公开(公告)号：US09479776B2

公开(公告)日：2016-10-25

申请号：US13929052

申请日：2013-06-27

Applicant: Qualcomm Incorporated

Inventor： Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N7/32 ,  H04N19/50 ,  H04N19/70 ,  H04N19/463 ,  H04N19/58

CPC classification number: H04N19/50 ,  H04N19/463 ,  H04N19/58 ,  H04N19/70

Abstract: In one example, a device for decoding video data includes a video decoder configured to decode a value representative of a difference between most significant bits (MSBs) of a reference picture order count (POC) value and MSBs of a long-term reference picture (LTRP) POC value, wherein the reference POC value corresponds to a picture for which data must have been received in order to properly decode a current picture, determine the MSBs of the LTRP POC value based on the decoded value and the reference POC value, and decode at least a portion of the current picture relative to the LTRP based at least in part on the LTRP POC value. The picture for which data must have been received in order to properly decode a current picture may correspond to the current picture itself or a most recent random access point (RAP) picture.

Abstract translation: 在一个示例中，用于解码视频数据的设备包括：视频解码器，被配置为对表示参考图像顺序计数（POC）值的最高有效位（MSB）与长期参考图像的MSB之间的差异的值进行解码; LTRP）POC值，其中参考POC值对应于必须接收数据的图像以便正确解码当前图像，基于解码值和参考POC值确定LTRP POC值的MSB，以及 至少部分地基于LTRP POC值来解码当前图片相对于LTRP的至少一部分。 为了正确地解码当前画面而必须接收数据的画面可对应于当前画面本身或最近的随机存取点（RAP）画面。

公开(公告)号：US09467700B2

公开(公告)日：2016-10-11

申请号：US14247066

申请日：2014-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/91 ,  H04N19/597 ,  H04N19/70 ,  H04N19/46 ,  H04N19/513 ,  H04N19/30 ,  H04N19/44 ,  H04N19/29

CPC classification number: H04N19/91 ,  H04N19/29 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/597 ,  H04N19/70

Abstract: Systems, methods, and devices for coding multilayer video data are disclosed that may include encoding, decoding, transmitting, or receiving multilayer video data. The systems, methods, and devices may receive or transmit a non-entropy coded representation format within a video parameter set (VPS). The systems, methods, and devices may code (encode or decode) video data based on the non-entropy coded representation format within the VPS, wherein the representation format includes one or more of chroma format, whether different color planes are separately coded, picture width, picture height, luma bit depth, and chroma bit depth.

Abstract translation: 公开了用于编码多层视频数据的系统，方法和设备，其可以包括编码，解码，发送或接收多层视频数据。 系统，方法和设备可以在视频参数集（VPS）内接收或发送非熵编码的表示格式。 系统，方法和设备可以基于VPS内的非熵编码的表示格式对视频数据进行编码（编码或解码），其中表示格式包括色度格式中的一种或多种，​​不同的颜色平面是否被分别编码，图像 宽度，图片高度，亮度位深度和色度位深度。

公开(公告)号：US20160234536A1

公开(公告)日：2016-08-11

申请号：US15019804

申请日：2016-02-09

Applicant: QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Ye-Kui Wang

IPC: H04N21/2381 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L65/4076 ,  H04L65/607 ,  H04L67/02 ,  H04N21/234327 ,  H04N21/26258 ,  H04N21/26616 ,  H04N21/4384 ,  H04N21/44016 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/85406

Abstract: A client device includes one or more processors configured to determine, from a manifest file, a plurality of types of segments included in a representation of media content, one or more functions provided by each of the types of segments, and positions of segments conforming to each of the types of segments in the representation, wherein at least one of the types of segments provides a point at which to begin retrieving data from the representation, determine, from the manifest file, a segment of the representation conforming to the type that provides the point at which to begin retrieving data from the representation, and retrieve the determined segment from the representation.

Abstract translation: 客户端设备包括一个或多个处理器，其被配置为从清单文件确定包括在媒体内容的表示中的多种类型的片段，由每个片段类型提供的一个或多个功能，以及符合 表示中的每个类型的段，其中段的类型中的至少一个提供开始从表示检索数据的点，从清单文件确定符合提供的类型的表示的段 开始从表示中检索数据的点，并从表示中检索确定的段。

公开(公告)号：US09380305B2

公开(公告)日：2016-06-28

申请号：US14242679

申请日：2014-04-01

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Ye-Kui Wang ,  Ying Chen ,  Jianle Chen ,  Adarsh Krishnan Ramasubramonian ,  Marta Karczewicz

IPC: H04N11/02 ,  H04N19/105 ,  H04N19/597 ,  H04N19/30 ,  H04N19/136 ,  H04N19/187

CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/187 ,  H04N19/30 ,  H04N19/597

Abstract: An apparatus for decoding video information according to certain aspects includes a memory unit and a processor operationally coupled to the memory unit. The memory unit is configured to store at least one reference picture list of an enhancement layer, the at least one reference picture list comprising residual prediction reference picture information. The processor is configured to: decode signaled information about residual prediction reference picture generation; generate a residual prediction reference picture based on an enhancement layer reference picture and the decoded signaled information such that the generated residual prediction reference picture has the same motion field and the same picture order count (POC) as the enhancement layer reference picture from which it is generated; and store the generated residual prediction reference picture in the at least one reference picture list of the enhancement layer.

Abstract translation: 根据某些方面的用于解码视频信息的装置包括存储器单元和可操作地耦合到存储器单元的处理器。 存储器单元被配置为存储增强层的至少一个参考图像列表，该至少一个参考图像列表包括残留预测参考图像信息。 处理器被配置为：解码关于残差预测参考图片生成的信号信息; 基于增强层参考图像和解码信号信息生成残差预测参考图像，使得所生成的残差预测参考图像具有与其相同的运动场和与其相同的图像顺序计数（POC） 生成的 并将生成的残差预测参考图像存储在增强层的至少一个参考图像列表中。

公开(公告)号：US09369710B2

公开(公告)日：2016-06-14

申请号：US13759905

申请日：2013-02-05

Applicant: Qualcomm Incorporated

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

IPC: H04N7/26 ,  H04N13/00 ,  H04N19/61 ,  H04N19/105 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/174 ,  H04N19/573

CPC classification number: H04N19/61 ,  H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46 ,  H04N19/573 ,  H04N19/70

Abstract: A video coder may, in some cases, signal whether one or more initial reference picture lists are to be modified. When an initial list is to be modified, the video coder can signal information indicating a starting position in the initial reference picture list. When the starting position signaled by the video coder is less than a number of pictures included in the initial reference picture list, then the video coder signals the number of pictures to be inserted into the initial reference picture list, and a reference picture source from which a picture can be retrieved to insert into the initial reference picture list to construct a modified reference picture list.

Abstract translation: 在一些情况下，视频编码器可以发信号通知是否修改一个或多个初始参考图片列表。 当要修改初始列表时，视频编码器可以在初始参考图片列表中发送指示起始位置的信息。 当由视频编码器发信号的开始位置小于包括在初始参考图像列表中的图像数量时，视频编码器将要插入的图像的数量信号发送到初始参考图像列表，以及参考图像源， 可以检索图片以插入到初始参考图片列表中以构建修改的参考图片列表。

公开(公告)号：US09319703B2

公开(公告)日：2016-04-19

申请号：US13954712

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N7/26 ,  H04N19/46 ,  H04N19/70 ,  H04N19/30 ,  H04N19/463

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。

公开(公告)号：US09264717B2

公开(公告)日：2016-02-16

申请号：US13664279

申请日：2012-10-30

Applicant: Qualcomm Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang ,  Jianle Chen

IPC: H04N19/107 ,  H04N19/70 ,  H04N19/172 ,  H04N19/132 ,  H04N19/177 ,  H04N19/44 ,  H04N19/423 ,  H04N19/573

CPC classification number: H04N19/172 ,  H04N19/107 ,  H04N19/132 ,  H04N19/177 ,  H04N19/423 ,  H04N19/44 ,  H04N19/463 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

Abstract: As one example, techniques for decoding video data include receiving a bitstream that includes one or more pictures of a coded video sequence (CVS), decoding a first picture according to a decoding order, wherein the first picture is a random access point (RAP) picture that is not an instantaneous decoding refresh (IDR) picture, and decoding at least one other picture following the first picture according to the decoding order based on the decoded first picture. As another example, techniques for encoding video data include generating a bitstream that includes one or more pictures of a CVS, wherein a first picture according to the decoding order is a RAP picture that is not an IDR picture, and avoiding including at least one other picture, other than the first picture, that corresponds to a leading picture associated with the first picture, in the bitstream.

Abstract translation: 作为一个示例，用于解码视频数据的技术包括接收包括编码视频序列（CVS）的一个或多个图像的比特流，根据解码顺序解码第一图像，其中第一图像是随机接入点（RAP） 图像，其不是瞬时解码刷新（IDR）图像，并且基于解码的第一图像根据解码顺序对第一图像之后的至少一个其他图像进行解码。 作为另一示例，用于编码视频数据的技术包括生成包括CVS的一个或多个图片的比特流，其中根据解码顺序的第一图片是不是IDR图片的RAP图片，并且避免包括至少一个其他 在比特流中对应于与第一图像相关联的前导图像的第一图像之外的图像。

公开(公告)号：US20150381997A1

公开(公告)日：2015-12-31

申请号：US14749561

申请日：2015-06-24

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/187 ,  H04N19/129

CPC classification number: H04N19/174 ,  H04N19/129 ,  H04N19/187 ,  H04N19/196 ,  H04N19/30 ,  H04N19/40 ,  H04N19/423 ,  H04N19/44 ,  H04N19/513 ,  H04N19/70

Abstract: A device for decoding video data includes a memory configured to store at least a portion of a bitstream of multi-layer video data and one or more processors configured to receive a first access unit delimiter (AUD) network abstraction layer (NAL) unit for a first access unit, wherein a layer identifier for the first AUD NAL unit is equal to zero; receive a second AUD NAL unit for the first access unit, wherein a layer identifier for the second AUD NAL unit is greater than zero; and decode the first access unit.

Abstract translation: 用于对视频数据进行解码的设备包括被配置为存储多层视频数据的比特流的至少一部分的存储器和被配置为接收第一接入单元定界符（AUD）网络抽象层（NAL）单元的一个或多个处理器， 第一访问单元，其中第一个AUD NAL单元的层标识符等于零; 接收用于所述第一存取单元的第二AUD NAL单元，其中所述第二AUD NAL单元的层标识符大​​于零; 并解码第一存取单元。

公开(公告)号：US20150381996A1

公开(公告)日：2015-12-31

申请号：US14749526

申请日：2015-06-24

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/187 ,  H04N19/423 ,  H04N19/70 ,  H04N19/44

CPC classification number: H04N19/174 ,  H04N19/129 ,  H04N19/187 ,  H04N19/196 ,  H04N19/30 ,  H04N19/40 ,  H04N19/423 ,  H04N19/44 ,  H04N19/513 ,  H04N19/70

Abstract: A device for processing video data includes a memory configured to store at least a portion of a multi-layer bitstream of video data; and one or more processors configured to receive the portion of the multi-layer bitstream, the multi-layer bitstream comprising a plurality of layers, the plurality of layers comprising a non-independently decodable non-base layer (non-INBL) and an independently decodable non-base layer (INBL); receive a video parameter set (VPS) associated with the coded video data, the VPS comprising first representation format parameters; receive a sequence parameter set (SPS) associated with the INBL, the SPS comprising second representation format parameters; process the non-INBL based on the first representation format parameters; and process the INBL based on the second representation format parameters.

Abstract translation: 一种用于处理视频数据的设备包括被配置为存储视频数据的多层比特流的至少一部分的存储器; 以及配置成接收所述多层比特流的所述部分的一个或多个处理器，所述多层比特流包括多个层，所述多个层包括非独立可解码的非基本层​​（非INBL）和独立地 可解码非基层（INBL）; 接收与所述编码视频数据相关联的视频参数集（VPS），所述VPS包括第一表示格式参数; 接收与所述INBL相关联的序列参数集（SPS），所述SPS包括第二表示格式参数; 基于第一表示格式参数处理非INBL; 并基于第二表示格式参数处理INBL。

公开(公告)号：US20150373377A1

公开(公告)日：2015-12-24

申请号：US14743632

申请日：2015-06-18

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian ,  FNU Hendry

IPC: H04N19/70 ,  H04N19/58 ,  H04N19/152 ,  H04N19/573

CPC classification number: H04N19/52 ,  H04N19/124 ,  H04N19/152 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/187 ,  H04N19/30 ,  H04N19/573 ,  H04N19/58 ,  H04N19/597 ,  H04N19/70

Abstract: Systems and methods for coding video data are disclosed. The method can include determining a reference picture set (RPS) for a current picture based on one or more reference pictures. The method can also include determining a picture order count (POC) value of each reference picture of the RPS and identifying at least one of a number of long-term reference pictures and a number of short-term reference pictures within the RPS. The method can also include applying constraints to the number of long-term pictures and the number of short-term pictures in the RPS, the constraints being based on the POC value and a maximum decoded picture buffer size minus one, if a video sequence parameter (VPS) extension is in use. The method can include generating at least one syntax element identifying the RPS based on the constraints and encoding the current picture based on the at least one syntax element.

Abstract translation: 公开了用于编码视频数据的系统和方法。 该方法可以包括基于一个或多个参考图片确定当前图片的参考图片集（RPS）。 该方法还可以包括确定RPS的每个参考图像的图像顺序计数（POC）值，并且识别RPS内的多个长期参考图像和短期参考图像中的至少一个。 该方法还可以包括对RPS的长期图像的数量和短期图像的数量应用约束，如果视频序列参数，约束是基于POC值和最大解码图像缓冲器大小减去一个 （VPS）扩展正在使用中。 该方法可以包括基于约束生成识别RPS的至少一个语法元素，并基于至少一个语法元素对当前图片进行编码。