SCALABLE VIDEO ENCODING RATE ADAPTATION BASED ON PERCEIVED QUALITY
    1.
    发明申请
    SCALABLE VIDEO ENCODING RATE ADAPTATION BASED ON PERCEIVED QUALITY 有权
    可扩展视频编码速率适应性基于令人满意的质量

    公开(公告)号:US20150281709A1

    公开(公告)日:2015-10-01

    申请号:US14227729

    申请日:2014-03-27

    IPC分类号: H04N19/37 H04N19/463

    摘要: Multi-layered video structures are scaled over a range of perceived quality levels. An estimated Mean Opinion Score (eMOS)-based encoder control loop is utilized to determine one or more encoder key performance index (KPI) associated with a particular perceived quality level. A KPI-based encoder control loop is then utilized to guide generation of a hierarchical structure having quality and/or temporal and/or spatial enhancement layers, without recalculating eMOS for the scalable structure. In addition, eMOS is used to guide the generation of a hierarchical structure at best-perceived quality levels for a given bitrate budget. Rate adaptation may occur by dropping segments, changing hierarchical structure, or changing the KPI target values. With the structure scaled as a function of perceived quality, perceived quality is impacted predictably as the encoding rate is adapted.

    摘要翻译: 多层视频结构在一系列感知质量水平上缩放。 使用基于平均意见得分(eMOS)的编码器控制环来确定与特定感知质量水平相关联的一个或多个编码器关键性能指标(KPI)。 然后,基于KPI的编码器控制环路用于指导具有质量和/或时间和/或空间增强层的层次结构的生成,而不重新计算用于可伸缩结构的eMOS。 此外,eMOS用于指定给定比特率预算的最佳感知质量水平的层次结构生成。 速率调整可以通过丢弃段,改变层次结构或改变KPI目标值而发生。 随着结构作为感知质量的函数而变化,随着编码率的改变,感知质量受到可预测的影响。

    Scalable video encoding rate adaptation based on perceived quality
    2.
    发明授权
    Scalable video encoding rate adaptation based on perceived quality 有权
    基于感知质量的可扩展视频编码速率适应

    公开(公告)号:US09591316B2

    公开(公告)日:2017-03-07

    申请号:US14227729

    申请日:2014-03-27

    摘要: Multi-layered video structures are scaled over a range of perceived quality levels. An estimated Mean Opinion Score (eMOS)-based encoder control loop is utilized to determine one or more encoder key performance index (KPI) associated with a particular perceived quality level. A KPI-based encoder control loop is then utilized to guide generation of a hierarchical structure having quality and/or temporal and/or spatial enhancement layers, without recalculating eMOS for the scalable structure. In addition, eMOS is used to guide the generation of a hierarchical structure at best-perceived quality levels for a given bitrate budget. Rate adaptation may occur by dropping segments, changing hierarchical structure, or changing the KPI target values. With the structure scaled as a function of perceived quality, perceived quality is impacted predictably as the encoding rate is adapted.

    摘要翻译: 多层视频结构在一系列感知质量水平上缩放。 使用基于平均意见得分(eMOS)的编码器控制环来确定与特定感知质量水平相关联的一个或多个编码器关键性能指标(KPI)。 然后,基于KPI的编码器控制环路用于指导具有质量和/或时间和/或空间增强层的层次结构的生成,而不重新计算用于可伸缩结构的eMOS。 此外,eMOS用于指定给定比特率预算的最佳感知质量水平的层次结构生成。 速率调整可以通过丢弃段,改变层次结构或改变KPI目标值而发生。 随着结构作为感知质量的函数而变化,随着编码率的改变,感知质量受到可预测的影响。