Exploiting inter-layer correlations in scalable HEVC for the support of screen content videos

Sik Ho Tsang, Yui Lam Chan, Wan Chi Siu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

13 Citations (Scopus)

Abstract

In this paper, we propose a scalable video coding (SVC) scheme for efficient coding of screen content videos while still providing the backward compatibility of HEVC (High Efficiency Video Coding). By this means, the base layer is encoded as an HEVC-compatible bitstream while the enhancement layer is encoded with the proposed screen content coding (SCC) techniques for the support of screen content videos. For the enhancement layer, Base Colors plus Escape Colors (BCEC) approach is used in which a textual block is represented by base colors, escape colors and an index map. To further enhance the coding efficiency of enhancement layer, inter-layer intra prediction for BCEC is introduced by using index map differential coding and index map reuse techniques. Experimental results show that the proposed algorithm can achieve 8.0% bitrate reduction in average and up to 18.9% bitrate reduction for screen content video as compared with the conventional scalable HEVC.
Original languageEnglish
Title of host publication2014 19th International Conference on Digital Signal Processing, DSP 2014
PublisherIEEE
Pages888-892
Number of pages5
Volume2014-January
ISBN (Electronic)9781479946129
DOIs
Publication statusPublished - 1 Jan 2014
Event2014 19th International Conference on Digital Signal Processing, DSP 2014 - Hong Kong, Hong Kong
Duration: 20 Aug 201423 Aug 2014

Conference

Conference2014 19th International Conference on Digital Signal Processing, DSP 2014
Country/TerritoryHong Kong
CityHong Kong
Period20/08/1423/08/14

Keywords

  • Base colors
  • Escape colors
  • HEVC
  • Inter-layer intra prediction
  • Scalable video coding
  • Screen content coding

ASJC Scopus subject areas

  • Signal Processing

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