-
21.发明申请公开(公告)号：US20130083853A1
公开(公告)日：2013-04-04
申请号：US13532392
申请日：2012-06-25
IPC分类号： H04N7/32
CPC分类号： H04N19/55 , H04N19/51 , H04N19/52 , H04N19/563
摘要： This disclosure describes techniques for coding a video block based on an unclipped version of a motion vector predictor candidate. The techniques include determining a motion vector predictor candidate list including motion vector predictor candidates from neighboring video blocks without clipping the motion vector predictor candidates. More specifically, if one of the motion vector predictor candidates points to a prediction block located outside of a reference picture boundary relative to the current video block, the techniques allow an unclipped version of the motion vector predictor candidate to be included in the candidate list. The current video block is then coded based on a determined unclipped motion vector predictor candidate of the candidate list. Elimination of the motion vector predictor candidate clipping process reduces complexity at both the video encoder and the video decoder.
摘要翻译： 本公开描述了基于运动矢量预测器候选的未剪切版本对视频块进行编码的技术。 这些技术包括：确定包括来自相邻视频块的运动矢量预测器候选的运动矢量预测器候选列表，而不限制运动矢量预测器候选。 更具体地，如果运动矢量预测器候选中的一个指向相对于当前视频块的参考图像边界外部的预测块，则该技术允许运动矢量预测器候选的未剪切版本被包括在候选列表中。 然后基于候选列表的确定的未剪切的运动矢量预测器候选来对当前视频块进行编码。 消除运动矢量预测器候选削波处理降低了视频编码器和视频解码器的复杂度。
-
公开(公告)号：US20120195378A1
公开(公告)日：2012-08-02
申请号：US13267762
申请日：2011-10-06
IPC分类号： H04N7/32
CPC分类号： H04N19/85 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/182 , H04N19/593 , H04N19/80
摘要： 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.
摘要翻译： 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。
-
23.发明申请USING A MOST PROBABLE SCANNING ORDER TO EFFICIENTLY CODE SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING 审中-公开使用最可能的扫描命令有效地为视频编码中的视频块进行扫描订单信息公开(公告)号：US20120163456A1
公开(公告)日：2012-06-28
申请号：US13332054
申请日：2011-12-20
IPC分类号： H04N7/32
CPC分类号： H04N19/157 , H04N19/129 , H04N19/13 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/70
摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, the apparatus comprising a video coder configured to code information that identifies a scanning order associated with the block, wherein to code the information that identifies the scanning order associated with the block, the video coder is configured to determine a most probable scanning order for the block, and code an indication of whether the scanning order associated with the block is the most probable scanning order. In another example, to code the information that identifies the scanning order associated with the block, the video coder is further configured to, in the event the scanning order associated with the block is not the most probable scanning order, code an indication of the scanning order associated with the block.
摘要翻译： 在一个示例中，公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，该装置包括视频编码器，该视频编码器被配置为对与块相关联的扫描顺序进行编码的信息，其中， 识别与块相关联的扫描顺序，视频编码器被配置为确定块的最可能的扫描顺序，并且编码与块相关联的扫描顺序是否是最可能的扫描顺序的指示。 在另一示例中，为了对识别与该块相关联的扫描顺序的信息进行编码，视频编码器还被配置为在与该块相关联的扫描顺序不是最可能的扫描顺序的情况下，编码扫描的指示 与块相关联的顺序。
-
公开(公告)号：US20120163455A1
公开(公告)日：2012-06-28
申请号：US13179321
申请日：2011-07-08
IPC分类号： H04N7/32
CPC分类号： H04N19/157 , H04N19/129 , H04N19/134 , H04N19/146 , H04N19/176 , H04N19/196 , H04N19/46
摘要： This disclosure describes apparatuses and methods of encoding coefficients associated with a block of video data. In one example, a method may comprise selecting a scan order for the coefficients based on an intra coding mode used to predict the block of video data and a transform block size used in transforming the block of video data, and generating a syntax element to communicate the selected scan order for the block of video data.
摘要翻译： 本公开描述了与视频数据块相关联的编码系数的装置和方法。 在一个示例中，方法可以包括基于用于预测视频数据块的帧内编码模式和用于变换视频数据块的变换块大小，选择用于系数的扫描顺序，以及生成用于通信的语法元素 所选择的视频数据块的扫描顺序。
-
公开(公告)号：US20120121011A1
公开(公告)日：2012-05-17
申请号：US13294869
申请日：2011-11-11
IPC分类号： H04N7/30
CPC分类号： H04N19/436 , H04N19/102 , H04N19/129 , H04N19/13 , H04N19/134 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
摘要： In one example, a method for coding video data includes identifying a scan path for scanning significance information associated with a quantized transform coefficient. The method also includes determining a context support neighborhood for entropy coding the significance information associated with the quantized transform coefficient, wherein the context support neighborhood excludes one or more context support elements that are located in the scan path. The method also includes coding the significance information using the modified context support neighborhood.
摘要翻译： 在一个示例中，用于编码视频数据的方法包括识别用于扫描与量化变换系数相关联的有效信息的扫描路径。 该方法还包括确定用于熵编码与量化变换系数相关联的重要性信息的上下文支持邻域，其中上下文支持邻域排除位于扫描路径中的一个或多个上下文支持元素。 该方法还包括使用修改的上下文支持邻域对重要性信息进行编码。
-
26.发明授权公开(公告)号：US09288496B2
公开(公告)日：2016-03-15
申请号：US13237412
申请日：2011-09-20
IPC分类号： H04N7/12 , H04N19/14 , H04N19/196 , H04N19/176 , H04N19/129
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/196 , H04N19/197
摘要： Video coding devices and methods use a function-based definition of scan order to scan transform coefficients associated with a block of residual video data. A video coder may define a scan order for coefficients based on a predefined function and one or more parameter values. A video encoder may use a function-based scan order to scan a two-dimensional array of coefficients to produce a one-dimensional array of coefficients for use in producing encoded video data. The video encoder may signal the parameters to a video decoder, or the video decoder may infer one or more of the parameters. The video decoder may use the function-based scan order to scan a one-dimensional array of coefficients to reproduce the two-dimensional array of coefficients for use in producing decoded video data. In each case, the scan order may vary according to the parameter values, which may include block size, orientation, and/or orientation strength.
摘要翻译： 视频编码设备和方法使用扫描顺序的基于功能的定义来扫描与一组残留视频数据相关联的变换系数。 视频编码器可以基于预定义的功能和一个或多个参数值来定义系数的扫描顺序。 视频编码器可以使用基于功能的扫描顺序来扫描系数的二维阵列以产生用于产生编码视频数据的一维系数阵列。 视频编码器可以将参数发送给视频解码器，或者视频解码器可以推断一个或多个参数。 视频解码器可以使用基于功能的扫描顺序来扫描系数的一维阵列，以再现用于产生解码视频数据的二维系数阵列。 在每种情况下，扫描顺序可以根据可能包括块大小，取向和/或取向强度的参数值而变化。
-
27.发明申请CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT OF A VIDEO BLOCK IN VIDEO CODING 审中-公开编码视频编码中视频块的最新重要系数的位置公开(公告)号：US20120163448A1
公开(公告)日：2012-06-28
申请号：US13328949
申请日：2011-12-16
IPC分类号： H04N7/26
CPC分类号： H04N19/00 , H03M7/4018 , H04N19/61
摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code information that identifies a position of a last non-zero coefficient within the block according to a scanning order associated with the block, wherein to code the information, the video coder is configured to perform a context adaptive entropy coding process that includes the video coder applying a context model based on at least three contexts, wherein the at least three contexts include a size associated with the block, a position of a given one of the coefficients within the block according to the scanning order, and the scanning order.
摘要翻译： 在一个示例中，公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，其中该装置包括视频编码器，该视频编码器被配置为对该块内的最后一个非零系数的位置进行编码的信息， 与所述块相关联的扫描顺序，其中为了对所述信息进行编码，所述视频编码器被配置为执行上下文自适应熵编码处理，所述上下文自适应熵编码处理包括基于至少三个上下文应用上下文模型的视频编码器，其中所述至少三个上下文 包括与块相关联的大小，根据扫描顺序的块内的给定一个系数的位置和扫描顺序。
-
28.发明申请公开(公告)号：US20120140822A1
公开(公告)日：2012-06-07
申请号：US13237412
申请日：2011-09-20
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/196 , H04N19/197
摘要： Video coding devices and methods use a function-based definition of scan order to scan transform coefficients associated with a block of residual video data. A video coder may define a scan order for coefficients based on a predefined function and one or more parameter values. A video encoder may use a function-based scan order to scan a two-dimensional array of coefficients to produce a one-dimensional array of coefficients for use in producing encoded video data. The video encoder may signal the parameters to a video decoder, or the video decoder may infer one or more of the parameters. The video decoder may use the function-based scan order to scan a one-dimensional array of coefficients to reproduce the two-dimensional array of coefficients for use in producing decoded video data. In each case, the scan order may vary according to the parameter values, which may include block size, orientation, and/or orientation strength.
摘要翻译： 视频编码设备和方法使用扫描顺序的基于功能的定义来扫描与一组残留视频数据相关联的变换系数。 视频编码器可以基于预定义的功能和一个或多个参数值来定义系数的扫描顺序。 视频编码器可以使用基于功能的扫描顺序来扫描系数的二维阵列以产生用于产生编码视频数据的一维系数阵列。 视频编码器可以将参数发送给视频解码器，或者视频解码器可以推断一个或多个参数。 视频解码器可以使用基于功能的扫描顺序来扫描系数的一维阵列，以再现用于产生解码视频数据的二维系数阵列。 在每种情况下，扫描顺序可以根据可能包括块大小，取向和/或取向强度的参数值而变化。
-
公开(公告)号：US20120099646A1
公开(公告)日：2012-04-26
申请号：US13275128
申请日：2011-10-17
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In an example, an apparatus for decoding video data includes a video decoder that is configured to determine a number of transform coefficients associated with a block of video data, and to determine whether the number of transform coefficients exceeds a predetermined threshold. The video decoder is also configured to identify a scan order when the number of transform coefficients exceeds the predetermined threshold, wherein the scan order indicates an order in which the transform coefficients have been serialized from a two-dimensional array to a one-dimensional array, and to apply the scan order to inverse scan the number of transform coefficients associated with a block of video data.
摘要翻译： 在一个示例中，用于解码视频数据的装置包括视频解码器，其被配置为确定与视频数据块相关联的变换系数的数量，并且确定变换系数的数量是否超过预定阈值。 视频解码器还被配置为当变换系数的数量超过预定阈值时识别扫描顺序，其中扫描顺序指示变换系数已经从二维阵列串行化为一维阵列的顺序， 并且应用扫描顺序对与视频数据块相关联的变换系数的数量进行逆扫描。
-
公开(公告)号：US09215473B2
公开(公告)日：2015-12-15
申请号：US13357386
申请日：2012-01-24
IPC分类号： H04N19/436 , H04N19/196 , H04N19/70 , H04N19/13 , H04N19/96 , H04N19/174
CPC分类号： H04N19/436 , H04N19/13 , H04N19/174 , H04N19/197 , H04N19/70 , H04N19/96
摘要： A video encoder partitions a slice of a picture into a plurality of sub-slices. When the video encoder encodes the slice, the video encoder generates a coded slice that includes coded sub-slices that correspond to the sub-slices. Each of the sub-slices can be parsed independently of each other one of the sub-slices and can be reconstructed independently of each other one of the sub-slices. Accordingly, a video decoder may parse two or more of the sub-slices in parallel and decode two or more of the sub-slices in parallel.
摘要翻译： 视频编码器将图片的片分割成多个子片。 当视频编码器对切片进行编码时，视频编码器生成包括对应于子切片的编码子切片的编码切片。 每个子片段可以彼此独立地解析子片之一，并且可以彼此独立地重建子片之一。 因此，视频解码器可以并行地解析两个或更多个子片段，并且并行地解码两个或更多个子片段。
-
-
-
-
-
-
-
-
-
搜索结果
42 条记录 (耗时 0.025 秒)
