HYBRID INTER/INTRA PREDICTION IN VIDEO CODING SYSTEMS
    11.
    发明申请
    HYBRID INTER/INTRA PREDICTION IN VIDEO CODING SYSTEMS 审中-公开
    视频编码系统中的混合内部/内部预测

    公开(公告)号:US20130051467A1

    公开(公告)日:2013-02-28

    申请号:US13591637

    申请日:2012-08-22

    IPC分类号: H04N7/34

    摘要: Embodiments of the present invention provide techniques for efficiently coding/decoding video data during circumstances where no single coding mode is appropriate. A coder may predict content of an input pixel block according to a prediction technique for intra-coding and obtain a first predicted pixel block therefrom. The coder may predict content of the input pixel block according to a prediction technique for inter-coding and obtain a second predicted pixel block therefrom. The coder may average the first and second predicted pixel blocks by weighted averaging. The weight of the first predicted pixel block may be inversely proportional to the weight of the second predicted pixel block coding. The coder may predictively code the input pixel block based on a third predicted pixel block obtained by the averaging.

    摘要翻译: 本发明的实施例提供了在没有单个编码模式是适当的情况下有效地对视频数据进行编码/解码的技术。 编码器可以根据用于帧内编码的预测技术来预测输入像素块的内容,并从其获得第一预测像素块。 编码器可以根据用于帧间编码的预测技术来预测输入像素块的内容,并从其获得第二预测像素块。 编码器可以通过加权平均来平均第一和第二预测像素块。 第一预测像素块的权重可以与第二预测像素块编码的权重成反比。 编码器可以基于通过平均获得的第三预测像素块来预测性地对输入像素块进行编码。

    ADAPTIVE AUTO EXPOSURE ADJUSTMENT
    12.
    发明申请
    ADAPTIVE AUTO EXPOSURE ADJUSTMENT 有权
    自适应自动曝光调整

    公开(公告)号:US20130027581A1

    公开(公告)日:2013-01-31

    申请号:US13558309

    申请日:2012-07-25

    IPC分类号: H04N7/26 H04N5/235

    摘要: Techniques for adjusting exposure parameters of a camera such that video data captured by the camera may be coded efficiently. A camera with auto exposure control may capture and output frames of video. A pre-processor may estimate brightness of the frames of the video output from the camera. A controller may estimate a rate of brightness change among the frames, and when the rate of change is lower than a predetermined threshold, the controller may reduce sensitivity of the auto exposure control. A coding engine may predictively code the video.

    摘要翻译: 用于调整照相机的曝光参数的技术,使得由相机拍摄的视频数据可以被有效地编码。 具有自动曝光控制的照相机可以捕获和输出视频帧。 预处理器可以估计从相机输出的视频的帧的亮度。 控制器可以估计帧之间的亮度变化率,并且当变化率低于预定阈值时,控制器可以降低自动曝光控制的灵敏度。 编码引擎可以预测性地对视频进行编码。

    FRAME ENCODING SELECTION BASED ON FRAME SIMILARITIES AND VISUAL QUALITY AND INTERESTS
    13.
    发明申请
    FRAME ENCODING SELECTION BASED ON FRAME SIMILARITIES AND VISUAL QUALITY AND INTERESTS 有权
    基于框架相似性和视觉质量和兴趣的框架编码选择

    公开(公告)号:US20130003846A1

    公开(公告)日:2013-01-03

    申请号:US13443745

    申请日:2012-04-10

    IPC分类号: H04N7/28 H04N7/32 H04N7/26

    摘要: A system an method for determining to select frames from a video sequence that have high visual appeal and can be coded at high quality when frame rates of coded video drop to such low levels that perceptual sensations of moving video are lost. A metric is derived from a candidate input frame, and such metric is used to determine whether to increase or decrease a weight accorded to the candidate input frame. In an embodiment, the metric may be the auto- exposure data associated with the candidate input frame.

    摘要翻译: 一种用于确定从具有高视觉吸引力的视频序列中选择帧的方法,并且当编码视频的帧速率下降到移动视频的感知感觉丢失的低级别时,可以以高质量编码的方法。 从候选输入帧导出度量,并且使用这种度量来确定是否增加或减少符合候选输入帧的权重。 在一个实施例中,度量可以是与候选输入帧相关联的自动曝光数据。