NDLI: Constant distortion rate control for H.264/AVC high definition videos with scene change

Content Provider	IEEE Xplore Digital Library
Author	Dongdong Zhang Zhenzhong Chen King Ngi Ngan
Copyright Year	2008
Description	Author affiliation: Dept. of Electron. Eng., CUHK, Hong Kong (Dongdong Zhang; Zhenzhong Chen; King Ngi Ngan)
Abstract	In this paper, we propose a constant distortion rate control algorithm for H.264/AVC high definition videos with scene change. With the rate and distortion information of each frame, the frame scene complexity is modeled and the scene change is detected in the first pass encoding. In the second-pass encoding, the expected distortion of each GOP under the constraint of target bits is derived based on the first-pass statistics. And the quantization step (Q-step) of each frame can be obtained with a linear distortion-quantizer (D-Q) model by considering the parameter update of this model at scene change. The experimental results show that our proposed algorithm can provide more constant quality among different video scenes, compared to traditional joint model (JM) rate control algorithm.
Starting Page	3498
Ending Page	3501
File Size	224056
Page Count	4
File Format	PDF
ISBN	9781424416837
DOI	10.1109/ISCAS.2008.4542213
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rate distortion theory Automatic voltage control High definition video Layout Encoding Statistics Quantization Quadratic programming Video sequences Bit rate
Content Type	Text
Resource Type	Article

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