NDLI: Model-based optimal rate control algorithm for real-time hybrid video encoder

Content Provider	IEEE Xplore Digital Library
Author	He-Yuan Lin Gwo Giun Lee Ming-Jiun Wang Drew Wei-Chi Su Bo-Yun Lin
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan (He-Yuan Lin; Gwo Giun Lee; Ming-Jiun Wang; Drew Wei-Chi Su; Bo-Yun Lin)
Abstract	This paper presents a frame level optimal rate control scheme based on the proposed rate and distortion functions. A linear rate-quantizer model and a linear distortion-quantizer model are proposed to perform rate-distortion optimization. The coefficients of rate distortion models are estimated by linear regression with the past rate distortion characteristics. We propose the two-stage strategy for rate-distortion optimization. First we use Lagrange multiplier optimization approach to obtain the closed-form solution based on our rate distortion models. Then we take the inter-frame dependency into account to further adjust bit rate allocation. We apply our optimal rate control algorithm to H.264, and the proposed algorithm outperforms JVT-G012 rate control scheme in terms of average PSNR
Sponsorship	The Inst. of Electr. and Electron. Eng., Inc. Circuits and Syst. Soc. (IEEE CASS)
Starting Page	4
Ending Page	4458
File Size	1533703
Page Count	4455
File Format	PDF
ISBN	0780393899
DOI	10.1109/ISCAS.2006.1693618
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-21
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimal control Bit rate Rate-distortion Video compression Quadratic programming Rate distortion theory Computational complexity PSNR Encoding Linear regression
Content Type	Text
Resource Type	Article

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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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