NDLI: Fast CU size decision and PU mode decision algorithm in HEVC intra coding

Content Provider	IEEE Xplore Digital Library
Author	Xiwu Shang Guozhong Wang Tao Fan Yan Li
Copyright Year	2015
Description	Author affiliation: Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China (Xiwu Shang; Guozhong Wang; Tao Fan; Yan Li)
Abstract	High Efficiency Video Coding (HEVC) is a new video compression standard for high resolution video content, which only needs 50% bit rate of the H.264/AVC at the same perceptual quality. However, high computational complexity increases dramatically for adopting quad-tree structured Coding Unit (CU). In this paper, a fast CU size decision and Prediction Unit (PU) mode decision algorithm is presented for HEVC intra coding. It exploits the depth information of neighboring CUs to make an early CU split decision or CU pruning decision. Moreover, there are correlations between the higher layer prediction mode and current layer mode in PUs. By using these correlations, we can terminate some prediction modes which are rarely selected as the optimal mode. Experimental results illustrate that the proposed method can save 37.91% computational complexity on average as compared with the current HM with only 0.66% increase in BDBR and 0.03 dB loss in BDPSNR.
Starting Page	1593
Ending Page	1597
File Size	961074
Page Count	5
File Format	PDF
e-ISBN	9781479983391
DOI	10.1109/ICIP.2015.7351069
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-27
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Encoding Prediction algorithms Image edge detection Correlation Algorithm design and analysis Computational complexity Video coding intra coding HEVC size decision mode decision
Content Type	Text
Resource Type	Article

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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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