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基于对比敏感度的DASH客户端码率选择算法研究

张新有 王元勋 邢焕来 王红刚

张新有, 王元勋, 邢焕来, 王红刚. 基于对比敏感度的DASH客户端码率选择算法研究[J]. 电子与信息学报, 2016, 38(11): 2826-2831. doi: 10.11999/JEIT160150
引用本文: 张新有, 王元勋, 邢焕来, 王红刚. 基于对比敏感度的DASH客户端码率选择算法研究[J]. 电子与信息学报, 2016, 38(11): 2826-2831. doi: 10.11999/JEIT160150
ZHANG Xinyou, WANG Yuanxun, XING Huanlai, WANG Honggang. Rate Selection Algorithm of DASH Client Based on Contrast Sensitivity[J]. Journal of Electronics & Information Technology, 2016, 38(11): 2826-2831. doi: 10.11999/JEIT160150
Citation: ZHANG Xinyou, WANG Yuanxun, XING Huanlai, WANG Honggang. Rate Selection Algorithm of DASH Client Based on Contrast Sensitivity[J]. Journal of Electronics & Information Technology, 2016, 38(11): 2826-2831. doi: 10.11999/JEIT160150

基于对比敏感度的DASH客户端码率选择算法研究

doi: 10.11999/JEIT160150
基金项目: 

国家自然科学基金(61401374)

Rate Selection Algorithm of DASH Client Based on Contrast Sensitivity

Funds: 

The National Natural Science Foundation of China (61401374)

  • 摘要: 基于带宽估算的码率选择算法具有带宽利用率高的优点,但是同时也存在容易受网络波动影响造成计算出的目标码率出现瞬时峰值而造成带宽浪费的问题。针对于此,该文提出一种基于人眼对比敏感度特征的码率选择算法,在客户端利用人眼对比敏感度模型计算当前观看条件下人眼截止空间频率,选择服务器中和截止空间频率差的绝对值最小视频分片对应的码率作为目标码率。和基于带宽估算选择目标码率的方法进行对比实验,测试二者在不同视角内计算的目标码率,得到两者的码率计算结果阶梯图。实验结果表明,在视角为5到15情况下,所提方法较带宽估计方法在确保视频效果前提下能够有效节约带宽。
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出版历程
  • 收稿日期:  2016-02-02
  • 修回日期:  2016-07-29
  • 刊出日期:  2016-11-19

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