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    IRAP access units and bitstream switching and splicing
    313.
    发明授权
    IRAP access units and bitstream switching and splicing 有权
    IRAP访问单元和比特流切换和拼接

    公开(公告)号：US09596486B2

    公开(公告)日：2017-03-14

    申请号：US14244743

    申请日：2014-04-03

    Applicant: QUALCOMM Incorporated

    Inventor： Adarsh Krishnan Ramasubramonian ,  Ye-Kui Wang ,  Krishnakanth Rapaka ,  Ying Chen

    IPC: H04N19/103 ,  H04N19/895 ,  H04N21/2343 ,  H04N21/845 ,  H04N21/438

    CPC classification number: H04N19/895 ,  H04N21/234327 ,  H04N21/4384 ,  H04N21/8451 ,  H04N21/8455

    Abstract: In one example, a device for coding video data includes a video coder configured to code an intra random access point (IRAP) picture of a partially aligned IRAP access unit of video data, and code data that indicates, when performing random access from the partially aligned IRAP access unit, at least one picture of a video coding layer that is not correctly decodable. When the video coder comprises a video decoder, the video decoder may skip decoding of the pictures that are not correctly decodable, assuming random access has been performed starting from the partially aligned IRAP access unit.

    Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对视频数据的部分对准的IRAP存取单元的内部随机接入点（IRAP）图像进行编码;以及代码数据，当从部分地对其进行随机访问时， 对准的IRAP访问单元，至少一个不能正确解码的视频编码层的图片。 当视频编码器包括视频解码器时，假设从部分对准的IRAP访问单元开始执行随机访问，视频解码器可以跳过不能正确解码的图像的解码。

    Grouping of tiles for video coding
    314.
    发明授权
    Grouping of tiles for video coding 有权
    分组视频编码

    公开(公告)号：US09584819B2

    公开(公告)日：2017-02-28

    申请号：US13658453

    申请日：2012-10-23

    Applicant: Qualcomm Incorporated

    Inventor： Ye-Kui Wang ,  Ying Chen ,  Muhammed Zeyd Coban ,  Marta Karczewicz

    IPC: H04N7/32 ,  H04N19/436 ,  H04N19/70 ,  H04N19/174 ,  H04N19/17 ,  H04N19/46 ,  H04N19/61 ,  H04N19/895

    CPC classification number: H04N19/436 ,  H04N19/17 ,  H04N19/174 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/895

    Abstract: Techniques described herein for coding video data include techniques for coding pictures partitioned into tiles, in which each of the plurality of tiles in a picture is assigned to one of a plurality of tile groups. One example method for coding video data comprising a picture that is partitioned into a plurality tiles comprises coding video data in a bitstream, and coding, in the bitstream, information that indicates one of a plurality of tile groups to which each of the plurality of tiles is assigned. The techniques for grouping tiles described herein may facilitate improved parallel processing for both encoding and decoding of video bitstreams, improved error resilience, and more flexible region of interest (ROI) coding.

    Abstract translation: 本文描述的用于编码视频数据的技术包括用于对分割成瓦片的图像进行编码的技术，其中将图片中的多个瓦片中的每一个分配给多个瓦片组中的一个。 用于编码视频数据的一个示例性方法包括分割成多个片的图像包括：对比特流中的视频数据进行编码，以及在比特流中编码指示多个瓦片组中的每一个的多个瓦片组之一的信息 被分配。 用于分组的瓦片的技术可以促进对视频比特流的编码和解码的改进的并行处理，改善的错误弹性以及更灵活的感兴趣区域（ROI）编码。

    Cross-layer parallel processing and offset delay parameters for video coding
    315.
    发明授权
    Cross-layer parallel processing and offset delay parameters for video coding 有权
    用于视频编码的跨层并行处理和偏移延迟参数

    公开(公告)号：US09578328B2

    公开(公告)日：2017-02-21

    申请号：US14331004

    申请日：2014-07-14

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

    IPC: H04N19/167 ,  H04N19/50 ,  H04N19/70 ,  H04N19/33 ,  H04N19/436 ,  H04N19/105 ,  H04N19/176 ,  H04N19/187 ,  H04N19/136

    CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/436 ,  H04N19/70

    Abstract: In an example, a method of coding video data includes determining a location of a reference sample associated with a reference picture of video data based on one or more scaled offset values, where the reference picture is included in a first layer of a multi-layer bitstream and the one or more scaled offset values indicate a difference in scale between the first layer and a second, different layer. The method also includes determining a location of a collocated reference block of video data in the first layer based on the location of the reference sample, and coding a current block of video data in the second layer relative to the collocated reference block.

    Abstract translation: 在一个示例中，视频数据的编码方法包括基于一个或多个缩放的偏移值来确定与视频数据的参考图片相关联的参考样本的位置，其中参考图像被包括在多层的第一层中 比特流和一个或多个缩放的偏移值指示第一层和第二不同层之间的比例差异。 该方法还包括基于参考样本的位置来确定第一层中并行的视频数据参考块的位置，以及相对于并置参考块对第二层中的当前视频数据块进行编码。

    Signaling of deblocking filter parameters in video coding
    317.
    发明授权
    Signaling of deblocking filter parameters in video coding 有权
    视频编码中去块滤波器参数的信令

    公开(公告)号：US09538200B2

    公开(公告)日：2017-01-03

    申请号：US13743592

    申请日：2013-01-17

    Applicant: Qualcomm Incorporated

    Inventor： Geert Van der Auwera ,  Ye-Kui Wang ,  Marta Karczewicz

    IPC: H04N7/12 ,  H04N19/70 ,  H04N19/46 ,  H04N19/117 ,  H04N19/174 ,  H04N19/86

    CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/43 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

    Abstract: This disclosure describes techniques for signaling deblocking filter parameters for a current slice of video data with reduced bitstream overhead. Deblocking filter parameters may be coded in one or more of a picture layer parameter set and a slice header. The techniques reduce a number of bits used to signal the deblocking filter parameters by coding a first syntax element that indicates whether deblocking filter parameters are present in both the picture layer parameter set and the slice header, and only coding a second syntax element in the slice header when both sets of deblocking filter parameters are present. Coding the second syntax element is eliminated when deblocking filter parameters are present in only one of the picture layer parameter set or the slice header. The second syntax element indicates which set of deblocking filter parameters to use to define a deblocking filter applied to a current slice.

    Abstract translation: 本公开描述了用于以减少的比特流开销为视频数据的当前切片信令去块滤波器参数的信号的技术。 去块滤波器参数可以在图像层参数集和片头中的一个或多个中被编码。 这些技术通过编码表示去块滤波器参数是否存在于图像层参数集和片头中的第一语法元素来减少用于通知去块滤波器参数的位数，并且仅对切片中的第二语法元素进行编码 当存在两组去块滤波器参数时，头部。 当去块滤波器参数仅存在于图像层参数集或片头中的一个时，消除了第二语法元素的编码。 第二个语法元素指出哪一组去块滤波器参数用于定义应用于当前片的去块滤波器。

    DESIGN OF TRACKS AND OPERATION POINT SIGNALING IN LAYERED HEVC FILE FORMAT
    318.
    发明申请
    DESIGN OF TRACKS AND OPERATION POINT SIGNALING IN LAYERED HEVC FILE FORMAT 审中-公开
    轨迹设计和层状信号在层状文件格式中的操作

    公开(公告)号：US20160373771A1

    公开(公告)日：2016-12-22

    申请号：US15184930

    申请日：2016-06-16

    Applicant: QUALCOMM Incorporated

    Inventor： Fnu Hendry ,  Ye-Kui Wang

    IPC: H04N19/39 ,  H04N19/187

    CPC classification number: H04N19/39 ,  H04N19/187 ,  H04N19/30 ,  H04N19/70

    Abstract: Provided are techniques and systems for generating an output file for multi-layer video data, where the output file is generated according to a file format. Techniques and systems for processing an output file generated according to the file format are also provided. The multi-layer video data may be, for example, video data encoded using a L-HEVC video encoding algorithm. The file format may be based on the ISO base media file format (ISOBMFF). The output file may include a plurality of tracks. Generating the output file may include generating the output file in accordance with a restriction. The restriction may be that each track of the plurality of tracks comprises at most one layer from the multi-layer video data. The output file may also be generated according a restriction that each of the plurality of tracks does not include at least one of an aggregator or an extractor.

    Abstract translation: 提供了用于生成用于多层视频数据的输出文件的技术和系统，其中根据文件格式生成输出文件。 还提供了用于处理根据文件格式生成的输出文件的技术和系统。 多层视频数据可以是例如使用L-HEVC视频编码算法编码的视频数据。 文件格式可以基于ISO基本媒体文件格式（ISOBMFF）。 输出文件可以包括多个轨道。 生成输出文件可以包括根据限制来生成输出文件。 该限制可以是多个轨道的每个轨道包括多层视频数据的至多一层。 还可以根据多个轨道中的每一个不包括聚合器或提取器中的至少一个的限制来生成输出文件。

    Coded picture buffer arrival and nominal removal times in video coding
    319.
    发明授权
    Coded picture buffer arrival and nominal removal times in video coding 有权
    视频编码中的编码图像缓冲器到达和标称去除时间

    公开(公告)号：US09503753B2

    公开(公告)日：2016-11-22

    申请号：US14033348

    申请日：2013-09-20

    Applicant: QUALCOMM Incorporated

    Inventor： Ye-Kui Wang

    IPC: H04N7/26 ,  H04N19/70 ,  H04N19/46 ,  H04N19/196 ,  H04N19/44 ,  H04N19/423 ,  H04N19/85 ,  H04N19/90

    CPC classification number: H04N19/70 ,  H04N19/196 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/85 ,  H04N19/90

    Abstract: A video coding device, such as a video decoder, may be configured to derive at least one of a coded picture buffer (CPB) arrival time and a CPB nominal removal time for an access unit (AU) at both an access unit level and a sub-picture level regardless of a value of a syntax element that defines whether a decoding unit (DU) is the entire AU. The video coding device may further be configured to determine a removal time of the AU based at least in part on one of the CPB arrival time and a CPB nominal removal time and decode video data of the AU based at least in part on the removal time.

    Abstract translation: 诸如视频解码器的视频编码装置可以被配置为在访问单元级别和访问单元级别上导出访问单元（AU）的编码图像缓冲器（CPB）到达时间和CPB额定去除时间中的至少一个 而不管定义解码单元（DU）是否是整个AU的语法元素的值。 视频编码设备还可以被配置为至少部分地基于CPB到达时间和CPB额定去除时间之一来确定AU的去除时间，并且至少部分地基于去除时间来解码AU的视频数据 。

    Motion vector coding and bi-prediction in HEVC and its extensions
    320.
    发明授权
    Motion vector coding and bi-prediction in HEVC and its extensions 有权
    HEVC中的运动矢量编码和双重预测及其扩展

    公开(公告)号：US09503720B2

    公开(公告)日：2016-11-22

    申请号：US13801350

    申请日：2013-03-13

    Applicant: QUALCOMM Incorporated

    Inventor： Ying Chen ,  Ye-Kui Wang ,  Li Zhang

    IPC: H04N7/12 ,  H04N11/02 ,  H04N7/26 ,  H04N19/583 ,  H04N19/597 ,  H04N19/52 ,  H04N19/139 ,  H04N19/70 ,  H04N19/51 ,  H04N19/105

    CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/139 ,  H04N19/52 ,  H04N19/597 ,  H04N19/70

    Abstract: In one example, a device includes a video coder (e.g., a video encoder or a video decoder) configured to determine that a block of video data is to be coded in accordance with a three-dimensional extension of High Efficiency Video Coding (HEVC), and, based the determination that the block is to be coded in accordance with the three-dimensional extension of HEVC, disable temporal motion vector prediction for coding the block. The video coder may be further configured to, when the block comprises a bi-predicted block (B-block), determine that the B-block refers to a predetermined pair of pictures in a first reference picture list and a second reference picture list, and, based on the determination that the B-block refers to the predetermined pair, equally weight contributions from the pair of pictures when calculating a predictive block for the block.

    Abstract translation: 在一个示例中，设备包括被配置为根据高效率视频编码（HEVC）的三维扩展来确定视频数据块要被编码的视频编码器（例如，视频编码器或视频解码器） 并且基于根据HEVC的三维扩展来确定块要被编码的确定，禁止对块进行编码的时间运动矢量预测。 视频编码器还可以被配置为当块包括双预测块（B块）时，确定B块参考第一参考图像列表和第二参考图像列表中的预定图像对， 并且基于当计算块的预测块时，基于B块参考预定对的确定，来自该对图像的同等重量贡献。

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