公开(公告)号：US20180376164A1

公开(公告)日：2018-12-27

申请号：US16011340

申请日：2018-06-18

Applicant: QUALCOMM Incorporated

Inventor： Kai ZHANG ,  Xiang LI ,  Jianle CHEN ,  Li ZHANG ,  Marta KARCZEWICZ

IPC: H04N19/56 ,  H04N19/176

Abstract: Techniques are directed to a device for decoding a current block of video data in a current coding picture. The device may include a memory configured to store video data. The device may also include a processor configured to generate a first prediction block for the current block of the video data in the current picture according to an intra-prediction mode and generate a second prediction block for the current block of the video data in the current picture the picture according to an inter-prediction mode. The processor may be configured to generate motion information propagated from the second prediction block of the picture to the first prediction block, and use the motion information to obtain a final prediction block, then generate a reconstructed block based on a combination of the final prediction block and a residual block.

公开(公告)号：US20180278936A1

公开(公告)日：2018-09-27

申请号：US15922723

申请日：2018-03-15

Applicant: QUALCOMM Incorporated

Inventor： Fnu HENDRY ,  Muhammed COBAN ,  Geert VAN DER AUWERA ,  Marta KARCZEWICZ

IPC: H04N19/126 ,  H04N19/19 ,  H04N19/597

CPC classification number: H04N19/126 ,  H04N19/103 ,  H04N19/124 ,  H04N19/147 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/597

Abstract: Techniques and systems are provided for processing 360-degree video data. For example, a picture of the 360-degree video data can be obtained. The picture can include samples projected from a three-dimensional format to a two-dimensional format. A weight value can be determined for at least one sample of the picture. The weight value can be determined based at least on a position of the at least one sample in the picture. At least one adaptive parameter can be determined for the at least one sample using the determined weight value. The at least one adaptive parameter can include one or more of an adaptive weighted distortion, an adaptive weighted quantization parameter value, or an adaptive weighted lambda value. A cost associated with coding the at least one sample using one or more coding modes can be determined using the at least one adaptive parameter of the at least one sample.

公开(公告)号：US20180276826A1

公开(公告)日：2018-09-27

申请号：US15926957

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Geert VAN DER AUWERA ,  Muhammed COBAN ,  Marta KARCZEWICZ

IPC: G06T7/11 ,  G06T3/00 ,  G02B27/01 ,  G06T19/00

CPC classification number: G06T7/11 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/014 ,  G06T3/005 ,  G06T3/0062 ,  G06T3/0093 ,  G06T19/006 ,  H04N5/23238 ,  H04N13/117 ,  H04N13/161 ,  H04N13/194 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/197 ,  H04N19/597 ,  H04N19/85 ,  H04N19/88

Abstract: Provided are systems and methods for processing 360-degree video data. In various implementations, a spherical representation of a 360-degree video frame can be segmented into a top region, a bottom region, and a middle region. The middle region can be mapped into one or more rectangular areas of an output video frame. The top region can be mapped into a first rectangular area of the output video frame using a mapping that converts a square to a circle, such that pixels in the circular top region are expanded to fill the first rectangular region. The bottom region can be mapped into a second rectangular area of the output video frame such that pixels in the circular bottom region are expanded to fill the second rectangular region.

公开(公告)号：US20140294063A1

公开(公告)日：2014-10-02

申请号：US14228031

申请日：2014-03-27

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N19/105 ,  H04N19/30 ,  H04N19/503 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/503 ,  H04N19/593 ,  H04N19/70

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory unit configured to store reference layer pictures associated with a reference layer, an enhancement layer, or both. The apparatus further comprises a processor operationally coupled to the memory unit. In one embodiment, the processor is configured to restrict usage of at most one reference layer pictures that has a different spatial resolution than a current picture as an inter-layer reference picture, and predict the current picture using inter-layer prediction and the inter-layer reference picture.

Abstract translation: 在一个实现中，提供了一种用于对视频信息进行编码或解码的装置。 该装置包括被配置为存储与参考层，增强层或两者相关联的参考层图像的存储单元。 该装置还包括可操作地耦合到存储器单元的处理器。 在一个实施例中，处理器被配置为将具有与当前图像不同的空间分辨率的至多一个参考层图像的使用限制为层间参考图像，并且使用层间预测和帧间预测来预测当前图像， 层参考图片。

公开(公告)号：US20140140393A1

公开(公告)日：2014-05-22

申请号：US14080330

申请日：2013-11-14

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/12 ,  H04N19/124 ,  H04N19/134 ,  H04N19/136 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30

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 is configured to store video information associated with a base layer and an enhancement layer. The processor is configured to, in response to determining that the video information associated with the enhancement layer is to be determined based upon the video information associated with the base layer, select between a first transform and a second transform based at least in part on at least one of a transform unit (TU) size and a color component type of the enhancement layer video information.

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。 存储器单元被配置为存储与基本层和增强层相关联的视频信息。 处理器被配置为响应于确定与增强层相关联的视频信息将基于与基本层相关联的视频信息来确定，至少部分地基于在第一变换和第二变换之间进行选择 增强层视频信息的变换单元（TU）尺寸和颜色分量类型中的至少一个。

公开(公告)号：US20140098880A1

公开(公告)日：2014-04-10

申请号：US14035129

申请日：2013-09-24

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Marta KARCZEWICZ ,  Ying CHEN

IPC: H04N7/36

CPC classification number: H04N19/159 ,  H04N19/176 ,  H04N19/33 ,  H04N19/463 ,  H04N19/517 ,  H04N19/52

Abstract: In one embodiment, an apparatus configured to code video data includes a processor and a memory unit. The memory unit stores video data associated with a first layer having a first spatial resolution and a second layer having a second spatial resolution. The video data associated with the first layer includes at least a first layer block and first layer prediction mode information associated with the first layer block, and the first layer block includes a plurality of sub-blocks where each sub-block is associated with respective prediction mode data of the first layer prediction mode information. The processor derives the predication mode data associated with one of the plurality of sub-blocks based at least on a selection rule, upsamples the derived prediction mode data and the first layer block, and associates the upsampled prediction mode data with each upsampled sub-block of the upsampled first layer block.

Abstract translation: 在一个实施例中，被配置为对视频数据进行编码的装置包括处理器和存储器单元。 存储单元存储与具有第一空间分辨率的第一层相关联的视频数据和具有第二空间分辨率的第二层。 与第一层相关联的视频数据至少包括与第一层块相关联的第一层块和第一层预测模式信息，并且第一层块包括多个子块，其中每个子块与相应的预测相关联 模式数据的第一层预测模式信息。 处理器至少基于选择规则导出与多个子块中的一个相关联的预测模式数据，对导出的预测模式数据和第一层块进行上采样，并将上采样的预测模式数据与每个上采样的子块相关联 的上采样第一层块。

公开(公告)号：US20140010292A1

公开(公告)日：2014-01-09

申请号：US13935393

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/32

CPC classification number: H04N19/103 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/593 ,  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 difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines a value of a video unit based on the difference video layer. The processor is further configured to refrain from performing a transform and residual coding of the determined value of the video unit.

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。 存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。 处理器基于差异视频层来确定视频单元的值。 处理器还被配置为不执行对所确定的视频单元的值的变换和残差编码。

公开(公告)号：US20140003529A1

公开(公告)日：2014-01-02

申请号：US13929287

申请日：2013-06-27

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman JOSHI ,  Joel SOLE ROJALS ,  Marta KARCZEWICZ

IPC: H04N7/30

CPC classification number: H04N19/60 ,  H04N19/13 ,  H04N19/18 ,  H04N19/463

Abstract: A video coder determines, based at least in part on a distance between a current sub-block of a transform coefficient block and a sub-block that contains a last significant coefficient (LSC) of the transform coefficient block, coding contexts for significance flags for transform coefficients of the current sub-block. Furthermore, the video coder entropy codes, based on the coding contexts for the significance flags for the transform coefficients of the current sub-block, the significance flags for the transform coefficients of the current sub-block.

Abstract translation: 视频编码器至少部分地基于变换系数块的当前子块与包含变换系数块的最后有效系数（LSC）的子块之间的距离来确定用于显示标志的编码上下文 变换当前子块的系数。 此外，视频编码器基于当前子块的变换系数的有效标志的编码上下文，对当前子块的变换系数的有效标志进行熵编码。

公开(公告)号：US20130287108A1

公开(公告)日：2013-10-31

申请号：US13865894

申请日：2013-04-18

Applicant: QUALCOMM Incorporated

Inventor： Ying CHEN ,  Li ZHANG ,  Marta KARCZEWICZ

IPC: H04N7/36

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：US20130272414A1

公开(公告)日：2013-10-17

申请号：US13861319

申请日：2013-04-11

Applicant: QUALCOMM INCORPORATED

Inventor： Joel SOLE ROJALS ,  Rajan Laxman JOSHI ,  Wei-Jung CHIEN ,  Jianle CHEN ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N7/50

CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/14 ,  H04N19/18 ,  H04N19/70

Abstract: A method of decoding data indicative of a subset of transform coefficients is described. The coefficients are indicative of a block of video data. The method may include determining that no transform coefficient in the subset of transform coefficients has an absolute value greater than one, and, based on the determining, skipping one or more decoding passes on the subset of transform coefficients, the decoding passes relating to decoding level information associated with the subset of transform coefficients.

Abstract translation: 描述了一种解码表示变换系数子集的数据的方法。 系数表示视频数据块。 该方法可以包括确定变换系数的子集中的变换系数不具有大于1的绝对值，并且基于确定，跳过变换系数子集上的一个或多个解码通过，与解码级相关的解码通过 与变换系数子集相关联的信息。