NDLI: Intra motion compensation and entropy coding improvements for HEVC screen content coding

Content Provider	IEEE Xplore Digital Library
Author	Budagavi, M. Do-Kyoung Kwon
Copyright Year	2013
Description	Author affiliation: Embedded Process. R&D Center, Texas Instrum., Inc., Dallas, TX, USA (Budagavi, M.; Do-Kyoung Kwon)
Abstract	Applications such as wireless displays, automotive infotainment, remote desktop, remote gaming, distance education, cloud computing etc. are becoming popular. Video in these applications often has mixed content consisting of natural video and screen content (text, graphics etc.) in the same picture. In text and graphics regions, patterns such as text characters, icons, lines etc. can repeat within a picture. Also since the graphics and text regions have sharp edges that are sometimes not predicted well by Intra prediction tools, the probability of prediction error having high amplitude increases. This paper presents two tools for improving the intra coding efficiency of the High Efficiency Video Coding (HEVC) standard when coding screen content. The first tool is a Coding Unit (CU)-level Intra motion compensation tool to eliminate redundancy from repeating patterns in text and graphics regions. The second tool is a modification to HEVC cRiceParam update process of coeff_abs_level_remaining entropy coding to adapt better to larger prediction errors in text and graphics regions. The combination of the two tools achieves an average bit-rate/Bjontegaard Delta-Rate savings in the range of 0.8% to 28.1% over HEVC Range Extensions Test Model on screen content test video sequences used in Range Extensions core experiments by the Joint Collaborative Team for Video Coding (JCT-VC).
Sponsorship	IEEE Signal Process. Soc.
Starting Page	365
Ending Page	368
File Size	167985
Page Count	4
File Format	PDF
e-ISBN	9781479902941
DOI	10.1109/PCS.2013.6737759
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Graphics Video coding Motion compensation Entropy coding Artificial intelligence Standards
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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