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Video on mobile CPU: UHD video parallel decoding for asymmetric multicores

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper proposes a novel High Efficiency Video Coding (HEVC) Tile partitioning method for parallel processing by analyzing the computing ability of asymmetric multicores. The proposed method (i) analyzes the computing ability of asymmetric multicores and (ii) makes a regression model of computational complexity per video resolutions. Finally, the model (iii) determines the optimal HEVC Tile resolution for each core and partitions/allocates the Tiles to suitable cores. The proposed method minimizes the decoding time gap between faster CPU cores and power-efficient cores (big/LITTLE cores). Experimental results with 4K ultra-high definition (UHD) test sequences show an average improvement of 25% in decoding speed for most recent Android smart phones.

Original languageEnglish
Title of host publicationProceedings of the 8th ACM Multimedia Systems Conference, MMSys 2017
PublisherAssociation for Computing Machinery, Inc
Pages229-232
Number of pages4
ISBN (Electronic)9781450334891
DOIs
StatePublished - 20 Jun 2017
Externally publishedYes
Event8th ACM Multimedia Systems Conference, MMSys 2017 - Taipei, Taiwan, Province of China
Duration: 20 Jun 201723 Jun 2017

Publication series

NameProceedings of the 8th ACM Multimedia Systems Conference, MMSys 2017

Conference

Conference8th ACM Multimedia Systems Conference, MMSys 2017
Country/TerritoryTaiwan, Province of China
CityTaipei
Period20/06/1723/06/17

Keywords

  • Asymmetric multicores
  • HEVC
  • Parallel video processing
  • Tile

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