Low-delay rate control for real-time H.264/AVC video coding
IEEE Transactions on Multimedia
A new rate control scheme using quadratic rate distortion model
IEEE Transactions on Circuits and Systems for Video Technology
Scalable rate control for MPEG-4 video
IEEE Transactions on Circuits and Systems for Video Technology
Rate Control for H.264 Video With Enhanced Rate and Distortion Models
IEEE Transactions on Circuits and Systems for Video Technology
Hardware/Software Codesign of a Low-Cost Rate Control Scheme for H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
A Two-Stage Rate Control Mechanism for RDO-Based H.264/AVC Encoders
IEEE Transactions on Circuits and Systems for Video Technology
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Rate control plays a very important role in video coding. A low complexity macroblock (MB) layer rate control scheme for H.264 encoder is presented in this paper. Based on the analysis of the relationship among the quantization parameter (QP), mean absolute distortion (MAD) and the coded bits, a weighted-window model is proposed. A weighted-window based QP decision and MAD prediction model is proposed to reduce the computational complexity of MB-layer rate control. A new rate control scheme based on these models is presented in detail. The experimental results show that the proposed scheme gives a quality improvement of about 0.80dB on the average for all sequences, and about 58% reduction in bit rate mismatch.