公开(公告)号：US09674544B2

公开(公告)日：2017-06-06

申请号：US14552129

申请日：2014-11-24

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian ,  Ying Chen

IPC: H04N19/513 ,  H04N19/597 ,  H04N19/70 ,  H04N19/46 ,  H04N19/30 ,  H04N19/68 ,  H04N19/80

CPC classification number: H04N19/513 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/68 ,  H04N19/70 ,  H04N19/80

Abstract: In an example, a method of decoding video data includes decoding data that indicates a picture order count (POC) reset for a POC value of a first picture of a first layer of multi-layer video data, wherein the first picture is included in an access unit. The example method also includes, based on the data that indicates the POC reset for the POC value of the first picture and prior to decoding the first picture, decrementing POC values of all pictures stored to a decoded picture buffer (DPB) that precede the first picture in coding order including at least one picture of a second layer of the multi-layer video data.

公开(公告)号：US09635369B2

公开(公告)日：2017-04-25

申请号：US13932960

申请日：2013-07-01

Applicant: Qualcomm Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang

IPC: H04N7/26 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/124 ,  H04N19/184 ,  H04N19/30 ,  H04N19/51 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

Abstract: A video coder can be configured to receive in a video parameter set, one or more syntax elements that include information related to hypothetical reference decoder (HRD) parameters; receive in the video data a first sequence parameter set that includes a first syntax element identifying the video parameter set; receive in the video data a second sequence parameter set that includes a second syntax element identifying the video parameter set; and, code, based on the one or more syntax elements, a first set of video blocks associated with the first parameter set and second set of video blocks associated with the second parameter set.

公开(公告)号：US20170111650A1

公开(公告)日：2017-04-20

申请号：US15293092

申请日：2016-10-13

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ye-Kui Wang

IPC: H04N19/463 ,  H04N19/187 ,  H04N19/593

CPC classification number: H04N19/463 ,  H04N19/187 ,  H04N19/30 ,  H04N19/593 ,  H04N19/70

Abstract: An apparatus obtains an operation point reference track in the file and one or more additional tracks in the file. No operation point information sample group is signaled in any of the additional tracks. For each respective sample of each respective additional track of the one or more additional tracks, the apparatus determines whether to consider the respective sample part of the operation point information sample group. Based on the operation point reference track not containing a sample that is temporally collocated with the respective sample in the respective additional track, the respective sample in the respective additional track is considered part of an operation point information sample group of the last sample in the operation point reference track before the respective sample of the respective additional track.

公开(公告)号：US09621905B2

公开(公告)日：2017-04-11

申请号：US13841253

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Muhammed Zeyd Coban ,  Ye-Kui Wang

IPC: H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/436 ,  H04N19/46 ,  H04N19/61

CPC classification number: H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques that may enable a video coder to simultaneously implement multiple parallel processing mechanisms, including two or more of wavefront parallel processing (WPP), tiles, and entropy slices. This disclosure describes signaling techniques that are compatible both with coding standards that only allow one parallel processing mechanism to be implemented at a time, but that are also compatible with potential future coding standards that may allow for more than one parallel processing mechanism to be implemented simultaneously. This disclosure also describes restrictions that may enable WPP and tiles to be implemented simultaneously.

公开(公告)号：US20170064339A1

公开(公告)日：2017-03-02

申请号：US15353367

申请日：2016-11-16

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/86 ,  H04N19/61 ,  H04N19/43 ,  H04N19/13 ,  H04N19/105 ,  H04N19/159 ,  H04N19/117 ,  H04N19/124

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。

公开(公告)号：US09584808B2

公开(公告)日：2017-02-28

申请号：US14184633

申请日：2014-02-19

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Jianle Chen ,  Ye-Kui Wang ,  Xiang Li

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/70 ,  H04N19/134 ,  H04N19/187 ,  H04N19/29 ,  H04N19/33

CPC classification number: H04N19/105 ,  H04N19/134 ,  H04N19/187 ,  H04N19/29 ,  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 reference layer (RL) and an enhancement layer, the RL comprising an RL picture having an output region that includes a portion of the RL picture. The processor is configured to determine whether a condition indicates that information outside of the output region is available to predict a current block in the enhancement layer. 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）和增强层相关联的视频信息，RL包括具有包括RL图像的一部分的输出区域的RL图像。 处理器被配置为确定条件是否指示输出区域之外的信息可用于预测增强层中的当前块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US09565431B2

公开(公告)日：2017-02-07

申请号：US13776140

申请日：2013-02-25

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N19/70 ,  H04N19/44 ,  H04N19/46

CPC classification number: H04N19/44 ,  H04N19/46 ,  H04N19/70

Abstract: As one example, a method of coding video data includes storing one or more decoding units of video data in a coded picture buffer (CPB). The method further includes obtaining a respective buffer removal time for the one or more decoding units. The method further includes removing the decoding units from the CPB in accordance with the obtained buffer removal time for each of the decoding units. The method further includes determining whether the CPB operates at access unit level or sub-picture level. The method further includes coding video data corresponding to the removed decoding units. If the CPB operates at access unit level, coding the video data comprises coding access units comprised in the decoding units. If the CPB operates at sub-picture level, coding the video data comprises coding subsets of access units comprised in the decoding units.

Abstract translation: 作为一个示例，编码视频数据的方法包括将视频数据的一个或多个解码单元存储在编码图像缓冲器（CPB）中。 该方法还包括为一个或多个解码单元获得相应的缓冲器去除时间。 该方法还包括根据获得的每个解码单元的缓冲器去除时间从CPB中去除解码单元。 该方法还包括确定CPB是以存取单元级别还是副图像级别操作。 该方法还包括编码与去除的解码单元对应的视频数据。 如果CPB在接入单元级别操作，则对视频数据进行编码包括解码单元中包括的编码存取单元。 如果CPB在子图像级别操作，则对视频数据进行编码包括包含在解码单元中的访问单元的编码子集。

公开(公告)号：US09554146B2

公开(公告)日：2017-01-24

申请号：US13964688

申请日：2013-08-12

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/50 ,  H04N19/70 ,  H04N19/46 ,  H04N19/30 ,  H04N19/61

CPC classification number: H04N19/50 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: In some examples, a video encoder includes multiple sequence parameter set (SPS) IDs in an SEI message, such that multiple active SPSs can be indicated to a video decoder. In some examples, a video decoder activates a video parameter set (VPS) and/or one or more SPSs through referencing an SEI message, e.g., based on the inclusion of the VPS ID and one or more SPS IDs in the SEI message. The SEI message may be, as examples, an active parameter sets SEI message or a buffering period SEI message.

Abstract translation: 在一些示例中，视频编码器在SEI消息中包括多个序列参数集（SPS）ID，使得可以向视频解码器指示多个活动SPS。 在一些示例中，视频解码器通过参考SEI消息来激活视频参数集（VPS）和/或一个或多个SPS，例如，基于在SEI消息中包括VPS ID和一个或多个SPS ID。 作为示例，SEI消息可以是活动参数集SEI消息或缓冲周期SEI消息。

公开(公告)号：US09509999B2

公开(公告)日：2016-11-29

申请号：US14298308

申请日：2014-06-06

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Ye-Kui Wang

IPC: H04N7/26 ,  H04N19/583 ,  H04N19/44 ,  H04N19/105 ,  H04N19/70 ,  H04N19/30 ,  H04N19/82 ,  H04N19/159 ,  H04N19/52

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

Abstract: An apparatus for coding video information according to certain aspects includes computing hardware. The computing hardware is configured to: identify a current picture to be predicted using at least one type of inter layer prediction (ILP), the type of ILP comprising one or more of inter layer motion prediction (ILMP) or inter layer sample prediction (ILSP); and control: (1) a number of pictures that may be resampled and used to predict the current picture using ILMP and (2) a number of pictures that may be resampled and used to predict the current picture using ILSP, wherein the computing hardware is configured to control the number of pictures that may be resampled and used to predict the current picture using ILMP independent of the number of pictures that may be resampled and used to predict the current picture using ILSP.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括计算硬件。 计算硬件被配置为：使用至少一种类型的层间预测（ILP）来识别要预测的当前图像，包括层间运动预测（ILMP）或层间样本预测（ILSP）中的一个或多个的ILP的类型 ）; 并且控制：（1）可以重新采样并用于使用ILMP来预测当前图像的数量的图像;以及（2）可重新采样并用于使用ILSP预测当前图像的多个图像，其中计算硬件是 被配置为控制可以被重新采样并用于使用ILMP来预测当前图像的图像数量，而不依赖于可以重采样并用于使用ILSP预测当前图像的图像数量。

公开(公告)号：US09491456B2

公开(公告)日：2016-11-08

申请号：US14033191

申请日：2013-09-20

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/00 ,  H04N19/423 ,  H04N19/196 ,  H04N19/85 ,  H04N19/44 ,  H04N19/70 ,  H04N19/46 ,  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 encoder or a video decoder, may be configured to code a sub-picture timing supplemental enhancement information (SEI) message associated with a first decoding unit (DU) of an access unit (AU). The video coding device may further code a duration between coded picture buffer (CPB) removal time of a second DU of the AU in decoding order and CPB removal time of the first DU in the sub-picture SEI message. The coding device may also derive a CPB removal time of the first DU based at least in part on the sub-picture timing SEI message.

Abstract translation: 诸如视频编码器或视频解码器的视频编码装置可以被配置为对与存取单元（AU）的第一解码单元（DU）相关联的子图像定时补充增强信息（SEI）消息进行编码。 视频编码装置还可以在解码顺序中对AU的第二DU的编码图像缓冲器（CPB）去除时间和子画面SEI消息中的第一DU的CPB去除时间之间的持续时间进行编码。 编码装置还可以至少部分地基于子图像定时SEI消息导出第一DU的CPB去除时间。