公开(公告)号：US20190141320A1

公开(公告)日：2019-05-09

申请号：US16182364

申请日：2018-11-06

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui WANG ,  Wei-Jung CHIEN ,  Yi-Wen CHEN ,  Marta KARCZEWICZ

IPC: H04N19/115 ,  H04N19/137 ,  H04N19/177 ,  H04N19/172

Abstract: A coding device configured to code video data that includes a buffer memory configured to store pictures of the video data and a at least one processor implemented in circuitry that is in communication with the buffer memory such that the processor is configured to code at least two pictures of a single coded video sequence (CVS) of the video data where each picture of the at least two pictures is associated with an identical picture order count (POC) value and where the at least two pictures are different from one another, associate respective data with each of the at least two pictures of the single CVS, and identify, for inclusion in a reference picture set, at least one picture among the at least two pictures based on the identical POC value associated with the at least two pictures and the respective data associated with the at least one picture.

公开(公告)号：US20190012839A1

公开(公告)日：2019-01-10

申请号：US16025801

申请日：2018-07-02

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui WANG

IPC: G06T19/00 ,  H04N5/232

Abstract: Systems and methods are provided for specifying regional information such as a source and nature of a recommend viewport and a priority among multiple recommended viewports. Virtual reality video data can represent a 360-degree view of a virtual environment. In various examples, a region of the virtual reality video data can be determined, where the region includes a sub-section of the 360-degree view. A data structure can be generated for the region, where the data structure includes parameters that describe the region. The parameters can include a source associated with the region. The virtual reality video data and the data structure can be stored in a file.

公开(公告)号：US20150358640A1

公开(公告)日：2015-12-10

申请号：US14730041

申请日：2015-06-03

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/547 ,  H04N19/61 ,  H04N19/44

CPC classification number: H04N19/547 ,  H04N19/30 ,  H04N19/44 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70

Abstract: Video data bitstreams may contain bitstream conformance parameters, such as hypothetical reference decoder (HRD) parameters, which may be used to allow a decoder to test the conformance of a received bitstream. In multi-layer codecs transmitted using partitions, the video data may be associated with one or more layer sets. Each layer set may be associated with one or more output layer sets. Each output layer set may be further associated with one or more partitioning schemes. Conformance parameters are mapped to partitions of a partitioning scheme, based upon the output layer set that the partitioning scheme is associated with. This allows for a partition to be associated with different conformance parameters, depending upon the output layer set that is being used.

Abstract translation: 视频数据比特流可以包含比特流一致性参数，诸如假设参考解码器（HRD）参数，其可以用于允许解码器测试接收的比特流的一致性。 在使用分区传输的多层编解码器中，视频数据可以与一个或多个层集相关联。 每个层集合可以与一个或多个输出层集相关联。 每个输出层集合可以进一步与一个或多个分区方案相关联。 基于分区方案相关联的输出层集，将一致性参数映射到分区方案的分区。 这允许分区与不同的一致性参数相关联，这取决于正在使用的输出层集。

公开(公告)号：US20150195545A1

公开(公告)日：2015-07-09

申请号：US14584351

申请日：2014-12-29

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui WANG ,  Ying CHEN

IPC: H04N19/187 ,  H04N19/146 ,  H04N19/103 ,  H04N19/186

CPC classification number: H04N19/187 ,  H04N19/103 ,  H04N19/146 ,  H04N19/172 ,  H04N19/186 ,  H04N19/423 ,  H04N19/70

Abstract: An apparatus for coding video information according to certain aspects includes a processor configured to determine a value of a flag associated with a current picture of a current layer to be decoded, the flag indicating whether pictures in a decoded picture buffer (DPB) should be output, wherein the current picture is an intra random access point (TRAP) picture that starts a new coded video sequence (CVS) and wherein the determination of the value of the flag is based on at least one of: (1) the chroma format of the current picture and the chroma format of the preceding picture, (2) the bit depth of the luma samples of the current picture and the bit depth of the luma samples of the preceding picture, or (3) the bit depth of the chroma samples of the current picture and the bit depth of the chroma samples of the preceding 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处理器，被配置为确定与要解码的当前图像的当前图像相关联的标志的值，指示是否应当输出解码图像缓冲器（DPB）中的图像的标志 ，其中当前图像是开始新的编码视频序列（CVS）的帧内随机接入点（TRAP）图像，并且其中所述标志的值的确定基于以下中的至少一个：（1） 前一图像的当前图像和色度格式，（2）当前图像的亮度样本的比特深度和前一图像的亮度样本的比特深度，或者（3）色度样本的比特深度 的当前图像和前一图像的色度采样的位深度。

公开(公告)号：US20150103928A1

公开(公告)日：2015-04-16

申请号：US14514153

申请日：2014-10-14

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Adarsh Krishnan RAMASUBRAMONIAN ,  Ye-Kui WANG

IPC: H04N19/33 ,  H04N19/174 ,  H04N19/46

CPC classification number: H04N19/33 ,  H04N19/174 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  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 reference layer (RL) and an enhancement layer (EL), the RL having an RL picture in a first access unit, and the EL having a first EL picture in the first access unit, wherein the first EL picture is associated with a first set of parameters. The processor is configured to determine whether the first EL picture is an intra random access point (IRAP) picture, determine whether the first access unit immediately follows a splice point where first video information is joined with second video information including the first EL picture, and perform, based on the determination of whether the first EL picture is an intra random access point (IRAP) picture and whether the first access unit immediately follows a splice point, one of (1) refraining from associating the first EL picture with a second set of parameters that is different from the first set of parameters, or (2) associating the first EL picture with a second set of parameters that is different from the first set of parameters. 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参考层（RL）和增强层（EL）相关联的视频信息，RL在第一存取单元中具有RL图像，并且EL在第一存取单元中具有第一EL图像 ，其中所述第一EL图像与第一组参数相关联。 处理器被配置为确定第一EL图像是否是内部随机接入点（IRAP）图像，确定第一存取单元是否紧接着第一视频信息与包括第一EL图像的第二视频信息相连接的拼接点，以及 执行基于第一EL图像是否是内部随机接入点（IRAP）图像的确定以及第一存取单元是否紧跟在拼接点之后，（1）避免将第一EL图像与第二组相关联 的参数不同于第一组参数，或者（2）将第一EL图像与不同于第一组参数的第二组参数相关联。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20150103922A1

公开(公告)日：2015-04-16

申请号：US14512962

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/187

CPC classification number: H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/68 ,  H04N19/70 ,  H04N19/80 ,  H04N19/86

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 video layer having a first picture. The processor is configured to process picture order count (POC) derivation information associated with the first picture, and determine, based on the POC derivation information associated with the first picture, a POC value of at least one other picture in the first video layer that precedes the first picture in decoding order. 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具有第一图像的第一视频层相关联的视频信息。 处理器被配置为处理与第一图像相关联的图像顺序计数（POC）导出信息，并且基于与第一图像相关联的POC推导信息，确定第一视频层中的至少一个其他图像的POC值， 先于解码顺序的第一张图片。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20150103904A1

公开(公告)日：2015-04-16

申请号：US14513089

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Jianle CHEN ,  Fnu HENDRY

IPC: H04N19/44

CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

Abstract: Systems and methods for inter-layer reference picture set derivation based on sub-layer reference prediction dependency are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store one or more direct reference layer pictures of one or more current pictures in a sequence, wherein the one or more current pictures are associated with a current layer, the current layer being associated with the one or more direct reference layers. The video encoder further comprises a processor in communication with the memory unit. The memory unit is configured to set an indication associated with a current picture to indicate whether all of the one or more direct reference layer pictures of the current picture that are not restricted for use in inter-layer prediction are included in an inter-layer reference picture set associated with the current picture.

Abstract translation: 本文描述了基于子层参考预测依赖性的层间参考图像集导出的系统和方法。 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一个或多个当前图像的序列中的一个或多个直接参考图像图像的存储器，其中所述一个或多个当前图像与当前层相关联 当前层与该一个或多个直接参考层相关联。 视频编码器还包括与存储器单元通信的处理器。 存储器单元被配置为设置与当前图像相关联的指示，以指示是否将不限于在层间预测中使用的当前图片的一个或多个直接参考图像图片全部包括在层间参考中 与当前图片相关联的图片集。

公开(公告)号：US20150010051A1

公开(公告)日：2015-01-08

申请号：US14318230

申请日：2014-06-27

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/105 ,  H04N19/196 ,  H04N19/187

CPC classification number: H04N19/105 ,  H04N19/174 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

Abstract: A method of coding video data includes receiving one or more layers of video information. Each layer may include at least one picture. The method can include determining a number of active reference layer pictures associated with at least one picture of the one or more layers. The method can further include determining a number of direct reference layers associated with the at least one of the one or more layers. Based on the number of direct reference layers equaling the number of active reference layer pictures, the method can further include refraining from further signaling inter-layer reference picture information in any video slice associated with at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS). Additionally or alternatively, based on the number of direct reference layers equaling the number of active reference layer pictures, the method can include adding to the inter-layer reference picture set all direct reference layer pictures for any video slice associated with at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS).

Abstract translation: 一种编码视频数据的方法包括接收一层或多层视频信息。 每个层可以包括至少一个图片。 该方法可以包括确定与一个或多个层的至少一个图片相关联的多个活动参考图层图片。 该方法还可以包括确定与一个或多个层中的至少一个层相关联的多个直接参照层。 基于等于有效参考层图像数量的直接参考层的数量，该方法还可以包括在与视频参数集（VPS）中的至少一个相关联的任何视频片段中避免进一步的信令层间参考图像信息， 序列参数集（SPS）或图像参数集（PPS）。 附加地或替代地，基于等于有效参考层图像的数量的直接参考层的数量，该方法可以包括向层间参考图像集合添加与以下各项中的至少一个相关联的任何视频片段的所有直接参考图像图像： 视频参数集（VPS），序列参数集（SPS）或图像参数集（PPS）。

公开(公告)号：US20140362910A1

公开(公告)日：2014-12-11

申请号：US14298555

申请日：2014-06-06

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ye-Kui WANG

IPC: H04N19/109 ,  H04N19/51 ,  H04N19/172

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/30 ,  H04N19/52 ,  H04N19/70 ,  H04N19/82

Abstract: An apparatus for coding video information may include computing hardware configured to: when a current picture is to be predicted using at least inter layer motion prediction (ILMP): process a collocated reference index value associated with the current picture, wherein the collocated reference index value indicates a first reference picture that is used in predicting the current picture using inter layer prediction (ILP); and determine whether the first reference picture indicated by the collocated reference index value is enabled for ILMP; when the current picture is to be predicted using at least inter layer sample prediction (ILSP): process a reference index value associated with a block in the current picture, wherein the reference index value indicates a second reference picture that is used in predicting the block in the current picture using ILP; and determine whether the second reference picture indicated by the reference index value is enabled for ILSP.

Abstract translation: 一种用于对视频信息进行编码的装置可以包括：计算硬件，被配置为：当使用至少帧间运动预测（ILMP）来预测当前图像时：处理与当前图像相关联的并置参考索引值，其中并置参考索引值 表示使用层间预测（ILP）来预测当前图像的第一参考图像; 并且确定由并置的参考索引值指示的第一参考图片是否被使能为ILMP; 当使用至少中间层样本预测（ILSP）来预测当前图像时：处理与当前图片中的块相关联的参考索引值，其中参考索引值指示用于预测块的第二参考图片 在当前图片中使用ILP; 并且确定由参考索引值指示的第二参考图片是否对ILSP启用。

公开(公告)号：US20140098895A1

公开(公告)日：2014-04-10

申请号：US13954712

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui WANG

IPC: H04N7/26

CPC classification number: H04N19/46 ,  H04N19/30 ,  H04N19/463 ,  H04N19/70

Abstract: A video encoder signals, in an encoded video bitstream, a video parameter set (VPS) that includes a plurality of Hypothetical Reference Decoder (HRD) parameter syntax structures that each include HRD parameters. For each respective HRD parameter syntax structure in the plurality of HRD parameter syntax structures, the VPS further includes a syntax element indicating whether the HRD parameters of the respective HRD parameter syntax structure include a common set of HRD parameters in addition to a set of sub-layer-specific HRD parameter information specific to a particular sub-layer of the encoded video bitstream. The common set of HRD parameters is common to all sub-layers of the encoded video bitstream. A video decoder or other device decodes, from the encoded video bitstream, the VPS and performs an operation using the HRD parameters of at least one of the HRD parameter syntax structures.

Abstract translation: 视频编码器在经编码的视频比特流中，信号包括包括HRD参数的多个假设参考解码器（HRD）参数语法结构的视频参数集（VPS）。 对于多个HRD参数语法结构中的每个相应的HRD参数语法结构，VPS还包括语法元素，该语法元素指示相应的HRD参数语法结构的HRD参数是否包括除了一组子集之外的HRD参数的公共集合， 特定于编码视频比特流的特定子层的层特定HRD参数信息。 公共的HRD参数集合对编码视频比特流的所有子层是共同的。 视频解码器或其他设备从编码视频比特流解码VPS并使用HRD参数语法结构中的至少一个的HRD参数来执行操作。