Detecting video formats
    32.
    发明授权
    Detecting video formats 有权
    检测视频格式

    公开(公告)号:US09148620B2

    公开(公告)日:2015-09-29

    申请号:US13083681

    申请日:2011-04-11

    CPC classification number: H04N7/0115

    Abstract: The format of telecined video may be determined including a bottom field first cadence. In addition, video using 2:3:3:2 top field first can be identified. Moreover, mixed cadence videos can also be detected. In some embodiments, mixed cadence videos may be detected by calculating variances of different areas within a frame.

    Abstract translation: 可以确定电视视频的格式,包括底场第一节奏。 另外,可以首先识别使用2:3:3:2顶场的视频。 此外,还可以检测到混合的节奏视频。 在一些实施例中,可以通过计算帧内不同区域的方差来检测混合节奏视频。

    In-Loop Adaptive Wiener Filter for Video Coding and Decoding
    40.
    发明申请
    In-Loop Adaptive Wiener Filter for Video Coding and Decoding 审中-公开
    用于视频编码和解码的环路自适应维纳滤波器

    公开(公告)号:US20140098866A1

    公开(公告)日:2014-04-10

    申请号:US14104028

    申请日:2013-12-12

    Abstract: A video encoder may use an adaptive Wiener filter inside the core video encoding loop to improve coding efficiency. In one embodiment, the Wiener filter may be on the input to a motion estimation unit and, in another embodiment, it may be on the output of a motion compensation unit. The taps for the Wiener filter may be determined based on characteristics of at least a region of pixel intensities within a picture. Thus, the filtering may be adaptive in that it varies based on the type of video being processed.

    Abstract translation: 视频编码器可以在核心视频编码环路内使用自适应维纳滤波器来提高编码效率。 在一个实施例中,维纳滤波器可以在运动估计单元的输入上,并且在另一个实施例中,其可以在运动补偿单元的输出上。 用于维纳滤波器的抽头可以基于图像内的像素强度的至少一个区域的特性来确定。 因此,滤波可以是适应性的,因为它根据正在处理的视频的类型而变化。

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