A novel ρ-q/Distortion model for H.264 rate control algorithm
- Resource Type
- Conference
- Authors
- Ai, Mingjing; Zhao, Lili; Tan, Mingyang
- Source
- 2010 International Conference on Audio, Language and Image Processing Audio Language and Image Processing (ICALIP), 2010 International Conference on. :115-119 Nov, 2010
- Subject
- Signal Processing and Analysis
Computing and Processing
Communication, Networking and Broadcast Technologies
Bit rate
Quantization
Computational modeling
Encoding
Discrete cosine transforms
Adaptation model
Automatic voltage control
- Language
Rate control aims to maximize reconstructed video quality while adapting coding bit rate to the fluctuating network bandwidth. This paper proposes an easy rate control algorithm for H.264 video coding based on a novel ρ-q/Distortion model, whose data line shows quite a pleasing goodness-of-fit. Experimental results have demonstrated that, compared with rate control mechanism suggested in H.264 reference software, the proposed model provides a better reconstructed visual quality with a coding gain up to 0.37dB as well as much smaller bit rate control error with a maximum reduced bit rate up to 2.04kbps.