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http://dx.doi.org/10.5909/JBE.2017.22.4.484

Tile, Slice, and Deblocking Filter Parallelization Method in HEVC  

Son, Sohee (Information of Departments, Hanbat National University)
Baek, Aram (Information of Departments, Hanbat National University)
Choi, Haechul (Information of Departments, Hanbat National University)
Publication Information
Journal of Broadcast Engineering / v.22, no.4, 2017 , pp. 484-495 More about this Journal
Abstract
The development of display devices and the increase of network transmission bandwidth bring demands for over 2K high resolution video such as panorama video, 4K ultra-high definition commercial broadcasting, and ultra-wide viewing video. To compress these image sequences with significant amount of data, High Efficiency Video Coding (HEVC) standard with the highest coding efficiency is a promising solution. HEVC, the latest video coding standard, provides high encoding efficiency using various advanced encoding tools, but it also requires significant amounts of computation complexity compared to previous coding standards. In particular, the complexity of HEVC decoding process is a imposing challenges on real-time playback of ultra-high resolution video. To accelerate the HEVC decoding process for ultra high resolution video, this paper introduces a data-level parallel video decoding method using slice and/or tile supported by HEVC. Moreover, deblocking filter process is further parallelized. The proposed method distributes independent decoding operations of each tile and/or each slice to multiple threads as well as deblocking filter operations. The experimental results show that the proposed method facilitates executions up to 2.0 times faster than the HEVC reference software for 4K videos.
Keywords
HEVC; video coding; Parallelization; Distribution;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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