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Computers 2017, 6(3), 23; doi:10.3390/computers6030023

Data Partitioning Technique for Improved Video Prioritization

1
Department of Electrical and Computer Engineering, University of Duhok, Duhok P.O. Box 78, Iraq
2
School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK
This paper is an extended version of our paper published in 8th Conference on Computer Science and Electronic Engineering, Colchester, UK, 2016.
*
Author to whom correspondence should be addressed.
Received: 4 April 2017 / Revised: 2 July 2017 / Accepted: 4 July 2017 / Published: 6 July 2017
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Abstract

A compressed video bitstream can be partitioned according to the coding priority of the data, allowing prioritized wireless communication or selective dropping in a congested channel. Known as data partitioning in the H.264/Advanced Video Coding (AVC) codec, this paper introduces a further sub-partition of one of the H.264/AVC codec’s three data-partitions. Results show a 5 dB improvement in Peak Signal-to-Noise Ratio (PSNR) through this innovation. In particular, the data partition containing intra-coded residuals is sub-divided into data from: those macroblocks (MBs) naturally intra-coded, and those MBs forcibly inserted for non-periodic intra-refresh. Interactive user-to-user video streaming can benefit, as then HTTP adaptive streaming is inappropriate and the High Efficiency Video Coding (HEVC) codec is too energy demanding. View Full-Text
Keywords: data partitioning; error resiliency; video coding; wireless channels data partitioning; error resiliency; video coding; wireless channels
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Ali, I.A.; Moiron, S.; Fleury, M.; Ghanbari, M. Data Partitioning Technique for Improved Video Prioritization. Computers 2017, 6, 23.

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