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ICMCS
2006
IEEE

A Novel Two-Stage Rate Control Scheme for H.264

9 years 4 months ago
A Novel Two-Stage Rate Control Scheme for H.264
— A new rate control algorithm for the H.264 encoder is developed in this work. There are several unique features in the proposed rate control scheme. First, a two-stage encoding mechansim is used to resolve the problem of inter-dependency between R-D optimization (RDO) and rate control (RC) in H.264. Second, it is emphasized that the bits of the header information may occupy a larger portion of the total bit budget especially when encoding at low bit rates in H.264. To address this issue, a rate model for the header information is established so as to estimate header bits more accurately. Third, a new source rate model is proposed to estimate the quantization parameter (QP) from the residual signal. Built upon the above ideas, a rate control algorithm is developed for the H.264 baseline-profile encoder under the constant-bit-rate (CBR) constraint. It is shown by experimental results that the proposed scheme can control bit rates accurately with the R-D performance better than that ...
Do-Kyoung Kwon, Mei-Yin Shen, C. C. Jay Kuo
Added 11 Jun 2010
Updated 11 Jun 2010
Type Conference
Year 2006
Where ICMCS
Authors Do-Kyoung Kwon, Mei-Yin Shen, C. C. Jay Kuo
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