NDLI: Adaptive rate control for High Efficiency Video Coding

Content Provider	IEEE Xplore Digital Library
Author	Junjun Si Siwei Ma Xinfeng Zhang Wen Gao
Copyright Year	2012
Description	Author affiliation: Key Lab of Information Processing, Institute of Computing Technology, Chinese Academy of Sciences (Xinfeng Zhang) \|\| Institute of Digital Media, Peking University, Beijing 100871, China (Junjun Si; Siwei Ma; Wen Gao)
Abstract	A frame level adaptive rate control scheme for the emerging High Efficiency Video Coding (HEVC) standard is proposed in this paper, where both rate model and distortion model are provided. For rate modeling, a new rate model is proposed based on the weighted complexity estimation of the previously encoded frames. For distortion modeling, the distortion is modeled as an exponential function of the sum of absolute transformed difference (SATD) and the quantization parameter of the current frame. Moreover, a quality smoothing method based on the distortion model is proposed to reduce the quality fluctuation. The proposed rate control algorithm is implemented into HM5.0. The proposed scheme can control the bitrate acrruately with smoothing quality, and the coding gain compared with state-of-the-art technique is up to 0.64dB for LB HE & LB LC, 0.33dB, 0.31dB, 0.42dB, 0.44dB for LP HE, LP LC, RA HE and RA LC respectively.
Starting Page	1
Ending Page	6
File Size	768486
Page Count	6
File Format	PDF
ISBN	9781467344050
e-ISBN	9781467344074
e-ISBN	9781467344067
DOI	10.1109/VCIP.2012.6410769
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding Adaptation models PSNR Smoothing methods Quality smoothing Quantization Encoding HEVC Mathematical model Rate control
Content Type	Text
Resource Type	Article

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