公开(公告)号：US09241158B2

公开(公告)日：2016-01-19

申请号：US13918093

申请日：2013-06-14

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/04 ,  H04N11/02 ,  H04N19/136 ,  H04N19/70 ,  H04N19/149 ,  H04N19/152 ,  H04N19/44 ,  H04N19/31

CPC classification number: H04N19/136 ,  H04N19/149 ,  H04N19/152 ,  H04N19/31 ,  H04N19/44 ,  H04N19/70

Abstract: A device performs a hypothetical reference decoder (HRD) operation that determines conformance of a bitstream to a video coding standard or determines conformance of a video decoder to the video coding standard. As part of performing the HRD operation, the device determines a highest temporal identifier of a bitstream-subset associated with a selected operation point of the bitstream. Furthermore, as part of the HRD operation, the device determines, based on the highest temporal identifier, a particular syntax element from among an array of syntax elements. The device then uses the particular syntax element in the HRD operation.

Abstract translation: 设备执行假定参考解码器（HRD）操作，其确定比特流对视频编码标准的一致性或者确定视频解码器与视频编码标准的一致性。 作为执行HRD操作的一部分，设备确定与比特流的所选操作点相关联的比特流子集的最高时间标识符。 此外，作为HRD操作的一部分，设备基于最高时间标识符，从语法元素数组中确定特定语法元素。 然后，设备将使用HRD操作中的特定语法元素。

公开(公告)号：US20150373376A1

公开(公告)日：2015-12-24

申请号：US14743613

申请日：2015-06-18

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/70 ,  H04N19/597 ,  H04N19/513 ,  H04N19/30 ,  H04N19/44

CPC classification number: H04N19/146 ,  H04N19/184 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/513 ,  H04N19/597 ,  H04N19/70

Abstract: Techniques and systems are provided for encoding and decoding video data. For example, a method of decoding video data includes accessing an encoded video bitstream encoded according to a first coding protocol. The encoded video bitstream includes one or more enhancement layers and a video parameter set defining parameters of the encoded video bitstream. The method further includes determining that a syntax element indicative of a number of video signal information syntax structures provided in the encoded video bitstream is not present in the video parameter set. The method further includes determining whether a base layer is included in the encoded video bitstream or to be received from an external source. The method further includes determining the number of video signal information syntax structures included in the video parameter set to be a first value or a second value based on whether the base layer is included in the encoded video bitstream or to be received from the external source.

Abstract translation: 提供技术和系统用于对视频数据进行编码和解码。 例如，解码视频数据的方法包括访问根据第一编码协议编码的编码视频位流。 编码视频比特流包括一个或多个增强层和定义编码视频位流参数的视频参数集。 该方法还包括确定在视频参数集中不存在指示编码视频比特流中提供的视频信号信息语法结构的数量的语法元素。 该方法还包括确定基本层是包括在编码视频比特流中还是被从外部源接收。 该方法还包括基于基本层是包括在编码视频比特流中还是从外部源接收来确定包括在视频参数中的视频信号信息语法结构的数量为第一值或第二值。

公开(公告)号：US20150373333A1

公开(公告)日：2015-12-24

申请号：US14742468

申请日：2015-06-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/187 ,  H04N19/184 ,  H04N19/31 ,  H04N19/44

CPC classification number: H04N19/136 ,  H04N19/119 ,  H04N19/184 ,  H04N19/187 ,  H04N19/188 ,  H04N19/196 ,  H04N19/30 ,  H04N19/31 ,  H04N19/44 ,  H04N19/59 ,  H04N19/70

Abstract: Techniques and systems are provided for encoding video data. For example, a method of encoding video data includes generating, by an encoder, an encoded video bitstream according to a first coding protocol. The encoded video bitstream includes one or more enhancement layers and a video parameter set defining parameters of the encoded video bitstream. The method further includes determining that a base layer is to be provided to a decoding device by an external source and is not to be provided as part of the encoded video bitstream. The method further includes assigning a minimum value to a syntax structure in the video parameter set when it is determined that the base layer is to be provided by the external source. The syntax structure defines profile, tier, and level parameters for the base layer.

Abstract translation: 提供了用于编码视频数据的技术和系统。 例如，编码视频数据的方法包括由编码器根据第一编码协议生成编码视频位流。 编码视频比特流包括一个或多个增强层和定义编码视频位流参数的视频参数集。 该方法还包括确定基本层将被外部源提供给解码设备，并且不被提供为编码视频比特流的一部分。 该方法还包括当确定要由外部源提供基本层时，为视频参数集中的语法结构分配最小值。 语法结构定义了基础层的配置文件，层和级别参数。

公开(公告)号：US20150319449A1

公开(公告)日：2015-11-05

申请号：US14700982

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/44 ,  H04N19/48

CPC classification number: H04N21/4516 ,  H04N19/127 ,  H04N19/157 ,  H04N19/187 ,  H04N19/29 ,  H04N19/30 ,  H04N19/39 ,  H04N19/436 ,  H04N19/44 ,  H04N19/48 ,  H04N19/66 ,  H04N19/70 ,  H04N19/85 ,  H04N21/234327 ,  H04N21/816

Abstract: A video decoder is configured to decode a bitstream that comprises an encoded representation of video data. As part of decoding the bitstream, the video decoder obtains, from the bitstream, one or more syntax elements indicating one or more partitioning schemes. For each respective partitioning scheme of the one or more partitioning schemes, the respective partitioning scheme specifies a respective set of disjoint partitions whose union forms an output layer set. Each respective partition of the respective set of disjoint partitions contains one or more of the layers. The video decoder is further configured to decode each of the partitions of a particular partitioning scheme using different processing cores in a plurality of hardware cores, the particular partitioning scheme being one of the one or more partitioning schemes.

Abstract translation: 视频解码器被配置为对包括视频数据的编码表示的比特流进行解码。 作为对比特流进行解码的一部分，视频解码器从比特流获得指示一个或多个分割方案的一个或多个语法元素。 对于一个或多个分区方案的每个相应的分区方案，相应的分区方案指定相互组合的不相交分区，其组合形成输出层集合。 相应组的不相交分区的每个相应分区包含一个或多个层。 视频解码器还被配置为使用多个硬件核心中的不同处理核心对特定分区方案的每个分区进行解码，该特定分区方案是一个或多个分区方案之一。

公开(公告)号：US09137547B2

公开(公告)日：2015-09-15

申请号：US14473897

申请日：2014-08-29

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。

公开(公告)号：US20150195578A1

公开(公告)日：2015-07-09

申请号：US14591649

申请日：2015-01-07

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/172

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/30 ,  H04N19/423 ,  H04N19/44 ,  H04N21/234327 ,  H04N21/236 ,  H04N21/2401 ,  H04N21/44004 ,  H04N21/8451

Abstract: A video decoder assembles, in a buffer model, an access unit from a plurality of elementary streams of a video data stream. The video data stream may be a transport stream or a program stream. The same buffer model is used regardless of whether the elementary streams contain Scalable High Efficiency Video Coding (SHVC), Multi-View HEVC (MV-HEVC), or 3D-HEVC bitstreams. Furthermore, the video decoder decodes the access unit.

Abstract translation: 视频解码器在缓冲器模型中组合来自视频数据流的多个基本流的访问单元。 视频数据流可以是传输流或节目流。 无论基本流是否包含可扩展高效率视频编码（SHVC），多视图HEVC（MV-HEVC）或3D-HEVC比特流，都使用相同的缓冲区模型。 此外，视频解码器解码存取单元。

公开(公告)号：US20150195555A1

公开(公告)日：2015-07-09

申请号：US14584993

申请日：2014-12-29

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/46 ,  H04N19/52

CPC classification number: H04N19/46 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/30 ,  H04N19/52 ,  H04N19/68 ,  H04N19/70

Abstract: Methods for coding recovery point supplemental enhancement information (SEI) messages and region refresh SEI messages in multi-layer coding are disclosed. In one aspect, the method may include determining at least one picture among a plurality of pictures included within an access unit with which to associate at least one recovery point SEI message, the access unit being included within the multi-layer bitstream. The method may further include associating the at least one recovery point SEI message with the determined at least one picture. The method may also include coding the video information based at least in part on the association of the at least one recovery point SEI message with the determined at least one picture.

Abstract translation: 公开了用于对多层编码中的恢复点补充增强信息（SEI）消息和区域刷新SEI消息进行编码的方法。 在一个方面，该方法可以包括确定包括在与至少一个恢复点SEI消息相关联的接入单元内的多个画面中的至少一个画面，该接入单元包括在多层比特流内。 所述方法还可以包括将所述至少一个恢复点SEI消息与所确定的至少一个图片相关联。 该方法还可以包括至少部分地基于至少一个恢复点SEI消息与所确定的至少一个图片的关联来对视频信息进行编码。

公开(公告)号：US20150195549A1

公开(公告)日：2015-07-09

申请号：US14590897

申请日：2015-01-06

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/39 ,  H04N19/187 ,  H04N19/29

CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/187 ,  H04N19/29 ,  H04N19/30 ,  H04N19/33 ,  H04N19/39 ,  H04N19/59 ,  H04N19/70

Abstract: An apparatus configured to code video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a bitstream. The apparatus further includes a processor in communication with the memory, the processor configured to determine whether a reference layer is included in the bitstream. The processor is further configured to determine an indication of one or more parameters for a decoded picture buffer based upon whether the reference layer is included in the bitstream and to code the video information based at least in part on the determined indication of the one or more parameters for the decoded picture buffer.

Abstract translation: 被配置为对视频信息进行编码的装置包括与存储器通信的存储器和处理器。 存储器被配置为存储与比特流相关联的视频信息。 该装置还包括与存储器通信的处理器，该处理器被配置为确定参考层是否包括在比特流中。 所述处理器还被配置为基于所述参考层是否包括在所述比特流中并且至少部分地基于所确定的所述一个或多个指示的指示来对所述视频信息进行编码来确定用于解码图像缓冲器的一个或多个参数的指示 解码图像缓冲区的参数。

公开(公告)号：US20150172667A1

公开(公告)日：2015-06-18

申请号：US14567710

申请日：2014-12-11

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/90 ,  H04N19/44

CPC classification number: H04N19/105 ,  H04N19/103 ,  H04N19/114 ,  H04N19/136 ,  H04N19/172 ,  H04N19/188 ,  H04N19/30 ,  H04N19/44 ,  H04N19/597 ,  H04N19/65 ,  H04N19/70 ,  H04N19/90

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 received layer of multi-layer video data, where the first picture is included in an access unit. The 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, outputting all pictures stored in a decoded picture buffer (DPB) that precede the first picture in coding order and that are not included in the access unit.

Abstract translation: 在一个示例中，解码视频数据的方法包括解码数据，该数据指示针对第一接收层多层视频数据的第一图像的POC值重置的图像顺序计数（POC），其中第一图像被包括在 访问单元。 该方法还包括基于指示第一图像的POC值的POC复位的数据并且在解码第一图像之前，以编码顺序输出存储在第一图像之前的解码图像缓冲器（DPB）中的所有图像 并且不包括在访问单元中。

公开(公告)号：US20150110203A1

公开(公告)日：2015-04-23

申请号：US14521042

申请日：2014-10-22

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/91

CPC classification number: H04N19/597 ,  H04N5/91 ,  H04N19/136 ,  H04N19/30 ,  H04N19/46 ,  H04N19/52 ,  H04N19/573 ,  H04N19/58 ,  H04N19/59 ,  H04N19/70 ,  H04N19/91 ,  H04N21/8453 ,  H04N21/85406

Abstract: A computing device generates a file that comprises a track box that contains metadata for a track in the file. Media data for the track comprises a sequence of samples, each of the samples being a video access unit of multi-layer video data. As part of generating the file, the computing device generates, in the file, a sub-sample information box that contains flags that specify a type of sub-sample information given in the sub-sample information box. When the flags have a particular value, a sub-sample corresponding to the sub-sample information box contains exactly one coded picture and zero or more non-Video Coding Layer (VCL) Network Abstraction Layer (NAL) units associated with the coded picture.

Abstract translation: 计算设备生成包括包含文件中的轨道的元数据的轨道框的文件。 用于轨道的媒体数据包括一系列样本，每个样本是多层视频数据的视频访问单元。 作为生成文件的一部分，计算设备在文件中生成包含指定子样本信息框中给出的子样本信息的类型的标志的子样本信息框。 当标志具有特定值时，对应于子样本信息框的子样本包含与编码图像相关联的恰好一个编码图像和零个或多个非视频编码层（VCL）网络抽象层（NAL）单元。