公开(公告)号：US20120170652A1

公开(公告)日：2012-07-05

申请号：US13496052

申请日：2010-09-14

申请人： Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu ,  Joel Sole

发明人： Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu ,  Joel Sole

IPC分类号： H04N7/12

CPC分类号： H04N19/14 ,  H04N19/11 ,  H04N19/176 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61

摘要： Methods and apparatus are provided for efficient video encoding and decoding of intra prediction mode. An apparatus includes a video encoder for encoding picture data for at least a block in a picture by determining a spatial pattern for a decoded intra prediction mode residue used to reconstruct the picture at the video encoder. The decoded intra prediction mode residue is obtained by inverse quantizing and inverse transforming a transformed and quantized difference between an original version of the block and at least one reference block. The spatial pattern is used to determine an intra prediction mode for encoding the block.

摘要翻译： 提供了用于帧内预测模式的有效视频编码和解码的方法和装置。 一种装置包括一个视频编码器，用于通过确定用于在视频编码器处重构图像的解码帧内预测模式残差的空间模式来对图像中的至少一个块的图像数据进行编码。 通过对块的原始版本与至少一个参考块进行逆量化和逆变换变换和量化的差异来获得解码的帧内预测模式残差。 空间模式用于确定用于编码块的帧内预测模式。

公开(公告)号：US20120147948A1

公开(公告)日：2012-06-14

申请号：US13391368

申请日：2010-08-13

申请人： Joel Sole ,  Xiaoan Lu ,  Peng Yin ,  Qian Xu ,  Yunfei Zheng

发明人： Joel Sole ,  Xiaoan Lu ,  Peng Yin ,  Qian Xu ,  Yunfei Zheng

IPC分类号： H04N7/26

CPC分类号： H03M7/4006 ,  H04N19/13 ,  H04N19/136 ,  H04N19/157 ,  H04N19/42 ,  H04N19/517

摘要： Methods and apparatus are provided for explicit updates for symbol probabilities of an entropy encoder or decoder. An apparatus includes a video encoder having an entropy encoder for encoding symbols for picture data for at least a portion of a picture. An explicit update function is used to update probabilities of the symbols processed by the entropy encoder. The explicit update function at least one of is truncated at a threshold value and has a varying rate of adaptation.

摘要翻译： 提供了用于熵编码器或解码器的符号概率的显式更新的方法和装置。 一种装置包括具有熵编码器的视频编码器，用于对图像的至少一部分的图像数据进行编码符号。 显式更新功能用于更新由熵编码器处理的符号的概率。 显式更新功能中的至少一个在阈值处被截断且具有不同的适应速率。

公开(公告)号：US20120030219A1

公开(公告)日：2012-02-02

申请号：US13138860

申请日：2010-03-26

申请人： Qian Xu ,  Yunfei Zheng ,  Joel Sole ,  Peng Yin ,  Xiaoan Lu

发明人： Qian Xu ,  Yunfei Zheng ,  Joel Sole ,  Peng Yin ,  Xiaoan Lu

IPC分类号： G06F17/30

CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： There are provided method and apparatus for filter parameter determination and selection responsive to variable transforms in sparsity-based de-artifact filtering. An apparatus includes an encoder for encoding picture data for at least a portion of a picture. The encoder includes a sparsity-based de-artifact filter for performing sparsity-based de-artifact filtering on the portion. One or more filter parameters for the sparsity-based de-artifact filtering are determined and selected responsive to variable transforms.

摘要翻译： 提供了响应于基于稀疏度的去神器过滤中的可变变换的滤波器参数确定和选择的方法和装置。 一种装置包括：编码器，用于编码图像的至少一部分的图像数据。 编码器包括基于稀疏度的去伪造过滤器，用于在该部分上执行基于稀疏度的去伪造过滤。 响应于可变变换确定和选择用于基于稀疏度的去伪造过滤的一个或多个过滤器参数。

公开(公告)号：US20120002722A1

公开(公告)日：2012-01-05

申请号：US13138626

申请日：2010-03-10

申请人： Yunfei Zheng ,  Qian Xu ,  Joel Sole ,  Peng Yin ,  Xiaoan Lu

发明人： Yunfei Zheng ,  Qian Xu ,  Joel Sole ,  Peng Yin ,  Xiaoan Lu

IPC分类号： H04N7/26

CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/14 ,  H04N19/147 ,  H04N19/17 ,  H04N19/192 ,  H04N19/196 ,  H04N19/61 ,  H04N19/70

摘要： Methods and apparatus are provided for region-based filter parameter selection for de-artifact filtering. An apparatus includes an encoder for encoding picture data for at least a region of a picture. The encoder includes a de-artifact filter for performing de-artifact filtering on the region using region-based filter parameter selection. The region includes any of a non-block-boundary, a block boundary, a combination thereof, and the non-block-boundary to an exclusion of any block boundaries.

摘要翻译： 提供了用于去伪影过滤的基于区域的滤波器参数选择的方法和装置。 一种装置包括：编码器，用于编码图像的至少一个区域的图像数据。 编码器包括用于使用基于区域的滤波器参数选择在该区域上执行去伪影滤波的去伪影过滤器。 该区域包括任何​​非块边界，块边界，其组合，以及排除任何块边界的非块边界。

公开(公告)号：US20110286520A1

公开(公告)日：2011-11-24

申请号：US13138368

申请日：2010-02-05

申请人： Qian Xu ,  Joel Sole ,  Yunfei Zheng ,  Xiaoan Lu ,  Peng Yin

发明人： Qian Xu ,  Joel Sole ,  Yunfei Zheng ,  Xiaoan Lu ,  Peng Yin

IPC分类号： H04N7/32

CPC分类号： H04N19/70 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/61

摘要： Methods and apparatus are provided for implicit and semi-implicit intra mode signaling for video encoders and decoders. An apparatus includes an encoder for encoding picture data for at least a portion of a picture. The encoder derives an intra mode to apply to the portion from neighboring template data and abstains from explicitly signaling the intra mode for the portion. The neighboring template data corresponds to a neighboring template formed from neighboring pixels with respect to the portion.

摘要翻译： 为视频编码器和解码器提供隐式和半隐式帧内模式信令的方法和装置。 一种装置包括：编码器，用于编码图像的至少一部分的图像数据。 编码器导出帧内模式以应用于来自相邻模板数据的部分，并且对所述部分明确地发信号通知帧内模式。 相邻模板数据对应于相对于该部分由相邻像素形成的相邻模板。

公开(公告)号：US09793921B2

公开(公告)日：2017-10-17

申请号：US13696852

申请日：2011-05-11

申请人： Xiaoan Lu ,  Joel Sole ,  Peng Yin ,  Qian Xu ,  Yunfei Zheng

发明人： Xiaoan Lu ,  Joel Sole ,  Peng Yin ,  Qian Xu ,  Yunfei Zheng

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H03M7/40 ,  H04N19/13 ,  H04N19/18 ,  H04N19/64

CPC分类号： H03M7/4006 ,  H04N19/13 ,  H04N19/18 ,  H04N19/64

摘要： Methods and apparatus are provided for unified significance map coding. An apparatus includes a video encoder for encoding transform coefficients for at least a portion of a picture. The transform coefficients are obtained using a plurality of transforms. One or more context sharing maps are generated for the transform coefficients based on a unified rule. The one or more context sharing maps are for providing at least one context that is shared among at least some of the transform coefficients obtained from at least two different ones of the plurality of transforms.

公开(公告)号：US09736500B2

公开(公告)日：2017-08-15

申请号：US13382394

申请日：2010-07-01

申请人： Joel Sole ,  Xiaoan Lu ,  Yunfei Zheng ,  Peng Yin ,  Qian Xu

发明人： Joel Sole ,  Xiaoan Lu ,  Yunfei Zheng ,  Peng Yin ,  Qian Xu

IPC分类号： H04N19/12 ,  H04N19/86 ,  H04N19/176 ,  H04N19/46 ,  H04N19/122 ,  H04N19/61 ,  H04N19/33

CPC分类号： H04N19/86 ,  H04N19/12 ,  H04N19/122 ,  H04N19/176 ,  H04N19/33 ,  H04N19/46 ,  H04N19/61

摘要： Methods and apparatus are provided for spatially varying residue coding. An apparatus includes a video encoder (300) for encoding picture data for at least a block in a picture by selecting a spatially varying encoding method for a residue corresponding to a difference between an original version of the block and at least one reference block. One or more transforms are used to transform a portion of the block and a remaining area of the block is encoded using an alternate encoding method with respect to the one or more transforms or is not encoded.

公开(公告)号：US09681132B2

公开(公告)日：2017-06-13

申请号：US13988470

申请日：2011-11-22

申请人： Qian Chen ,  Yunfei Zheng ,  Peng Yin ,  Xiaoan Lu ,  Joel Sole

发明人： Qian Chen ,  Yunfei Zheng ,  Peng Yin ,  Xiaoan Lu ,  Joel Sole

IPC分类号： H04N7/12 ,  H04N19/86 ,  G06T5/00 ,  H04N19/51 ,  H04N19/82 ,  H04N19/42

CPC分类号： H04N19/86 ,  G06T5/002 ,  H04N19/439 ,  H04N19/51 ,  H04N19/82

摘要： Various implementations provide filtering for pictures. Several such implementations attempt to reduce artifacts caused by over-filtering in a decoding loop. Certain of these implementations provide multiple loop filters, and select a loop filter based on the result of a deblocking 5 filter. One particular implementation applies a first filter to a picture to produce a filtered picture. A second filter is selected based on a difference between a value of a particular pixel in the filtered picture and a value of a corresponding pixel in the picture. The second filter is applied to the particular pixel in the filtered picture. In another implementation, a signal or signal structure includes 10 an indication of the second filter, an encoding of at least a portion of a picture, and an encoding of at least a portion of a subsequent picture that has been encoded based on the output of the second filter above.

公开(公告)号：US09661336B2

公开(公告)日：2017-05-23

申请号：US13439006

申请日：2012-04-04

申请人： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu

发明人： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu

IPC分类号： H04N11/02 ,  H04N19/184 ,  H04N19/159 ,  H04N19/70 ,  H04N19/147 ,  H04N19/172 ,  H04N19/46 ,  H04N19/64 ,  H04N19/61 ,  H04N19/91

CPC分类号： H04N19/184 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/625 ,  H04N19/647 ,  H04N19/70 ,  H04N19/91

摘要： Methods and apparatus are provided for encoding and decoding binary sets using adaptive tree selection. In one exemplary encoding method embodiment, picture data is encoded for a block in a picture; in which one of a plurality of trees structures is selected to code a binary set of data for indicating coefficient significance for the block. In another exemplary encoding method embodiment, picture data is encoded for a block in a picture, in which one or more trees are used to encode a binary set of data for indicating coefficient significance for the block, the one or more trees each having a plurality of nodes, at least one of the nodes of the one or more trees being modified responsive to at least one parameter.

公开(公告)号：US09503743B2

公开(公告)日：2016-11-22

申请号：US13696847

申请日：2011-05-11

申请人： Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu ,  Joel Sole

发明人： Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu ,  Joel Sole

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/513 ,  H04N19/109

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/109 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/70

摘要： Methods and apparatus are provided for uni-prediction of self-derivation of motion estimation. An apparatus includes a video encoder for encoding at least a portion of a picture. The video encoder includes a self derivation motion estimator for performing self derivation motion estimation for the portion. The self derivation motion estimation is used for selectively performing uni-prediction or bi-prediction for the portion based on one or more criterion.

摘要翻译： 提供了用于单次预测运动估计的自推导的方法和装置。 一种装置包括用于对图像的至少一部分进行编码的视频编码器。 视频编码器包括用于对该部分进行自推导运动估计的自推导运动估计器。 自推导运动估计用于基于一个或多个准则选择性地对该部分执行单一预测或双预测。