公开(公告)号：US20170094313A1

公开(公告)日：2017-03-30

申请号：US15270455

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Xin Zhao ,  Jianle Chen ,  Amir Said ,  Marta Karczewicz ,  Vadim Seregin

IPC: H04N19/61 ,  H04N1/32 ,  H04N19/159 ,  H04N19/124 ,  H04N19/625

CPC classification number: H04N19/61 ,  H04L43/16 ,  H04N1/32181 ,  H04N19/12 ,  H04N19/122 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/625

Abstract: Techniques are described in which a decoder is configured to inverse quantize a first coefficient block and apply a first inverse transform to at least part of the inverse quantized first coefficient block to generate a second coefficient block. The first inverse transform is a non-separable transform. The decoder is further configured to apply a second inverse transform to the second coefficient block to generate a residual video block. The second inverse transform converts the second coefficient block from a frequency domain to a pixel domain. The decoder is further configured to form a decoded video block, wherein forming the decoded video block comprises summing the residual video block with one or more predictive blocks.

公开(公告)号：US09602802B2

公开(公告)日：2017-03-21

申请号：US14019944

申请日：2013-09-06

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Marta Karczewicz ,  Yong Wang

IPC: H04N7/12 ,  H04N13/00 ,  H04N21/81 ,  H04N21/84 ,  H04N21/845 ,  H04N21/854 ,  H04N19/597 ,  H04N19/70 ,  H04N19/61

CPC classification number: H04N13/161 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N21/816 ,  H04N21/84 ,  H04N21/8456 ,  H04N21/85406

Abstract: This disclosure includes techniques for signaling characteristics of a representation of multimedia content at a representation layer, such as frame packing arrangement information for the representation. In one example, an apparatus for receiving video data includes a processing unit configured to receive information indicative of whether a bitstream includes a packed frame of video data, wherein the packed frame comprises two frames corresponding to different views of a scene for three-dimensional playback, and wherein the information is present in a representation layer external to a codec layer of the bitstream, automatically determine whether the apparatus is capable of decoding and rendering the bitstream based on an analysis of the received information and decoding and rendering capabilities of the device, and retrieve the bitstream when the processing unit determines that the device is capable of decoding and rendering the bitstream.

公开(公告)号：US09596461B2

公开(公告)日：2017-03-14

申请号：US14089339

申请日：2013-11-25

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/30 ,  H04N19/196 ,  H04N19/157 ,  H04N19/182 ,  H04N19/174 ,  H04N19/82

CPC classification number: H04N19/117 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/30 ,  H04N19/82

Abstract: This disclosure describes techniques for coding video data. In particular, this disclosure describes techniques for loop filtering for video coding. The techniques of this disclosure may apply to loop filtering and/or partial loop filtering across block boundaries in scalable video coding processes. Loop filtering may include, for example, one or more of adaptive loop filtering (ALF), sample adaptive offset (SAO) filtering, and deblocking filtering.

Abstract translation: 本公开描述了用于编码视频数据的技术。 特别地，本公开描述了用于视频编码的环路滤波的技术。 本公开的技术可以应用于可扩展视频编码过程中跨块边界的环路滤波和/或部分环路滤波。 环路滤波可以包括例如自适应环路滤波（ALF），采样自适应偏移（SAO）滤波和去块滤波中的一个或多个。

公开(公告)号：US20170064336A1

公开(公告)日：2017-03-02

申请号：US15252986

申请日：2016-08-31

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Marta Karczewicz ,  Jianle Chen

IPC: H04N19/61 ,  H04N19/96 ,  H04N19/122 ,  H04N19/124

CPC classification number: H04N19/61 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/197 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: A video coder, such as a video encoder or a video decoder, uses a first Rice parameter derivation method and a second Rice parameter derivation method for coding coefficient levels of the TU. The first Rice parameter derivation method is a statistics-based derivation method. The second Rice parameter derivation method is a template-based derivation method.

Abstract translation: 诸如视频编码器或视频解码器的视频编码器使用第一Rice参数导出方法和第二Rice参数导出方法来编码TU的系数级。 第一个Rice参数推导方法是基于统计的推导方法。 第二个Rice参数推导方法是基于模板的推导方法。

公开(公告)号：US09584823B2

公开(公告)日：2017-02-28

申请号：US13853580

申请日：2013-03-29

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Peisong Chen ,  Marta Karczewicz

IPC: H04N7/36 ,  H04N19/513 ,  H04N19/597 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/597

Abstract: Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.

Abstract translation: 本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法，其中第一块与第一视差运动矢量相关联。 该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器，其中运动矢量预测器基于第一视差运动矢量。 当第二运动矢量包括视差运动矢量时，该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放的运动矢量预测器，其中缩放第一视差运动矢量包括应用包括视距 的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。

公开(公告)号：US09578331B2

公开(公告)日：2017-02-21

申请号：US14142510

申请日：2013-12-27

Applicant: QUALCOMM Incorporated

Inventor： Yan Ye ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/625 ,  H04N19/11 ,  H04N19/196 ,  H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/46 ,  H04N19/13 ,  H04N19/122 ,  H04N19/129 ,  H04N19/61 ,  H04N19/593 ,  H04N19/103 ,  H04N19/12 ,  H04N19/463 ,  H04N19/157 ,  H04N19/18 ,  H04N19/19 ,  H04N19/48 ,  H04N19/42

CPC classification number: H04N19/625 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/19 ,  H04N19/196 ,  H04N19/197 ,  H04N19/42 ,  H04N19/46 ,  H04N19/463 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques for transforming residual blocks of video data. In particular, a plurality of different transforms selectively applied to the residual blocks based on the prediction mode of the video blocks. At least a portion of the plurality of transforms are separable directional transform specifically trained for a corresponding prediction mode to provide better energy compaction for the residual blocks of the given prediction mode. Using separable directional transforms offers the benefits of lower computation complexity and storage requirement than use of non-separable directional transforms. Additionally, a scan order used to scan the coefficients of the residual block may be adjusted when applying separable directional transforms. In particular, the scan order may be adjusted based on statistics associated with one or more previously coded blocks to better ensure that non-zero coefficients are grouped near the front of the one-dimensional coefficient vector to improve the effectiveness of entropy coding.

Abstract translation: 本公开描述了用于转换视频数据的残余块的技术。 具体地，基于视频块的预测模式，选择性地将多个不同的变换应用于残差块。 多个变换的至少一部分是针对相应的预测模式进行专门训练的可分离方向变换，以为给定预测模式的残余块提供更好的能量压缩。 使用可分离的方向变换提供了比使用不可分离的方向变换更低的计算复杂度和存储要求的好处。 此外，当应用可分离的方向变换时，可以调整用于扫描残差块的系数的扫描顺序。 特别地，可以基于与一个或多个先前编码的块相关联的统计来调整扫描顺序，以更好地确保非零系数被分组在一维系数向量的前面附近，以提高熵编码的有效性。

公开(公告)号：US09560358B2

公开(公告)日：2017-01-31

申请号：US14334417

申请日：2014-07-17

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Vadim Seregin ,  Xiang Li ,  Krishnakanth Rapaka ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/70 ,  H04N19/33 ,  H04N19/30 ,  H04N19/157 ,  H04N19/174 ,  H04N19/577

CPC classification number: H04N19/105 ,  H04N19/157 ,  H04N19/174 ,  H04N19/30 ,  H04N19/33 ,  H04N19/577 ,  H04N19/70

Abstract: An apparatus configured to code video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a reference layer and an enhancement layer, the reference layer comprising a reference layer (RL) picture having a first slice and a second slice, and the enhancement layer comprising an enhancement layer (EL) picture corresponding to the RL picture. The processor is configured to generate an inter-layer reference picture (ILRP) by upsampling the RL picture, the ILRP having a single slice associated therewith, set slice information of the single slice of the ILRP equal to slice information of the first slice, and use the ILRP to code at least a portion of the EL picture. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码的装置包括与存储器通信的存储器和处理器。 存储器被配置为存储与参考层和增强层相关联的视频信息，参考层包括具有第一切片和第二切片的参考层（RL）图像，并且增强层包括增强层（EL）图像 对应于RL图片。 处理器被配置为通过对RL图像进行上采样来产生层间参考图片（ILRP），ILRP具有与其相关联的单个切片，将ILRP的单个切片的切片信息设置为等于第一切片的切片信息，以及 使用ILRP来编码EL图片的至少一部分。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US09549182B2

公开(公告)日：2017-01-17

申请号：US14259046

申请日：2014-04-22

Applicant: QUALCOMM Incorporated

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

IPC: H04N11/02 ,  H04N19/593 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129 ,  H04N19/14 ,  H04N19/88 ,  H04N19/46

CPC classification number: H04N19/159 ,  H04N19/129 ,  H04N19/14 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/88

Abstract: Techniques are described for coding residual data of a prediction residual block in either a lossy or lossless coding mode, in which a transform is skipped or bypassed. The techniques of this disclosure include determining whether to reposition, e.g., rotate or flip, residual data of a residual block prior to coding the residual data of the residual block. For both the lossy and lossless coding modes, a video coding device determines whether to reposition residual data of a residual block based on a prediction mode of the residual block and a size of the residual block. In some examples, the techniques disable repositioning for all residual blocks in the inter-prediction mode and the intra block copying prediction mode, and determine to reposition residual blocks in the intra-prediction mode when the residual blocks have block sizes that are less than or equal to a threshold size.

Abstract translation: 描述了用于在有损或无损编码模式中编码预测残差块的残差数据的技术，其中跳变或旁路转换。 本公开的技术包括在对残余块的残差数据进行编码之前确定是否重新定位（例如）旋转或翻转残余块的残差数据。 对于有损和无损编码模式，视频编码装置基于残差块的预测模式和残余块的大小来确定是否重新定位残余块的残差数据。 在一些示例中，这些技术禁止在帧间预测模式和帧内块复制预测模式中的所有残余块的重新定位，并且当残差块具有小于或等于或小于块的块大小时，确定在帧内预测模式中重新定位残余块 等于阈值大小。

公开(公告)号：US09549180B2

公开(公告)日：2017-01-17

申请号：US13865894

申请日：2013-04-18

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang ,  Marta Karczewicz

IPC: H04N19/00 ,  H04N19/51 ,  H04N19/597 ,  H04N19/52 ,  H04N19/513 ,  H04N19/436

CPC classification number: H04N19/597 ,  H04N19/436 ,  H04N19/513 ,  H04N19/52

Abstract: In one example, a video coder (e.g., a video encoder or a video decoder) is configured to determine that a current block of video data is coded using a disparity motion vector, wherein the current block is within a containing block, based on a determination that a neighboring block to the current block is also within the containing block, substitute a block outside the containing block and that neighbors the containing block for the neighboring block in a candidate list, select a disparity motion vector predictor from one of a plurality of blocks in the candidate list, and code the disparity motion vector based on the disparity motion vector predictor. In this manner, the techniques of this disclosure may allow blocks within the containing block to be coded in parallel.

Abstract translation: 在一个示例中，视频编码器（例如，视频编码器或视频解码器）被配置为使用视差运动矢量来确定视频数据的当前块被编码，其中当前块位于包含块内，基于 确定当前块的相邻块也在所述包含块内，替代所述包含块外的块，并且在候选列表中邻近所述相邻块的所述包含块，从多个子块中的一个中选择视差运动向量预测器 候选列表中的块，并且基于视差运动矢量预测器对视差运动矢量进行编码。 以这种方式，本公开的技术可以允许并行地对包含块内的块进行编码。

公开(公告)号：US09538190B2

公开(公告)日：2017-01-03

申请号：US14245864

申请日：2014-04-04

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Xianglin Wang

IPC: H04N7/12 ,  H04N19/11 ,  H04N19/147 ,  H04N19/149 ,  H04N19/593 ,  H04N19/14 ,  H04N19/146 ,  H04N19/18 ,  H04N19/19

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。