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：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。

公开(公告)号：US20210195234A1

公开(公告)日：2021-06-24

申请号：US16762777

申请日：2018-11-14

Applicant: Qualcomm Incorporated

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

IPC: H04N19/56 ,  H04N19/52 ,  H04N19/70 ,  H04N19/176

Abstract: A video decoder including one or more processors configured to receive one or more bits, in a bitstream, that indicate the encoded current block of video data was encoded based on a unified candidate list that includes motion vector candidates based on one or more translational motion vectors, and motion vector candidates based on one or more affine motion vectors. A merge index represented in the bitstream may indicate which candidate in the unified candidate list is associated with the motionvector of the encoded current block of video data. Based on the merge index, the one or more processors are configured to select one or more motion vectors of a candidate from the unified candidate list, based on the merge index, where the candidate has one or more of the motion vectors corresponding to the translational motion vectors or affine motion vectors within the unified candidate list.

公开(公告)号：US20190313130A1

公开(公告)日：2019-10-10

申请号：US16452315

申请日：2019-06-25

Applicant: QUALCOMM Incorporated

Inventor： Li ZHANG ,  Wei-Jung CHIEN ,  Jianle CHEN ,  Xin ZHAO ,  Marta KARCZEWICZ

IPC: H04N19/96 ,  H04N19/186 ,  H04N19/463 ,  H04N19/11 ,  H04N19/593 ,  H04N19/46 ,  H04N19/70

Abstract: An example device includes a memory and processing circuitry in communication with the memory. The processing circuitry of a device is configured to form a most probable mode (MPM) candidate list for a chroma block of the video data stored to the memory, such that the MPM candidate list includes one or more derived modes (DMs) associated with a luma block of the video data associated with the chroma block, and a plurality of luma prediction modes that can be used for coding luminance components of the video data. The processing circuitry is further configured to select a mode from the MPM candidate list, and to code the chroma block according to the mode selected from the MPM candidate list.

公开(公告)号：US20150103905A1

公开(公告)日：2015-04-16

申请号：US14513113

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/503 ,  H04N19/51 ,  H04N19/61 ,  H04N19/44 ,  H04N19/91

CPC classification number: H04N19/503 ,  H04N19/30 ,  H04N19/44 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: Systems and methods for separately defining and indicating inter-layer prediction dependencies for a first layer with respect to each of a number of enhancement layers associated with the first layer are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory unit configured to store a first picture associated with a first layer and enhancement layer pictures associated with a plurality of enhancement layers. The video encoder further comprises a processor in communication with the memory unit. The processor is configured to provide a separate indication for each of the enhancement layers that indicates whether the first picture can be used for inter-layer prediction of the enhancement layer picture in a respective enhancement layer.

Abstract translation: 这里描述了用于相对于与第一层相关联的多个增强层中的每一个分别定义和指示第一层的层间预测依赖性的系统和方法。 在本公开中描述的主题的一个方面提供了一种视频编码器，其包括被配置为存储与第一层相关联的第一画面的存储器单元和与多个增强层相关联的增强层画面。 视频编码器还包括与存储器单元通信的处理器。 处理器被配置为为每个增强层提供指示第一图像是否可以用于相应增强层中的增强层图像的层间预测的单独指示。

公开(公告)号：US20150016502A1

公开(公告)日：2015-01-15

申请号：US14329804

申请日：2014-07-11

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Vadim SEREGIN ,  Jianle CHEN ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N19/187 ,  H04N19/50

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/187 ,  H04N19/33 ,  H04N19/70

Abstract: An apparatus configured to code video information 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 current layer and an enhancement layer, the current layer having a current picture. The processor is configured to determine whether the current layer may be coded using information from the enhancement layer, determine whether the enhancement layer has an enhancement layer picture corresponding to the current picture, and in response to determining that the current layer may be coded using information from the enhancement layer and that the enhancement layer has an enhancement layer picture corresponding to the current picture, code the current picture based on the enhancement layer 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单元通信的存储器单元和处理器。 存储器单元被配置为存储与当前层和增强层相关联的视频信息，当前层具有当前画面。 处理器被配置为确定是否可以使用来自增强层的信息对当前层进行编码，确定增强层是否具有与当前图像对应的增强层图像，以及响应于确定当前层可以使用信息进行编码 并且增强层具有与当前画面对应的增强层画面，基于增强层画面对当前画面进行编码。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140294062A1

公开(公告)日：2014-10-02

申请号：US14227910

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 been resampled as an inter-layer reference picture, and predict a 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，处理器被配置为限制已被重采样的至多一个参考层图像的使用作为层间参考图片，并且使用层间预测和层间参考图片来预测当前图像。

公开(公告)号：US20140161179A1

公开(公告)日：2014-06-12

申请号：US14049649

申请日：2013-10-09

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ying CHEN ,  Jianle CHEN

IPC: H04N7/26 ,  H04N7/46

CPC classification number: H04N19/30 ,  H04N19/33 ,  H04N19/34 ,  H04N19/463 ,  H04N19/50 ,  H04N19/55 ,  H04N19/59

Abstract: An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with an enhancement layer having a first block and a base layer having a second block, the second block in the base layer corresponding to the first block in the enhancement layer. The processor is configured to predict, by inter layer prediction, the first block in the enhancement layer based on information derived from the second block in the base layer. At least a portion of the second block is located outside of a reference region of the base layer, the reference region being available for use for the inter layer prediction of the first block. 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单元通信的存储器单元和处理器。 存储器单元被配置为存储与具有第一块的增强层相关联的视频信息和具有第二块的基本层，所述基本层中的第二块对应于增强层中的第一块。 处理器被配置为基于从基层中的第二块导出的信息，通过层间预测来预测增强层中的第一块。 第二块的至少一部分位于基本层的参考区域的外部，该参考区域可用于第一块的层间预测。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140140405A1

公开(公告)日：2014-05-22

申请号：US14078242

申请日：2013-11-12

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Marta KARCZEWICZ ,  Liwei GUO

IPC: H04N7/26

CPC classification number: H04N19/109 ,  H04N19/176 ,  H04N19/20 ,  H04N19/30 ,  H04N19/51 ,  H04N19/577

Abstract: An apparatus configured to code video information 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 video information comprises at least one enhancement layer (EL) block and at least one co-located base layer (BL) block. The co-located BL block has motion information associated therewith. The processor is configured to, in response to determining that the size of the EL block is smaller than a threshold size, either (1) use less than all of the motion information associated with the co-located BL block to code the EL block, or (2) refrain from using any motion information associated with the co-located BL block to code the EL block. 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单元通信的存储器单元和处理器。 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。 视频信息包括至少一个增强层（EL）块和至少一个共同定位的基本层（BL）块。 共同配置的BL块具有与其相关的运动信息。 响应于确定EL块的尺寸小于阈值尺寸，处理器被配置为（1）使用少于与同位置BL块相关联的所有运动信息来编码EL块， 或者（2）避免使用与同位置BL块相关联的任何运动信息来编码EL块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140064359A1

公开(公告)日：2014-03-06

申请号：US14011406

申请日：2013-08-27

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jewon KANG ,  Jianle CHEN ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/187 ,  H04N19/30 ,  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 associated with a reference layer and a corresponding enhancement layer. The processor receives a mode list associated with the enhancement layer, the mode list comprising three entities, each entity identifying a different mode for determining a value of a video unit located at a position within the enhancement layer. The processor changes the mode list when a mode associated with a co-located video unit in the reference layer is not stored as the first entity in the mode list. The co-located video unit is located at a position in the reference layer corresponding to the position of the video unit in the enhancement layer.

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。 存储单元存储与参考层和对应的增强层相关联的视频信息。 处理器接收与增强层相关联的模式列表，模式列表包括三个实体，每个实体标识用于确定位于增强层内的位置的视频单元的值的不同模式。 当与参考层中的同位置视频单元相关联的模式未被存储为模式列表中的第一实体时，处理器改变模式列表。 共同定位的视频单元位于与增强层中的视频单元的位置相对应的参考层中的位置。