公开(公告)号：US20130329787A1

公开(公告)日：2013-12-12

申请号：US13828354

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Adarsh Krishnan RAMASUBRAMONIAN ,  Ye-Kui WANG ,  Ying CHEN

IPC: H04N7/26

CPC classification number: H04N19/00569 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

Abstract: A video coder codes a slice header for a slice of video data. The slice header includes a syntax element comprising identifying information for a long term reference picture, wherein the identifying information is explicitly signaled in the slice header or derived from a sequence parameter set corresponding to the slice. When the syntax element indicates that the identifying information for the long term reference picture is explicitly signaled, to code the slice header, the video coder is further configured to code a value for the identifying information for the long term reference picture in the slice header.

Abstract translation: 视频编码器对切片的视频数据进行编码。 切片标题包括语法元素，其包括识别用于长期参考图像的信息，其中识别信息在切片标题中被明确地发信号，或者从对应于切片的序列参数集导出。 当语法元素指示明确地用信号通知长期参考图像的识别信息时，为了对切片标题进行编码，视频编码器还被配置为在切片标题中编码用于长期参考图片的识别信息的值。

公开(公告)号：US20130222537A1

公开(公告)日：2013-08-29

申请号：US13777785

申请日：2013-02-26

Applicant: QUALCOMM INCORPORATED

Inventor： Ying CHEN ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N13/00

CPC classification number: H04N13/10 ,  H04N19/46 ,  H04N19/597 ,  H04N21/4343 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/816 ,  H04N21/8451

Abstract: To extract a sub-bitstream from a 3-dimensional video (3DV) bitstream, a device determines a texture target view list that indicates views in the 3DV bitstream that have texture view components that are required for decoding pictures in a plurality of target views. The target views are a subset of the views in the bitstream that are to be decodable from the sub-bitstream. In addition, the device determines a depth target view list that indicates views in the 3DV bitstream that have depth view components that are required for decoding pictures in the plurality of target views. The device determines the sub-bitstream based at least in part on the texture target view list and the depth target view list.

Abstract translation: 为了从三维视频（3DV）比特流中提取子比特流，设备确定指示3DV比特流中具有用于解码多个目标视图中的图片所需的纹理视图分量的视图的纹理目标视图列表。 目标视图是比特流中可从子比特流解码的视图的子集。 此外，该装置确定一个深度目标视图列表，其指示3DV比特流中具有在多个目标视图中解码图片所需的深度视图分量的视图。 该设备至少部分地基于纹理目标视图列表和深度目标视图列表来确定子比特流。

公开(公告)号：US20200154116A1

公开(公告)日：2020-05-14

申请号：US16746113

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui WANG

IPC: H04N19/169 ,  H04N21/854 ,  H04N19/70 ,  H04N19/30 ,  H04N19/159 ,  H04N19/105

Abstract: A device includes, in a first track of the file, a first end of sequence (EOS) network abstraction layer (NAL) unit for a coded video sequence of a bitstream. The first EOS NAL unit is in a first access unit of the coded video sequence. The device also includes, in a second track of the file, a second EOS NAL unit for the coded video sequence. The second EOS NAL unit is in a second access unit of the coded video sequence, the second EOS NAL unit being different from the first EOS NAL unit. The device may perform similar actions for end of bitstream (EOB) NAL units.

公开(公告)号：US20200068196A1

公开(公告)日：2020-02-27

申请号：US16671499

申请日：2019-11-01

Applicant: QUALCOMM Incorporated

Inventor： Li ZHANG ,  Wei-Jung CHIEN ,  Marta KARCZEWICZ ,  Ye-Kui WANG

IPC: H04N19/117 ,  H04N19/80 ,  H04N19/31 ,  H04N19/463 ,  H04N19/82

Abstract: A video coder may reconstruct a current picture of video data. A current region of the current picture is associated with a temporal index indicating a temporal layer to which the current region belongs. Furthermore, for each respective array of a plurality of arrays that correspond to different temporal layers, the video coder may store, in the respective array, sets of adaptive loop filtering (ALF) parameters used in applying ALF filters to samples of regions of pictures of the video data that are decoded prior to the current region and that are in the temporal layer corresponding to the respective array or a lower temporal layer than the temporal layer corresponding to the respective array. The video coder determines, based on a selected set of ALF parameters in the array corresponding to the temporal layer to which the current region belongs, an applicable set of ALF parameters.

公开(公告)号：US20180103199A1

公开(公告)日：2018-04-12

申请号：US15718581

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Fnu HENDRY ,  Ye-Kui WANG

IPC: H04N5/232 ,  H04N21/218 ,  H04N21/2662 ,  H04N19/61 ,  H04N21/81 ,  H04N21/2343 ,  H04N21/84

CPC classification number: H04N5/23238 ,  H04L67/02 ,  H04N19/103 ,  H04N19/162 ,  H04N19/172 ,  H04N19/33 ,  H04N19/61 ,  H04N19/70 ,  H04N21/21805 ,  H04N21/2343 ,  H04N21/234318 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/2662 ,  H04N21/440227 ,  H04N21/440245 ,  H04N21/816 ,  H04N21/84 ,  H04N21/845 ,  H04N21/8543

Abstract: Techniques and systems are provided for processing video data. For example, 360-degree video data can be obtained for processing by an encoding device or a decoding device. The 360-degree video data includes pictures divided into motion-constrained tiles. The 360-degree video data can be used to generate a media file including a plurality of tracks. Each of the plurality of tracks contain a set of at least one of the motion-constrained tiles. The set of at least one of the motion-constrained tiles corresponds to at least one of a plurality of viewports of the 360-degree video data. A first tile representation can be generated for the media file. The first tile representation encapsulates a first track of the plurality of tracks, and the first track includes a first set of at least one of the motion-constrained tiles at a first tile location in the pictures of the 360-degree video data. The first set of at least one of the motion-constrained tiles corresponds to a viewport of the 360-degree video data.

公开(公告)号：US20160381373A1

公开(公告)日：2016-12-29

申请号：US15187694

申请日：2016-06-20

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N19/503 ,  H04N19/593

CPC classification number: H04N19/503 ,  H04N19/573 ,  H04N19/593 ,  H04N19/70

Abstract: An apparatus configured to construct a reference picture list includes a memory and one or more processors in communication with the memory. The memory is configured to store one or more reference pictures. The one or more processors are configured to determine (i) a first number representative of a total number of reference pictures available for prediction in at least one of inter mode or intra block copy mode and (ii) a second number representative of a total number of reference pictures to be included in the reference picture list, and in response to a determination that the second number is greater than or equal to the first number, refrain from replacing a reference picture in the reference picture list with a current picture to be predicted. The one or more processors may encode or decode the current picture based on the reference picture list.

Abstract translation: 被配置为构造参考图片列表的装置包括存储器和与存储器通信的一个或多个处理器。 存储器被配置为存储一个或多个参考图片。 所述一个或多个处理器被配置为确定（i）代表在帧间模式或块内复制模式中的至少一个中可用于预测的参考图片的总数的第一数字，以及（ii）总数的第二数字代表 的参考图像被包括在参考图像列表中，并且响应于第二个数量大于或等于第一个数字的确定，不用当前要预测的图像替换参考图像列表中的参考图像 。 一个或多个处理器可以基于参考图片列表对当前图片进行编码或解码。

公开(公告)号：US20150373338A1

公开(公告)日：2015-12-24

申请号：US14741304

申请日：2015-06-16

Applicant: QUALCOMM Incorporated

Inventor： Fnu HENDRY ,  Adarsh Krishnan RAMASUBRAMONIAN ,  Ye-Kui WANG

IPC: H04N19/172 ,  H04N19/105 ,  H04N19/31 ,  H04N19/33 ,  H04N13/00 ,  H04N19/52 ,  H04N19/58 ,  H04N19/577 ,  H04N19/597 ,  H04N19/159 ,  H04N19/503

CPC classification number: H04N19/187 ,  H04N13/161 ,  H04N19/107 ,  H04N19/157 ,  H04N19/30 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/70 ,  H04W84/042 ,  H04W88/02

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit configured to store video information associated with a plurality of layers and a processor. The processor is configured to obtain information associated with a current access unit (AU) to be coded, the current AU containing pictures from one or more layers of the plurality of layers. The processor is further configured to determine whether the current AU includes a first layer containing an intra random access point (IRAP) picture. The process is additionally configured to reset a picture order count (POC) of the second layer at the current AU, in response to determining that the current AU includes (1) a first layer that contains an IRAP picture and (2) a second layer containing no picture or containing a discardable picture.

Abstract translation: 根据某些方面的用于对视频信息进行编码的装置包括被配置为存储与多个层相关联的视频信息的存储器单元和处理器。 处理器被配置为获得与要编码的当前访问单元（AU）相关联的信息，当前AU包含来自所述多个层中的一个或多个层的图片。 处理器还被配置为确定当前AU是否包括包含内部随机接入点（IRAP）图像的第一层。 该过程另外被配置为响应于确定当前AU包括（1）包含IRAP图像的第一层和（2）第二层来重置当前AU处的第二层的图像顺序计数（POC） 不包含图片或包含可丢弃的图片。

公开(公告)号：US20150016500A1

公开(公告)日：2015-01-15

申请号：US14322786

申请日：2014-07-02

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ying CHEN ,  Ye-Kui WANG

IPC: H04N19/30 ,  H04N19/29 ,  H04N19/187

CPC classification number: H04N19/31 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/61 ,  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 first layer and a second layer. The processor is configured to decode first layer pictures of the first layer, store the decoded first layer pictures in a decoded picture buffer, determine whether second layer pictures having no corresponding first layer pictures are to be coded, and in response to determining that second layer pictures having no corresponding first layer pictures are to be coded, process an indication that one or more decoded first layer pictures stored in the decoded picture buffer are to be removed. 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。 存储单元被配置为存储与第一层和第二层相关联的视频信息。 处理器被配置为对第一层的第一层图像进行解码，将解码的第一层图像存储在解码图像缓冲器中，确定是否要对不具有对应的第一层图像的第二层图像进行编码，并且响应于确定第二层 要对不具有对应的第一层图像的图像进行编码，处理存储在解码图像缓冲器中的一个或多个解码的第一层图像将被去除的指示。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140301456A1

公开(公告)日：2014-10-09

申请号：US14242526

申请日：2014-04-01

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui WANG ,  Jianle CHEN ,  Krishnakanth RAPAKA ,  Ying CHEN

IPC: H04N19/503 ,  H04N19/30

CPC classification number: H04N19/30 ,  H04N19/463 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory configured to store inter-layer reference pictures associated with a current picture that is being coded. The apparatus further comprises a processor operationally coupled to the memory. In one embodiment, the processor is configured to indicate a number of inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to indicate which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to determine an inter-layer reference picture set associated with the current picture using the indication of the number of inter-layer reference pictures and the indication of which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction.

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正被编码的当前图片相关联的层间参考图片的存储器。 该装置还包括可操作地耦合到存储器的处理器。 在一个实施例中，处理器被配置为指示用于使用层间预测来预测当前图像的多个层间参考图片。 处理器还被配置为指示哪个层间参考图片用于使用层间预测来预测当前图像。 处理器还被配置为使用层间参考图片的数量的指示和用于预测当前图片的哪个层间参考图片的指示来确定与当前图片相关联的层间参考图片集 使用层间预测。

公开(公告)号：US20140016697A1

公开(公告)日：2014-01-16

申请号：US13801950

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Ye-Kui WANG

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H04N19/31 ,  H04N19/46 ,  H04N19/573 ,  H04N19/70

Abstract: In one example, a device for decoding video data includes a processor configured to decapsulate a slice of a random access point (RAP) picture of a bitstream from a network abstraction layer (NAL) unit, wherein the NAL unit includes a NAL unit type value that indicates whether the RAP picture is of a type that can have associated leading pictures and whether the RAP picture is an instantaneous decoder refresh (IDR) picture or a clean random access (CRA) picture, determine whether the RAP picture can have associated leading pictures based on the NAL unit type value, and decode video data of the bitstream following the RAP picture based on the determination of whether the RAP picture can have associated leading pictures.

Abstract translation: 在一个示例中，用于对视频数据进行解码的设备包括：处理器，被配置为从网络抽象层（NAL）单元对位流的随机接入点（RAP）画面的片段进行解封装，其中，所述NAL单元包括NAL单元类型值 指示RAP图像是否具有可以具有相关联的前导图像的类型，以及RAP图像是瞬时解码器刷新（IDR）图像还是干净随机访问（CRA）图像，确定RAP图像是否可以具有相关联的前导图像 基于NAL单元类型值，并且基于RAP图像是否可以具有相关联的前导图像的确定，对RAP图像之后的比特流的视频数据进行解码。