Pattern-matching scheme for HEVC screen content coding
- DOI
- 10.2991/iccsae-15.2016.170How to use a DOI?
- Keywords
- Basic color; Index map; Dictionary coding; Hash-table; Fast dictionary searching.
- Abstract
Screen Content refers to image/video generated by electronic devices, like cartoons, 3-D games or captures of computer screens or video with text overlay etc. The existing video coding techniques don’t perform well on screen content. In this paper, the characteristics of screen content and coding efficiency of HEVC on screen content are analyzed. This paper proposes a pattern-matching mode aimed at improving the coding efficiency for screen content video based on HEVC. The scheme uses basic color and index map (BCIM) to convert the pixel values in a CU to index values. Then a dictionary based coding method is adopted to code the index values. In addition, a fast dictionary searching algorithm based on hash-table is proposed to reduce the string matching time. The experiment result shows the proposed mode achieves significant coding efficiency improvement on screen content compared with HEVC.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yawei Xu AU - Jianxin Song PY - 2016/02 DA - 2016/02 TI - Pattern-matching scheme for HEVC screen content coding BT - Proceedings of the 2015 5th International Conference on Computer Sciences and Automation Engineering PB - Atlantis Press SP - 916 EP - 921 SN - 2352-538X UR - https://doi.org/10.2991/iccsae-15.2016.170 DO - 10.2991/iccsae-15.2016.170 ID - Xu2016/02 ER -