公开(公告)号：US20140254667A1

公开(公告)日：2014-09-11

申请号：US14196479

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

IPC: H04N19/503 ,  H04N19/436 ,  H04N19/80

CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: In one example, a device for coding video data includes a video coder configured to code data indicating whether tile boundaries of different layers of video data are aligned and whether inter-layer prediction is allowed along or across tile boundaries of enhancement layer blocks, code an enhancement layer block in an enhancement layer tile of the video data without using inter-layer prediction from a collocated base layer block for which inter-layer filtering or reference layer filtering across tile boundaries in a reference layer picture in an access unit including both the enhancement layer tile and the base layer block is enabled, and code the collocated base layer block.

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，被配置为对表示视频数据的不同层的瓦片边界是否对准的数据进行编码，以及允许层间预测沿着或跨越增强层块的平铺边界，代码 增强层块在视频数据的增强层块中，而不使用来自并置基础层块的层间预测，对于该层次块来说，在包括增强的访问单元的访问单元中的参考层图像中的跨层过滤或跨平铺边界的参考层过滤 层瓦片和基层块被启用，并对并置的基层块进行编码。

公开(公告)号：US20140254666A1

公开(公告)日：2014-09-11

申请号：US14196295

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

IPC: H04N19/503

CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: In one example, a device for coding video data includes a video coder configured to code data representative of whether a tile of an enhancement layer picture can be predicted using inter-layer prediction, and predict data of the tile using inter-layer prediction only when the data indicates that the tile can be predicted using inter-layer prediction.

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，被配置为对表示是否可以使用层间预测来预测增强层图像的片段的数据进行编码;以及仅使用层间预测来预测瓦片的数据， 数据表示可以使用层间预测来预测瓦片。

公开(公告)号：US20140185665A1

公开(公告)日：2014-07-03

申请号：US14139357

申请日：2013-12-23

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Jianle Chen ,  Krishnakanth Rapaka ,  Marta Karczewicz

IPC: H04N19/117 ,  H04N19/196 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: This disclosure presents techniques for sample adaptive offset (SAO) filtering that focus on filtering the changed region of a picture or layer (e.g., the high frequency component of video blocks of a picture or layer). In general, the techniques of this disclosure may be referred to as High-Frequency-Pass SAO (HSAO) filtering. In one example, a method for coding video data comprises obtaining a decoded block of video data, separating the decoded block of video data into a low-frequency component and a high-frequency component, applying an SAO filter to the high-frequency component to generate a SAO filtered high-frequency component, and combining the SAO filtered high-frequency component and the low-frequency component to generate a filtered decoded block of video data.

Abstract translation: 本公开提供了用于对图像或层的改变区域（例如，图像或层的视频块的高频分量）进行滤波的样本自适应偏移（SAO）滤波的技术。 通常，本公开的技术可以被称为高频通过SAO（HSAO）滤波。 在一个示例中，用于编码视频数据的方法包括获得解码的视频数据块，将解码的视频数据块分成低频分量和高频分量，将SAO滤波器应用于高频分量 生成SAO滤波的高频分量，并组合SAO滤波的高频分量和低频分量以产生滤波的解码的视频数据块。

公开(公告)号：US20140044161A1

公开(公告)日：2014-02-13

申请号：US13954749

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Vadim Seregin ,  Xiang Li ,  Krishnakanth Rapaka ,  Chengjie Tu ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70 ,  H04N19/82

Abstract: Methods and systems for video image coding are provided. Sets of filters may be selected and applied to video information at least partially based on the type of inter layer prediction implemented in coding the video information. Different filters, or filter sets, may be used for inter layer intra prediction, difference domain intra prediction, and/or difference domain inter prediction. Filter selection information may be embedded in the video bit stream.

Abstract translation: 提供了视频图像编码的方法和系统。 可以至少部分地基于在编码视频信息中实现的层间预测的类型来选择并将其应用于视频信息。 不同的滤波器或滤波器组可以用于层间帧内预测，​​差分帧内预测和/或差域帧间预测。 滤波器选择信息可以嵌入在视频比特流中。

公开(公告)号：US20130230097A1

公开(公告)日：2013-09-05

申请号：US13780846

申请日：2013-02-28

Applicant: QUALCOMM INCORPORATED

Inventor： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Wei-Jung Chien ,  Vadim Seregin ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/18 ,  H04N19/436 ,  H04N19/91

Abstract: A video coding process that includes defining a context derivation neighborhood for one of a plurality of transform coefficients based on a transform coefficient scan order. The process also includes determining a context for the one of the plurality of transform coefficients based on the context derivation neighborhood. The process also includes coding the one of the plurality of transform coefficients based on the determined context.

Abstract translation: 一种视频编码过程，包括基于变换系数扫描顺序为多个变换系数中的一个定义上下文导出邻域。 该过程还包括基于上下文导出邻域来确定多个变换系数之一的上下文。 该过程还包括基于所确定的上下文对多个变换系数之一进行编码。

公开(公告)号：US20130188720A1

公开(公告)日：2013-07-25

申请号：US13748055

申请日：2013-01-23

Applicant: QUALCOMM Incorporated

Inventor： Xianglin Wang ,  Vadim Seregin ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/513 ,  H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/194 ,  H04N19/436 ,  H04N19/52 ,  H04N19/61

Abstract: An example video encoder is configured to receive an indication of merge mode coding of a block within a parallel motion estimation region (PMER), generate a merge mode candidate list comprising one or more spatial neighbor motion vector (MV) candidates and one or more temporal motion vector prediction (TMVP) candidates, wherein motion information of at least one of the spatial neighbor MV candidates is known to be unavailable during coding of the block at an encoder, determine an index value identifying, within the merge mode candidate list, one of the TMVP candidates or the spatial neighbor MV candidates for which motion information is available during coding of the particular block, and merge mode code the block using the identified MV candidate.

Abstract translation: 示例性视频编码器被配置为接收并行运动估计区域（PMER）内的块的合并模式编码的指示，生成包括一个或多个空间相邻运动矢量（MV）候选和一个或多个时间的合并模式候选列表 运动矢量预测（TMVP）候选，其中至少一个空间相邻MV候选的运动信息在编码器的编码期间已知不可用，确定在合并模式候选列表中识别在 在特定块的编码期间运动信息可用的TMVP候选或空间相邻MV候选，以及使用所识别的MV候选的合并模式对块进行编码。

公开(公告)号：US20130163668A1

公开(公告)日：2013-06-27

申请号：US13709555

申请日：2012-12-10

Applicant: Qualcomm Incorporated

Inventor： Jianle Chen ,  Muhammed Zeyd Coban ,  Ye-Kui Wang ,  Xianglin Wang ,  Marta Karczewicz ,  Wei-Jung Chien

IPC: H04N7/26

CPC classification number: H04N19/463 ,  H04N19/196 ,  H04N19/197 ,  H04N19/52 ,  H04N19/70

Abstract: In general, techniques are described for performing motion vector prediction for video coding. A video coding device comprising a processor may perform the techniques. The processor may be configured to determine a plurality of candidate motion vectors for a current block of the video data so as to perform the motion vector prediction process and scale one or more of the plurality of candidate motion vectors determined for the current block of the video data to generate one or more scaled candidate motion vectors. The processor may then be configured to modify the scaled candidate motion vectors to be within a specified range.

Abstract translation: 通常，描述了用于执行视频编码的运动矢量预测的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以被配置为确定视频数据的当前块的多个候选运动矢量，以便执行运动矢量预测处​​理并缩放为视频的当前块确定的多个候选运动矢量中的一个或多个 数据以生成一个或多个缩放的候选运动矢量。 处理器然后可以被配置为将缩放的候选运动矢量修改为在指定范围内。

公开(公告)号：US12301863B2

公开(公告)日：2025-05-13

申请号：US18534336

申请日：2023-12-08

Applicant: QUALCOMM Incorporated

Inventor： Kai Zhang ,  Jianle Chen ,  Xin Zhao ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/109 ,  H04N19/147 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/54 ,  H04N19/70 ,  H04N19/96

Abstract: A device for video decoding can be configured to obtain, from a syntax structure in a bitstream comprising an encoded representation of the video data, a syntax element indicating whether 6-parameter affine prediction is enabled for blocks corresponding to the syntax structure, wherein the blocks corresponding to the syntax structure comprise a first block; based on the syntax element indicating that the 6-parameter affine prediction is enabled for the blocks corresponding to the syntax structure, use the 6-parameter affine prediction to generate a predictive block for the first block; and use the predictive block and residual data to reconstruct the first block.

公开(公告)号：US12137217B2

公开(公告)日：2024-11-05

申请号：US18331762

申请日：2023-06-08

Applicant: QUALCOMM Incorporated

Inventor： Sungwon Lee ,  Wei-Jung Chien ,  Adarsh Krishnan Ramasubramonian ,  Muhammed Zeyd Coban ,  Jianle Chen ,  Yi-Wen Chen ,  Marta Karczewicz

IPC: H04N19/114 ,  H04N19/107 ,  H04N19/159 ,  H04N19/187 ,  H04N19/31 ,  H04N19/70

Abstract: A device for encoding video data includes a memory configured to store video data, and a video encoder implemented in circuitry and configured to encode a future picture of the video data having a first display order position, the future picture being included in an intra period (IP) of the video data, the IP comprising a plurality of groups of pictures (GOPs), and after encoding the future picture, encode a picture of an ordinal first GOP of the plurality of GOPs using the future picture as a reference picture, each picture of the ordinal first GOP having display order positions earlier than the first display order position. Encoding the future picture in this manner may result in encoding performance improvements with minimal increases in encoding and decoding complexity.

公开(公告)号：US11930215B2

公开(公告)日：2024-03-12

申请号：US17448658

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

Inventor： Hongtao Wang ,  Venkata Meher Satchit Anand Kotra ,  Jianle Chen ,  Marta Karczewicz ,  Dana Kianfar ,  Auke Joris Wiggers

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

Abstract: An example device for filtering decoded video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: decode a picture of video data; code a value for a syntax element representing a neural network model to be used to filter a portion of the decoded picture, the value representing an index into a set of pre-defined neural network models, the index corresponding to the neural network model in the set of pre-defined neural network models; and filter the portion of the decoded picture using the neural network model corresponding to the index.