公开(公告)号：US20170289543A1

公开(公告)日：2017-10-05

申请号：US15622878

申请日：2017-06-14

Applicant: QUALCOMM Incorporated

Inventor： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

IPC: H04N19/11 ,  H04N19/122 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/122 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

Abstract: A video coder can be configured to determine an intra-prediction mode for a block of video data, identify a most probable transform based on the intra-prediction mode determined for the block of video data, and code an indication of whether the most probable transform is a transform used to encode the block of video data. The most probable transform can be a non-square transform.

公开(公告)号：US20170201770A1

公开(公告)日：2017-07-13

申请号：US15470556

申请日：2017-03-27

Applicant: QUALCOMM Incorporated

Inventor： Peisong Chen ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N19/615 ,  H04N19/122 ,  H04N19/66 ,  H04N19/137 ,  H04N19/176 ,  H04N19/174 ,  H04N19/513

CPC classification number: H04N19/615 ,  H04N19/119 ,  H04N19/122 ,  H04N19/137 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/537 ,  H04N19/543 ,  H04N19/66

Abstract: In one example, an apparatus includes a video encoder configured to partition a block of video data into a first geometric partition and a second geometric partition using a geometric motion partition line, wherein the block comprises N×N pixels, divide the block of video data into four equally-sized, non-overlapping (N/2)×(N/2) sub-blocks, and encode at least one of the sub-blocks through which the geometric motion partition line passes using a transform size smaller than (N/2)×(N/2). The video encoder may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks. In one example, a video decoder may inverse transform the sub-blocks, and may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks.

公开(公告)号：US09654772B2

公开(公告)日：2017-05-16

申请号：US13744087

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Liwei Guo ,  Muhammed Zeyd Coban ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/50 ,  H03M7/40 ,  H04N19/13 ,  H04N19/60 ,  H04N19/91 ,  H04N19/21

CPC classification number: H04N19/50 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/21 ,  H04N19/60 ,  H04N19/91

Abstract: Techniques for coding data, such as, e.g., video data, include coding a first syntax element, conforming to a particular type of syntax element, of a first slice of video data, conforming to a first slice type, using an initialization value set. The techniques further include coding a second syntax element, conforming to the same type of syntax element, of a second slice of video data, conforming to a second slice type, using the same initialization value set. In this example, the first slice type may be different from the second slice type. Also in this example, at least one of the first slice type and the second slice type may be a temporally predicted slice type. For example, the at least one of the first and second slice types may be a unidirectional inter-prediction (P) slice type, or a bi-directional inter-prediction (B) slice type.

公开(公告)号：US09510020B2

公开(公告)日：2016-11-29

申请号：US13655009

申请日：2012-10-18

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz ,  Xianglin Wang

IPC: H04N7/32 ,  H04N19/86 ,  H04N19/176 ,  H04N19/70 ,  H04N19/117 ,  H04N19/157 ,  H04N19/182 ,  H04N19/82 ,  H04N19/12 ,  H04N19/61

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

Abstract: Techniques for coding video data include coding a plurality of blocks of video data, wherein at least one block of the plurality of blocks of video data is coded using a coding mode that is one of an intra pulse code modulation (IPCM) coding mode and a lossless coding mode. In some examples, the lossless coding mode may use prediction. The techniques further include assigning a non-zero quantization parameter (QP) value for the at least one block coded using the coding mode. The techniques also include performing deblocking filtering on one or more of the plurality of blocks of video data based on the coding mode used to code the at least one block and the assigned non-zero QP value for the at least one block.

Abstract translation: 用于对视频数据进行编码的技术包括对多个视频数据块进行编码，其中使用作为帧内脉码调制（IPCM）编码模式和编码模式之一的编码模式来对多个视频数据块中的至少一个块进行编码 无损编码模式。 在一些示例中，无损编码模式可以使用预测。 所述技术还包括为使用编码模式编码的至少一个块分配非零量化参数（QP）值。 所述技术还包括：基于用于对所述至少一个块进行编码的编码模式和所述至少一个块的所分配的非零QP值，对所述多个视频数据块中的一个或多个块执行去块滤波。

公开(公告)号：US09344723B2

公开(公告)日：2016-05-17

申请号：US13830720

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Geert Van Der Auwera ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N19/80 ,  H04N19/172 ,  H04N19/134 ,  H04N19/117 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/134 ,  H04N19/172 ,  H04N19/82 ,  H04N19/86

Abstract: Techniques are described for providing continuous control of a deblocking filter for a video block using a beta offset parameter. Deblocking filters are defined based on one or more deblocking decisions. Conventionally, a quantization parameter and a beta offset parameter are used to identify a beta parameter (“β”) value that determines threshold values of the deblocking decisions. The value of the beta offset parameter results in a change or increment of the β value. For small increments of the β value, rounding of the threshold values may result in no change and discontinuous control of the deblocking decisions. The techniques include calculating at least one deblocking decision for the deblocking filter according to a threshold value that has been modified based on a multiplier value of the beta offset parameter. The multiplier value applied to the beta offset parameter causes an integer change in the modified threshold value.

Abstract translation: 描述了使用β偏移参数来提供用于视频块的去块滤波器的连续控制的技术。 去块滤波器基于一个或多个去块决定来定义。 常规地，使用量化参数和β偏移参数来识别确定解块决策的阈值的β参数（“＆bgr”）值。 β偏移参数的值导致＆bgr的更改或增量; 值。 对于＆bgr的小增量 值，舍入阈值可能导致解调决定的变化和不连续的控制。 这些技术包括根据已经基于β偏移参数的乘数值修改的阈值来计算去块滤波器的至少一个去块决定。 应用于β偏移参数的乘数值会导致修改后的阈值中的整数更改。

公开(公告)号：US09325991B2

公开(公告)日：2016-04-26

申请号：US13860460

申请日：2013-04-10

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Jianle Chen ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/36 ,  H04N19/51 ,  H04N19/52 ,  H04N19/176 ,  H04N19/513 ,  H04N19/42 ,  H04N19/523

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/42 ,  H04N19/513 ,  H04N19/52 ,  H04N19/523

Abstract: A video decoder determines, based at least in part on a size of a prediction unit (PU), whether to round either or both a horizontal or a vertical component of a motion vector of the PU from sub-pixel accuracy to integer-pixel accuracy. The video decoder generates, based at least in part on the motion vector, a predictive sample block for the PU and generates, based in part on the predictive sample block for the PU, a reconstructed sample block.

Abstract translation: 视频解码器至少部分地基于预测单元（PU）的大小来确定是否将PU的运动矢量的水平或垂直分量从子像素精度舍入到整数像素精度 。 视频解码器至少部分地基于运动矢量生成PU的预测采样块，并且部分地基于PU的预测采样块产生重建的采样块。

公开(公告)号：US09264706B2

公开(公告)日：2016-02-16

申请号：US13828173

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Vadim Seregin ,  Xianglin Wang ,  Muhammed Zeyd Coban

IPC: H04N19/70 ,  H04N19/13 ,  H04N19/463 ,  H04N19/103 ,  H03M7/30

CPC classification number: H04N19/103 ,  H03M7/30 ,  H04N19/13 ,  H04N19/463 ,  H04N19/70

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。 该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，至少具有CABAC处理的旁路编码模式的参考索引值的另一个bin，并且对参考进行二值化 指数值

公开(公告)号：US09253487B2

公开(公告)日：2016-02-02

申请号：US13904336

申请日：2013-05-29

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Xianglin Wang

IPC: H04N7/12 ,  H04N13/00 ,  H04N19/50 ,  H04N19/52 ,  H04N19/70 ,  H04N19/30 ,  H04N19/196 ,  H04N19/593 ,  H04N19/597

CPC classification number: H04N19/50 ,  H04N19/196 ,  H04N19/30 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video information of a base, or reference, layer and an enhancement layer. The processor determines whether a base layer reference index is valid for the enhancement layer, and resolves mismatches between base layer and enhancement layer reference indices and reference frame picture order counts. Resolving mismatches may comprise deriving valid reference information from the base layer, using spatial motion information of video data associated with the reference information of the base and/or enhancement layers.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储基础或参考，层和增强层的视频信息。 处理器确定基本层参考索引对于增强层是否有效，并且解决基本层和增强层参考索引与参考帧图像顺序计数之间的不匹配。 解决不匹配可以包括使用与基本和/或增强层的参考信息相关联的视频数据的空间运动信息从基层导出有效参考信息。

公开(公告)号：US09154787B2

公开(公告)日：2015-10-06

申请号：US13744128

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Sanjeev Kumar ,  Hsiao-Chiang Chuang ,  Shu Xiao ,  Kai Wang ,  Xianglin Wang ,  Wei-Jung Chien ,  Marta Karczewicz ,  Vadim Seregin

IPC: H04N19/50 ,  H04N19/436 ,  H04N19/11 ,  H04N19/156 ,  H04N19/174

CPC classification number: H04N19/50 ,  H04N19/11 ,  H04N19/156 ,  H04N19/174 ,  H04N19/436

Abstract: The techniques of this disclosure are generally related to parallel coding of video units that reside along rows or columns of blocks in largest coding units. For example, the techniques include removing intra-prediction dependencies between two video units in different rows or columns to allow for parallel coding of rows or columns of the video units.

Abstract translation: 本公开的技术通常涉及以最大编码单元沿着行或列的行驻留的视频单元的并行编码。 例如，这些技术包括去除不同行或列中的两个视频单元之间的帧内预测依赖性，以允许视频单元的行或列的并行编码。

公开(公告)号：US20140301460A1

公开(公告)日：2014-10-09

申请号：US14245864

申请日：2014-04-04

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Xianglin Wang

IPC: H04N19/146 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/14 ,  H04N19/146 ,  H04N19/147 ,  H04N19/149 ,  H04N19/18 ,  H04N19/19 ,  H04N19/593

Abstract: This disclosure describes techniques for rate control for intra coded frames. In one example of the disclosure, a rate control parameter may be calculated using a target bit rate and a complexity measure. In one example, the complexity measure is calculated with a sum of absolute transformed differences (SATD) calculation of an intra-coded frame.

Abstract translation: 本公开描述了用于帧内编码帧的速率控制的技术。 在本公开的一个示例中，可以使用目标比特率和复杂度度量来计算速率控制参数。 在一个示例中，使用帧内编码帧的绝对变换差（SATD）计算的和来计算复杂度度量。