公开(公告)号：US20130083856A1

公开(公告)日：2013-04-04

申请号：US13535975

申请日：2012-06-28

Applicant: Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

Inventor： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/91 ,  H04N19/61

Abstract: This disclosure describes techniques for coding video data. In particular, this disclosure describes techniques for entropy coding of residual transform coefficients generated by a video coding process. In one example, a method selects a bin 2 context for coding a bin 2 level of one or more transform coefficients in the vector according to the entropy coding process. The method further codes the bin 2 level of one or more transform coefficients in the vector according to the selected bin 2 context. Selecting the bin 2 context comprises selecting the bin 2 context for a current transform coefficient in the vector based on the bin 2 level of one or more previously coded transform coefficients in the vector.

Abstract translation: 本公开描述了用于编码视频数据的技术。 特别地，本公开描述了由视频编码处理生成的残差变换系数的熵编码技术。 在一个示例中，方法根据熵编码处理选择用于编码向量中的一个或多个变换系数的bin 2级的bin 2上下文。 该方法还根据所选择的bin 2上下文对向量中的一个或多个变换系数的bin 2级进行编码。 选择bin 2上下文包括基于向量中的一个或多个先前编码的变换系数的bin 2级别来选择向量中的当前变换系数的bin 2上下文。

公开(公告)号：US20130083853A1

公开(公告)日：2013-04-04

申请号：US13532392

申请日：2012-06-25

Applicant: Muhammed Zeyd Coban ,  Marta Karczewicz

Inventor： Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N7/32

CPC classification number: H04N19/55 ,  H04N19/51 ,  H04N19/52 ,  H04N19/563

Abstract: 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.

Abstract translation: 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：US08411746B2

公开(公告)日：2013-04-02

申请号：US12709186

申请日：2010-02-19

Applicant: Ying Chen ,  Marta Karczewicz

Inventor： Ying Chen ,  Marta Karczewicz

IPC: H04N7/12

CPC classification number: H04N21/234327 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N21/2362 ,  H04N21/4345 ,  H04N21/8451

Abstract: A multiplexer may produce an MPEG-2 (Motion Picture Experts Group) System standard bitstream comprising views with nonconsecutive view order indexes. In one example, an apparatus includes a video encoder that encodes views of a scene, and a multiplexer that constructs a data structure for signaling that a corresponding MPEG-2 (Motion Picture Experts Group) System standard bitstream includes a first view of the views of the scene associated with a first view order index and a second view of the plurality of views of the scene associated with a second view order index. The first view order index and the second view order index are non-consecutive. The apparatus may further include an output interface that outputs the data structure.

Abstract translation: 复用器可以产生包含具有非连续视图顺序索引的视图的MPEG-2（运动图像专家组）系统标准比特流。 在一个示例中，一种装置包括编码场景视图的视频编码器和构造数据结构的多路复用器，用于发信号通知对应的MPEG-2（运动图像专家组）系统标准比特流包括第 与第一视图顺序索引相关联的场景和与第二视图顺序索引相关联的场景的多个视图的第二视图。 第一视图顺序索引和第二视图顺序索引是不连续的。 该装置还可以包括输出数据结构的输出接口。

公开(公告)号：US20130070855A1

公开(公告)日：2013-03-21

申请号：US13614018

申请日：2012-09-13

Applicant: Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

Inventor： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/32

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/52

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130070854A1

公开(公告)日：2013-03-21

申请号：US13585423

申请日：2012-08-14

Applicant: Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

Inventor： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N7/34

CPC classification number: H04N19/436 ,  H04N19/52

Abstract: For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.

Abstract translation: 对于属于编码单元（CU）的每个预测单元（PU），视频编码器生成候选列表。 视频编码器生成候选列表，使得在不使用属于CU的任何PU的运动信息的情况下生成基于至少一个其他PU的运动信息生成的候选列表中的每个候选。 在生成PU的候选列表之后，视频编码器基于由PU的运动信息指示的一个或多个参考块来生成PU的预测视频块。 PU的运动信息可以基于PU的候选列表中由选择的候选者指示的运动信息来确定。

公开(公告)号：US20130070848A1

公开(公告)日：2013-03-21

申请号：US13613382

申请日：2012-09-13

Applicant: Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

Inventor： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

IPC: H04N7/32

CPC classification number: H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/91

Abstract: A video coder, such as a video encoder or a video decoder, identifies an entropy coding context in a set of one or more entropy coding contexts. The video coder identifies the entropy coding context without reference to a neighboring coding unit that is above a current coding unit in a current picture. The video coder then entropy codes a short distance intra-prediction (SDIP) syntax element of a coding unit (CU) using the identified entropy coding context. The SDIP syntax element at least partially defines a mode by which the CU is partitioned into a set of one or more transform units.

Abstract translation: 诸如视频编码器或视频解码器的视频编码器识别一组或多个熵编码上下文中的熵编码上下文。 视频编码器不参照当前图像中当前编码单元之上的相邻编码单元来识别熵编码上下文。 视频编码器然后使用所识别的熵编码上下文对编码单元（CU）的短距离帧内预测（SDIP）语法元素进行熵编码。 SDIP语法元素至少部分地定义了CU被分割成一组一个或多个变换单元的模式。

公开(公告)号：US20130044809A1

公开(公告)日：2013-02-21

申请号：US13585657

申请日：2012-08-14

Applicant: In Suk Chong ,  Geert Van der Auwera ,  Marta Karczewicz

Inventor： In Suk Chong ,  Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N7/30

CPC classification number: H04N19/649 ,  H04N19/117 ,  H04N19/167 ,  H04N19/182 ,  H04N19/42 ,  H04N19/60 ,  H04N19/647 ,  H04N19/82 ,  H04N19/85 ,  H04N19/86 ,  H04N19/96

Abstract: In general, techniques are described for applying partition-based filters when coding video data. A device comprising at least one processor may be configured to implement the techniques. The processor selects a filter to apply near a boundary of a first portion of the video data and determines at least one of the plurality of filter coefficients of the selected filter for which the video data will not be available to be filtered. Based on the determination, the processor determines a partial filter that does not include the at least one of the plurality of filter coefficients for which the video data will not be available to be filtered. The processor renormalizes the plurality of filter coefficients included within the partial filter and applies the renormalized partial filter near the boundary of the first portion of the video data to generate a filtered first portion of the video data.

Abstract translation: 一般来说，描述了在编码视频数据时应用基于分区的滤波器的技术。 包括至少一个处理器的设备可以被配置为实现这些技术。 处理器选择滤波器以在视频数据的第一部分的边界附近应用，并且确定所选择的滤波器的多个滤波器系数中的至少一个，视频数据将不可用于其被滤波。 基于该确定，处理器确定不包括视频数据将不能被滤波的多个滤波器系数中的至少一个的部分滤波器。 处理器对包括在部分滤波器内的多个滤波器系数进行重新归一化，并且在视频数据的第一部分的边界附近应用重新归一化的部分滤波器，以生成经过滤波的视频数据的第一部分。

公开(公告)号：US20130034170A1

公开(公告)日：2013-02-07

申请号：US13561754

申请日：2012-07-30

Applicant: Ying Chen ,  Marta Karczewicz ,  Ye-Kui Wang

Inventor： Ying Chen ,  Marta Karczewicz ,  Ye-Kui Wang

IPC: H04N7/26

CPC classification number: H04N19/40 ,  H04N13/00 ,  H04N13/161 ,  H04N19/186 ,  H04N19/37 ,  H04N19/39 ,  H04N19/70 ,  H04N21/2343 ,  H04N21/234309 ,  H04N21/234354 ,  H04N21/234363 ,  H04N21/234381 ,  H04N21/23439

Abstract: In one example, a device for coding video data includes a video coder configured to code, for a bitstream, information representative of which of a plurality of video coding dimensions are enabled for the bitstream, and code values for each of the enabled video coding dimensions, without coding values for the video coding dimensions that are not enabled, in a network abstraction layer (NAL) unit header of a NAL unit comprising video data coded according to the values for each of the enabled video coding dimensions. In this manner, NAL unit headers may have variable lengths, while still providing information for scalable dimensions to which the NAL units correspond.

Abstract translation: 在一个示例中，用于对视频数据进行编码的设备包括：视频编码器，被配置为针对比特流编码表示多个视频编码维度中的哪一个为比特流启用的信息，以及为每个启用的视频编码维度 ，不包括在NAL单元的网络抽象层（NAL）单元头中包含未启用的视频编码维度的编码值，该NAL单元包括根据每个启用视频编码维度的值编码的视频数据。 以这种方式，NAL单元头部可以具有可变长度，同时仍然提供用于NAL单元对应的可缩放尺寸的信息。

公开(公告)号：US20130022104A1

公开(公告)日：2013-01-24

申请号：US13548742

申请日：2012-07-13

Applicant: Ying Chen ,  In Suk Chong ,  Marta Karczewicz

Inventor： Ying Chen ,  In Suk Chong ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/174 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: In one example, a video decoder is configured to store an adaptation parameter set (APS) data structure in a buffer of a coding device, wherein the APS data structure includes signaling data applicable to one or more slices of video data, decode at least one of the slices based on the signaling data of the APS data structure, after decoding the slice, determine that the APS data structure can be removed from the buffer, remove the APS data structure from the buffer based on the determination, and decode one or more additional slices of the video data after removing the APS data structure from the buffer.

Abstract translation: 在一个示例中，视频解码器被配置为在编码设备的缓冲器中存储适配参数集（APS）数据结构，其中APS数据结构包括适用于一个或多个视频数据片段的信令数据，解码至少一个 基于APS数据结构的信令数据，在解码片之后，确定可以从缓冲器中移除APS数据结构，基于该确定从缓冲器中移除APS数据结构，并解码一个或多个 从缓冲区中删除APS数据结构后的视频数据的附加片段。

公开(公告)号：US20120320968A1

公开(公告)日：2012-12-20

申请号：US13487914

申请日：2012-06-04

Applicant: Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

Inventor： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/40 ,  H04N19/52

Abstract: A unified candidate block set for both adaptive motion vector prediction (AMVP) mode and merge mode for use in inter-prediction is proposed. In general, the same candidate block set is used regardless of which motion vector prediction mode (e.g., merge mode or AMVP mode) is used. In other examples of this disclosure, one candidate block in a set of candidate blocks is designated as an additional candidate block. The additional candidate block is used if one of the other candidate blocks is unavailable. Also, the disclosure proposes a checking pattern where the left candidate block is checked before the below left candidate block. Also, the above candidate block is checked before the right above candidate block.