期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2006

32

6

682-684

10.3321/j.issn:1007-1032.2006.06.030

湖南省科学技术厅项目(05JT1013)；

本校为第一机构

为满足基于Internet的实时视频流传输对网络带宽、时延和丢包率的要求,从流媒体协议、视频数据压缩及应用层QoS控制3个方面,对基于Internet的实时视频流传输问题进行了探讨.在基于多分辨率分析理论、小波变换特点及RTP/RTCP协议的基础上,服务端根据客户端对视频图像画质的不同要求(图像清晰度优先或图像流畅性优先),判别网络拥塞状况后自适应调整视频资料发送策略,从而实现基于Internet的实时视频流的动态QoS传输目的.

Due to bandwidth, delay, and loss requirements, transmission of real-time video over Internet still poses more challenges. Three areas of real-time video streaming over Internet： Protocols for streaming real-time video, Video compression and Application-layer QoS control were covered. A solution, based on the theory of Multi-Resolution Analysis, the properties of Wavelet Transform and the RTP/RTCP protocols for dynamic adjustment of QoS was put forward. In the solution, the raw video sequence was compressed into layered video, the quality adap...