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http://dx.doi.org/10.3745/KIPSTB.2006.13B.3.245

A Bitrate Control considering Interframe Variance of Image for H.264/AVC  

Son Nam-Rye (전남대학교 컴퓨터정보학부)
Lee Guee-Sang (전남대학교 컴퓨터정보학부)
Publication Information
The KIPS Transactions:PartB / v.13B, no.3, 2006 , pp. 245-254 More about this Journal
Abstract
In this work, a new rate control algorithm for transmission of H.264/AVC video bit stream through CBR(constant bit rate) channel is proposed. The proposed algorithm predicts target bit rate and MAD(mean of absolute difference) for current frame considering image complexity variance between neighboring backward and current images. In details, respective linear regression analysis for MAD and encoded bit rate against image complexity variance produce correlation parameters. Additionally, it uses frame skip technique to maintain bit stream within a manageable range and protect buffer from overflow or underflow. Implementation and experimental results show that the proposed algorithm can provide accurate bit allocation, and can effectively visual degradation after scene changes. Also our proposed algorithm encodes the video sequences with less frame skipping compared to the existing rate control for H.264/AVC.
Keywords
H.264/AVC; Bit Rate Control; Frame Skipping; MAD(Mean of Absolute Difference);
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