摘要
码率控制算法的性能直接影响视频通信的质量。根据小波视频编码器的特点，提出了一种基于率失真的码率控制算法，给出了I帧根据缓冲器的容量分配固定的比特数的策略；提出了基于率失真的P帧的码率分配策略，实验效果验证了所提出算法的有效性。
The performance of rate control algorithm significantly affects the quality of video communication. According to the characteristics of wavelet video encoder, propose a rate-distortion-based rate control algorithm. The aLlocation strategy is on the basis of buffer capacity for intra frame which is allocated fixed bits, and based on rate-distortion for inter frame. Simulation results show the proposed algorithm is effective.
作者
毕迎春
孟欠欠
BI Ying-chun, MENG Qian-qian （Wan Nan Medical College Wuhu 241000, China）
出处
《电脑知识与技术》
2011年第12期8897-8898,共2页
Computer Knowledge and Technology
基金
皖南医学院中青年科研基金项目（WK201025）
关键词
率失真
码率控制
缓冲器
rate-distortion
rate control
buffer
