ENHANCED REFERENCE REGION UTILIZATION FOR SCALABLE VIDEO CODING
    13.
    发明申请
    ENHANCED REFERENCE REGION UTILIZATION FOR SCALABLE VIDEO CODING 有权
    用于可扩展视频编码的增强参考区域利用

    公开(公告)号:US20140286409A1

    公开(公告)日:2014-09-25

    申请号:US13997935

    申请日:2012-12-28

    IPC分类号: H04N19/61 H04N19/91 H04N19/82

    摘要: Techniques to identify one or more candidate reference blocks used to generate a prediction block to encode a current coding block. The candidate reference blocks can be in the same layer as the current coding block or a different layer. In addition, the candidate reference blocks do not have to be co-located with the current coding block. Motion vectors and shift vectors can be used to identify the one or more candidate reference blocks. In addition, uniform and non-uniform weighting can be applied to the one or more candidate reference blocks to generate the prediction block. Accordingly, an encoder can determine and identify reference blocks to a decoder that can provide desirable rate-distortion cost.

    摘要翻译: 用于识别用于生成预测块以编码当前编码块的一个或多个候选参考块的技术。 候选参考块可以与当前编码块或不同层位于相同的层中。 此外,候选参考块不必与当前编码块共同定位。 运动矢量和移位矢量可用于识别一个或多个候选参考块。 此外,可以对一个或多个候选参考块应用均匀和不均匀的加权以生成预测块。 因此,编码器可以确定并识别能够提供所需速率失真成本的解码器的参考块。

    SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR SCALABLE VIDEO CODING BASED ON COEFFICIENT SAMPLING
    15.
    发明申请
    SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR SCALABLE VIDEO CODING BASED ON COEFFICIENT SAMPLING 有权
    基于系数采样的可扩展视频编码的系统,方法和计算机程序产品

    公开(公告)号:US20140140410A1

    公开(公告)日:2014-05-22

    申请号:US13995182

    申请日:2012-06-29

    IPC分类号: H04N19/30

    CPC分类号: H04N19/63 H04N19/30

    摘要: Methods, systems, and computer program products for the generation of multiple layers of scaled encoded video data compatible with the HEVC standard. Residue from prediction processing may be transformed into coefficients in the frequency domain. The coefficients may then be sampled to create a layer of encoded data. The coefficients may be sampled in different ways to create multiple respective layers. The layers may then be multiplexed and sent to a decoder. There, one or more of the layers may be chosen. The choice of certain layer(s) may be dependent on the desired attributes of the resulting video. A certain level of video quality, frame rate, resolution, and/or bit depth may be desired, for example. The coefficients in the chosen layers may then be assembled to create a version of the residue to be used in video decoding.

    摘要翻译: 用于生成与HEVC标准兼容的多层缩放编码视频数据的方法,系统和计算机程序产品。 可以将来自预测处理的残差变换为频域中的系数。 然后可以对系数进行采样以创建编码数据层。 可以以不同的方式对系数进行采样以创建多个相应的层。 然后可以将这些层复用并发送到解码器。 在那里,可以选择一个或多个层。 某些层的选择可以取决于所得到的视频的期望属性。 例如,可能需要某种级别的视频质量,帧速率,分辨率和/或比特深度。 然后可以组合所选择的层中的系数以创建要在视频解码中使用的残余的版本。

    In-loop adaptive wiener filter for video coding and decoding
    18.
    发明授权
    In-loop adaptive wiener filter for video coding and decoding 有权
    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:US08195001B2

    公开(公告)日:2012-06-05

    申请号:US12082182

    申请日:2008-04-09

    申请人: Yi-Jen Chiu Lidong Xu

    发明人: Yi-Jen Chiu Lidong Xu

    IPC分类号: G06K9/40

    摘要: 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.

    摘要翻译: 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。

    In-loop adaptive wiener filter for video coding and decoding
    20.
    发明申请
    In-loop adaptive wiener filter for video coding and decoding 有权
    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:US20090257670A1

    公开(公告)日:2009-10-15

    申请号:US12082182

    申请日:2008-04-09

    申请人: Yi-Jen Chiu Lidong Xu

    发明人: Yi-Jen Chiu Lidong Xu

    IPC分类号: H04N7/24

    摘要: 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.

    摘要翻译: 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。