摘要： 针对可扩展视频编码在无线网络中的自适应传输问题，提出一种基于概率估计的分层视频传输算法。通过分析前一帧的实际传输速率，预测后一帧可能的传输速率，从而选择合适的层进行传输，以达到在有效利用网络带宽的同时减少丢帧的目的。仿真结果表明，该算法能保证传输视频具有较高的图像质量和较低的丢帧率。

关键词: 可扩展视频编码, 无线网络, 概率估计, 分层视频传输, 滑动窗口, 丢帧率

Abstract: Aiming at the adaptive transmission problem of video coding in wireless network, a layered video transmission algorithm based on probability estimation is proposed. It predicts the possible transmission rate of next frames by analyzing the actual transmission rate of previous frames, selects the appropriate layer for transmission so as to reduce the frame loss rate with efficient use of network bandwidth. Simulation results demonstrate that the algorithm can ensure the video transmitted a high quality and a low frame loss rate.

Key words: Scalable Video Coding(SVC), wireless network, probability estimation, layered video transmission, slide window, frame loss rate

中图分类号: 

• TP37