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。

公开(公告)号：US20150092837A1

公开(公告)日：2015-04-02

申请号：US14496807

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang

IPC: H04N19/30 ,  H04N19/70 ,  H04N19/176 ,  H04N19/109

CPC classification number: H04N19/597 ,  H04N19/30 ,  H04N19/463 ,  H04N19/70

Abstract: A video decoder receives a value for a first syntax element representing whether a dependency type syntax element for a current layer is signaled, wherein the dependency type syntax element identifies a type of dependency of a current layer relative to a reference layer; and in response to the value for the first syntax element indicating that the dependency type syntax element is not signaled determines that the type of dependency of the current layer relative to the reference layer is a predetermined type and decodes a block of the current layer using inter-layer prediction conforming to the predetermined type.

Abstract translation: 视频解码器接收表示用于当前层的依赖关系类型语法元素是否被通知的第一语法元素的值，其中所述依赖关系类型语法元素识别当前层相对于参考层的依赖关系的类型; 并且响应于指示依赖类型语法元素没有被发信号的第一语法元素的值确定当前层相对于参考层的依赖关系的类型是预定类型，并且使用间隔来解码当前层的块 符合预定类型的层预测。

公开(公告)号：US20150085935A1

公开(公告)日：2015-03-26

申请号：US14496991

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Geert Van der Auwera ,  Li Zhang ,  Hongbin Liu

IPC: H04N19/597 ,  H04N19/583 ,  H04N19/51

CPC classification number: H04N19/597 ,  H04N19/197 ,  H04N19/52 ,  H04N19/53 ,  H04N19/56

Abstract: Techniques are described for sub-prediction unit (PU) based motion prediction for video coding in HEVC and 3D-HEVC. In one example, the techniques include an advanced temporal motion vector prediction (TMVP) mode to predict sub-PUs of a PU in single layer coding for which motion vector refinement may be allowed. The advanced TMVP mode includes determining motion vectors for the PU in at least two stages to derive motion information for the PU that includes different motion vectors and reference indices for each of the sub-PUs of the PU. In another example, the techniques include storing separate motion information derived for each sub-PU of a current PU predicted using a sub-PU backward view synthesis prediction (BVSP) mode even after motion compensation is performed. The additional motion information stored for the current PU may be used to predict subsequent PUs for which the current PU is a neighboring block.

公开(公告)号：US20150030087A1

公开(公告)日：2015-01-29

申请号：US14340394

申请日：2014-07-24

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Jewon Kang

IPC: H04N19/85 ,  H04N19/23 ,  H04N13/00 ,  H04N19/597

CPC classification number: H04N13/161 ,  H04N19/44 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/597 ,  H04N19/70

Abstract: In general, the disclosure relates to encoding and decoding a block of video data associated with three-dimensional (3D) video. A video coding device determines whether a depth condition associated with the block of video data should be set to valid within a coded bitstream. When the depth condition should be set to valid, the video coding device sets the depth condition to valid and encodes the block of video data using at least one camera parameter. The video coding device then determines whether the depth condition is valid. When the depth condition is valid, the video coding device decodes the block of video data using at least one camera parameter.

Abstract translation: 通常，本公开涉及对与三维（3D）视频相关联的视频数据块进行编码和解码。 视频编码装置确定与视频数据块相关联的深度条件是否应在编码比特流内设置为有效。 当深度条件设置为有效时，视频编码装置使用至少一个摄像机参数将深度条件设置为有效并对视频数据块进行编码。 然后，视频编码装置确定深度条件是否有效。 当深度条件有效时，视频编码装置使用至少一个相机参数对视频数据块进行解码。

公开(公告)号：US20150003521A1

公开(公告)日：2015-01-01

申请号：US14316088

申请日：2014-06-26

Applicant: QUALCOMM Incorporated

Inventor： Vijayaraghavan Thirumalai ,  Li Zhang ,  Ying Chen

IPC: H04N19/503 ,  H04N19/90

CPC classification number: H04N19/597 ,  H04N19/52 ,  H04N19/70

Abstract: An example video coding device is configured to determine a depth value associated with a block of video data included in a dependent depth view, based on one or more neighboring pixels positioned adjacent to the block of video data in the dependent depth view, and generate a disparity vector associated with the block of video data, based at least in part on the determined depth value associated with the block of video data. The video coding device may further be configured to use the disparity vector to generate an inter-view disparity motion vector candidate (IDMVC), generate an inter-view predicted motion vector candidate (IPMVC) associated with the block of video data based on a corresponding block of video data in a base view, and determine whether to add any of the IDMVC and the IPMVC to a merge candidate list associated with the block of video data.

Abstract translation: 示例性视频编码设备被配置为基于在相关深度视图中与视频数据块相邻定位的一个或多个相邻像素来确定与从属深度视图中包括的视频数据块相关联的深度值，并且生成 至少部分地基于与视频数据块相关联的确定的深度值，与视频数据块相关联的视差矢量。 视频编码装置还可以被配置为使用视差矢量来生成视角间视差运动矢量候选（IDMVC），基于相应的视频数据生成与视频数据块相关联的视频间预测运动矢量候选（IPMVC） 在基本视图中的视频数据块，并且确定是否将任何IDMVC和IPMVC添加到与视频数据块相关联的合并候选列表。

公开(公告)号：US20140376633A1

公开(公告)日：2014-12-25

申请号：US14309711

申请日：2014-06-19

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/51 ,  H04N19/583

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/513 ,  H04N19/70

Abstract: Techniques for advanced residual prediction (ARP) for coding video data may include inter-view ARP. Inter-view ARP may include identifying a disparity motion vector (DMV) for a current video block. The DMV is used for inter-view prediction of the current video block based on an inter-view reference video block. The techniques for inter-view ARP may also include identifying temporal reference video blocks in the current and reference views based on a temporal motion vector (TMV) of the inter-view reference video block, and determining a residual predictor block based on a difference between the temporal reference video blocks.

Abstract translation: 用于编码视频数据的高级残差预测（ARP）技术可以包括视频间ARP。 视图间ARP可以包括识别当前视频块的视差运动矢量（DMV）。 DMV用于基于视频间参考视频块的当前视频块的视图间预测。 用于互相观看的ARP的技术还可以包括基于视频间参考视频块的时间运动矢量（TMV）识别当前和参考视图中的时间参考视频块，以及基于视间参考视频块的时间参考视频块之间的差 时间参考视频块。

公开(公告)号：US20140355692A1

公开(公告)日：2014-12-04

申请号：US14293829

申请日：2014-06-02

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/46 ,  H04N19/70

CPC classification number: H04N19/46 ,  H04N19/30 ,  H04N19/573 ,  H04N19/58 ,  H04N19/597 ,  H04N19/70

Abstract: A device may determine, based on a value, whether all cross-layer random access skipped (CL-RAS) pictures of an intra random access point (IRAP) access unit are present in a video data bitstream. In addition, the device may reconstruct pictures of the video data based at least in part on syntax elements decoded from the video data bitstream.

Abstract translation: 设备可以基于值来确定在视频数据比特流中是否存在内部随机接入点（IRAP）访问单元的所有跨层随机访问跳过（CL-RAS）图像。 此外，设备可以至少部分地基于从视频数据比特流解码的语法元素来重构视频数据的图像。

公开(公告)号：US20140307803A1

公开(公告)日：2014-10-16

申请号：US14247051

申请日：2014-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/91 ,  H04N19/44 ,  H04N19/70

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 a non-entropy encoded layer dependency information at a position within a video parameter set (VPS) extension prior to syntax elements of the VPS extension that are entropy encoded. The systems, methods, and devices may encode or decode the non-entropy encoded layer dependency information before an entropy encoded syntax element. The systems, methods, and devices may encode or decode video data of one or more of the layers of video data based on the non-entropy encoded layer dependency information. The layer dependency information indicates whether one of the layers is a direct reference layer for another of the layers.

Abstract translation: 公开了用于编码多层视频数据的系统，方法和设备，其可以包括在视频参数集（VPS）扩展内的位置处的编码，解码，发送或接收非熵编码层依赖性信息， 熵编码的VPS扩展。 系统，方法和装置可以在熵编码的语法元素之前编码或解码非熵编码层依赖性信息。 系统，方法和设备可以基于非熵编码层依赖性信息对视频数据层中的一个或多个层的视频数据进行编码或解码。 层相关性信息指示层中的一个是否是另一层的直接参考层。

公开(公告)号：US20140301484A1

公开(公告)日：2014-10-09

申请号：US14247079

申请日：2014-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/46

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 transmit or receive a video parameter set (VPS) including information for a series of layers, each layer including visual signal information. The systems, methods, and devices may code (encode or decode) video data based on the visual signal information signaled per layer in the VPS.

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，方法和设备可以发送或接收包括一系列层的信息的视频参数集（VPS），每个层包括视觉信号信息。 系统，方法和设备可以基于VPS中每层信令的视觉信号信息对视频数据进行编码（编码或解码）。

公开(公告)号：US20140286423A1

公开(公告)日：2014-09-25

申请号：US14218487

申请日：2014-03-18

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang ,  Jewon Kang

IPC: H04N19/51 ,  H04N19/80 ,  H04N19/597

CPC classification number: H04N19/513 ,  H04N19/52 ,  H04N19/597 ,  H04N19/80

Abstract: A video decoder performs a neighboring-block based disparity vector (NBDV) derivation process to determine a disparity vector or performs a NBDV refinement (NBDV-R) process to determine the disparity vector. The video decoder uses the disparity vector as a disparity vector for a current block without using a median filtering process on multiple disparity motion vectors, wherein the current block is coded in either a skip mode or a direct mode. Furthermore, the video coder determines pixel values for the current block.

Abstract translation: 视频解码器执行基于相邻块的视差矢量（NBDV）导出处理以确定视差矢量或执行NBDV细化（NBDV-R）处理以确定视差矢量。 视频解码器使用视差矢量作为当前块的视差向量，而不对多个视差运动矢量使用中值滤波处理，其中当前块以跳过模式或直接模式进行编码。 此外，视频编码器确定当前块的像素值。