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Main Title: Parallel scalability and efficiency of HEVC parallelization approaches
Author(s): Chi, Chi Ching
Álvarez-Mesa, Mauricio
Juurlink, Ben
Clare, Gordon
Henry, Félix
Pateux, Stéphane
Thomas, Schierl
Type: Article
Language Code: en
Abstract: Unlike H.264/advanced video coding, where parallelism was an afterthought, High Efficiency Video Coding currently contains several proposals aimed at making it more parallel-friendly. A performance comparison of the different proposals, however, has not yet been performed. In this paper, we will fill this gap by presenting efficient implementations of the most promising parallelization proposals, namely tiles and wavefront parallel processing (WPP). In addition, we present a novel approach called overlapped wavefront (OWF), which achieves higher performance and efficiency than tiles and WPP. Experiments conducted on a 12-core system running at 3.33 GHz show that our implementations achieve average speedups, for 4k sequences, of 8.7, 9.3, and 10.7 for WPP, tiles, and OWF, respectively.
Issue Date: 2012
Date Available: 13-Apr-2018
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): high efficiency video coding
parallel programming
video coding
parallel processing
video coding
bit rate
Journal Title: IEEE transactions on circuits and systems for video technology: CSVT
Publisher: Institute of Electrical and Electronics Engineers
Publisher Place: New York, NY
Volume: 22
Issue: 12
Publisher DOI: 10.1109/TCSVT.2012.2223056
Page Start: 1827
Page End: 1838
ISSN: 1558-2205
Appears in Collections:FG Architektur eingebetteter Systeme » Publications

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