NDLI: Complexity reduced mode selection of H.264/AVC intra coding

Content Provider	IEEE Xplore Digital Library
Author	Sarwer, M.G. Lai-Man Po Wu, J.
Copyright Year	2008
Description	Author affiliation: Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong (Sarwer, M.G.; Lai-Man Po)
Abstract	One of the new features in the H.264/AVC encoder is the use of Lagrangian rate-distortion optimization (RDO) method during mode decision at the macroblock level. The RDO technique has been employed in H.264/AVC for intra prediction mode selection to achieve better coding efficiency. But the computation complexity of mode decision algorithm is extremely high. To reduce the complexity of mode decision, we propose an efficient and fast 4 times 4 intra prediction mode selection scheme. The proposed method reduces the candidate of the prediction modes based on the sum of absolute transformed difference (SATD) between the original block and the intra predicted block. Rank of each mode is obtained based on the SATD value. The candidate modes are further reduced by using the combination of rank and most probable mode. Simulation results demonstrate that the proposed mode decision method reduces about 95% of mode decision time of intra coding with ignorable degradation of coding performance.
Starting Page	1492
Ending Page	1496
File Size	200769
Page Count	5
File Format	PDF
ISBN	9781424417230
DOI	10.1109/ICALIP.2008.4590056
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	PSNR Video sequences Rate-distortion Containers Automatic voltage control Encoding Complexity theory
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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