Date: 2012
Date Available: 23-Feb-2017
DDC Class: 004 Datenverarbeitung; Informatik
620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): H.264/SVC
H.264/advanced video coding (AVC)
hypothetical reference decoder (HRD)
rate control (RC)
scalable video coding (SVC)
variable bit rate (VBR)
Journal Title: IEEE transactions on circuits and systems for video technology : a publication of the Circuits and Systems Society
Publisher: IEEE
Publisher Place: New York, NY [u.a.]
Volume: 22
Issue: 8
Publisher DOI: 10.1109/TCSVT.2012.2198089
Page Start: 1199
Page End: 1212
EISSN: 1558-2205
ISSN: 1051-8215
Appears in Collections:FG Architektur eingebetteter Systeme » Publications

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