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    • 111. 发明申请
    • HYBRID MOTION VECTOR CODING MODES FOR VIDEO CODING
    • 用于视频编码的混合运动矢量编码模式
    • US20130070855A1
    • 2013-03-21
    • US13614018
    • 2012-09-13
    • Yunfei ZhengXianglin WangMarta Karczewicz
    • Yunfei ZhengXianglin WangMarta Karczewicz
    • H04N7/32
    • H04N19/513H04N19/105H04N19/147H04N19/176H04N19/46H04N19/51H04N19/52
    • In one example, a device for coding video data includes a video coder (such as a video decoder or a video encoder) configured to code motion information for a current block of video data using a hybrid motion information coding mode, wherein to code the motion information, the video coder is configured to code a merge index syntax element of the motion information in a manner substantially conforming to a merge mode, and code at least one additional syntax element of the motion information in a manner substantially conforming to an advanced motion vector prediction (AMVP) mode, and wherein the video coder is configured to code the current block using the motion information. The hybrid mode may comprise a partial merge mode or a partial AMVP mode.
    • 在一个示例中,用于编码视频数据的设备包括被配置为使用混合运动信息编码模式对视频数据的当前块的运动信息进行编码的视频编码器(诸如视频解码器或视频编码器),其中对运动进行编码 信息,视频编码器被配置为以基本上符合合并模式的方式对运动信息的合并索引语法元素进行编码,并且以基本上符合高级运动矢量的方式对运动信息的至少一个附加语法元素进行编码 预测(AMVP)模式,并且其中视频编码器被配置为使用运动信息对当前块进行编码。 混合模式可以包括部分合并模式或部分AMVP模式。
    • 114. 发明申请
    • PIXEL LEVEL ADAPTIVE INTRA-SMOOTHING
    • 像素水平自适应平滑
    • US20120195378A1
    • 2012-08-02
    • US13267762
    • 2011-10-06
    • Yunfei ZhengMuhammed Zeyd CobanMarta Karczewicz
    • Yunfei ZhengMuhammed Zeyd CobanMarta Karczewicz
    • H04N7/32
    • H04N19/85H04N19/105H04N19/117H04N19/136H04N19/182H04N19/593H04N19/80
    • This disclosure describes intra-smoothing techniques for intra-coding of video data. In one example, a video encoder is configured to determine a plurality of prediction samples for intra-predictive coding of a block to be coded in a video frame, calculate a local statistic for a first prediction sample of the prediction samples, select a filter from a plurality of filters based on the local statistic, and apply the selected filter to the first prediction sample. The video encoder may also be configured to calculate at least one local statistic for each prediction sample of the prediction samples, select a filter from a plurality of different filters based on the at least one local statistic for each prediction sample, and apply each selected filter to the corresponding prediction sample to generate the filtered version of the prediction sample. Embodiments further include video decoders and method of decoding encoded video signals.
    • 本公开描述了用于视频数据的帧内编码的帧内平滑技术。 在一个示例中,视频编码器被配置为确定用于在视频帧中要编码的块的预测编码的多个预测样本,计算预测样本的第一预测样本的局部统计量,从 基于所述局部统计量的多个过滤器,并将所选择的过滤器应用于所述第一预测样本。 视频编码器还可以被配置为针对预测样本的每个预测样本计算至少一个局部统计量,基于每个预测样本的至少一个局部统计量从多个不同的滤波器中选择滤波器,并且应用每个选择的滤波器 到相应的预测样本以生成预测样本的滤波版本。 实施例还包括解码编码视频信号的视频解码器和方法。
    • 118. 发明授权
    • Intra smoothing filter for video coding
    • 内部平滑滤波器用于视频编码
    • US09008175B2
    • 2015-04-14
    • US13248968
    • 2011-09-29
    • Geert Van Der AuweraXianglin WangMuhammed Zeyd CobanMarta KarczewiczYunfei Zheng
    • Geert Van Der AuweraXianglin WangMuhammed Zeyd CobanMarta KarczewiczYunfei Zheng
    • H04N7/015H04N19/85H04N19/176H04N19/147H04N19/46H04N19/593H04N19/117H04N19/157H04N19/82
    • H04N19/85H04N19/117H04N19/147H04N19/157H04N19/176H04N19/46H04N19/593H04N19/82
    • This disclosure relates to techniques for reducing the amount of additional data encoded with a block encoded using intra-predictive coding. Particularly, the techniques provide apparatus and methods of applying a smoothing filter to prediction samples used in intra-predictive coding. For example, in fixed mode-dependent intra-predictive coding, a video encoder may determine the type of smoothing filter applied to prediction samples based on block size and intra-prediction mode combination associated with the current block, where the combination is used to look up a filter in a first filter table. In adaptive mode-dependent intra-predictive coding, the encoder uses two filters, one from the first filter table and another from a second filter table, applies both filters, and determines which yields better results. When the second filter table filter yields better results, the encoder encodes a filtering indication. When a filter from the first filter table is used, no filtering indication is encoded.
    • 本公开涉及用于减少使用内部预测编码编码的块编码的附加数据的量的技术。 特别地,这些技术提供了将平滑滤波器应用于在帧内预测编码中使用的预测样本的装置和方法。 例如,在固定模式相关的帧内预测编码中,视频编码器可以基于与当前块相关联的块大小和帧内预测模式组合来确定应用于预测样本的平滑滤波器的类型,其中组合被用于查找 在第一个过滤器表中添加一个过滤器。 在自适应模式相关的帧内预测编码中,编码器使用两个滤波器,一个来自第一个滤波器表,另一个来自第二个滤波器表,两个滤波器都应用两个滤波器,并确定哪个产生更好的结果。 当第二滤波器表滤波器产生更好的结果时,编码器对滤波指示进行编码。 当使用来自第一滤波器表的滤波器时,不对滤波指示进行编码。