公开(公告)号：US20140219363A1

公开(公告)日：2014-08-07

申请号：US14166735

申请日：2014-01-28

Applicant: Qualcomm Incorporated

Inventor： Vadim SEREGIN ,  Ying CHEN

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

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/50 ,  H04N19/52 ,  H04N19/597 ,  H04N19/70

Abstract: An apparatus for coding video information according to certain aspects 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 base layer, an enhancement layer, or both. The processor is operationally coupled to the memory unit and is configured to provide a first indicator configured to enable or disable inter-layer syntax prediction and to provide a second indicator configured to enable or disable inter-layer texture prediction. The first and second indicators can be provided separately from each other. In one embodiment, the processor is further configured to disable inter-layer syntax prediction based at least in part upon information indicative of a codec associated with the base layer.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储器单元被配置为存储与基本层，增强层或两者相关联的视频信息。 处理器可操作地耦合到存储器单元，并且被配置为提供配置为启用或禁用层间语法预测的第一指示符，并且提供被配置为启用或禁用层间纹理预测的第二指示符。 第一和第二指标可以彼此分开提供。 在一个实施例中，处理器还被配置为至少部分地基于指示与基本层相关联的编解码器的信息来禁用层间语法预测。

公开(公告)号：US20140185680A1

公开(公告)日：2014-07-03

申请号：US14137101

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Xiang LI ,  Jianle CHEN ,  Marta KARCZEWICZ ,  Vadim SEREGIN ,  Wei PU ,  Krishnakanth RAPAKA ,  Liwei GUO

IPC: H04N19/187 ,  H04N19/597 ,  H04N19/154 ,  H04N19/593 ,  H04N19/51 ,  H04N19/59

CPC classification number: H04N19/187 ,  H04N19/154 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/597

Abstract: An apparatus configured to code (e.g., encode or decode) 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 base layer and an enhancement layer. The processor is configured to up-sample a base layer reference block by using an up-sampling filter when the base and enhancement layers have different resolutions; perform motion compensation interpolation by filtering the up-sampled base layer reference block; determine base layer residual information based on the filtered up-sampled base layer reference block; determine weighted base layer residual information by applying a weighting factor to the base layer residual information; and determine an enhancement layer block based on the weighted base layer residual information. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码（例如，编码或解码）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基本层和增强层相关联的视频信息。 处理器被配置为当基层和增强层具有不同分辨率时，通过使用上采样滤波器对基层参考块进行采样; 通过对上采样的基层参考块进行滤波来执行运动补偿内插; 基于滤波的上采样基层参考块确定基层残差信息; 通过对所述基本层残差信息应用加权因子来确定加权基本层残差信息; 并且基于加权的基本层残差信息来确定增强层块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140092967A1

公开(公告)日：2014-04-03

申请号：US14035674

申请日：2013-09-24

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Xianglin WANG ,  Chengjie TU ,  Ying CHEN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/30 ,  H04N19/52

Abstract: Systems, methods, and devices for coding video data are described herein. In some aspects, a memory is configured to store the video data associated with a base layer and an enhancement layer. The base layer may comprise a reference block and base layer motion information associated with the reference block. The enhancement layer may comprise a current block. A processor operationally coupled to the memory is configured to determine a position of the base layer motion information in a candidate list based on a prediction mode in a plurality of prediction modes used at the enhancement layer. The processor is further configured to perform a prediction of the current block based at least in part on the candidate list.

Abstract translation: 本文描述了用于编码视频数据的系统，方法和设备。 在一些方面，存储器被配置为存储与基本层和增强层相关联的视频数据。 基本层可以包括与参考块相关联的参考块和基本层运动信息。 增强层可以包括当前块。 可操作地耦合到存储器的处理器被配置为基于在增强层处使用的多种预测模式中的预测模式来确定候选列表中的基本层运动信息的位置。 处理器还被配置为至少部分地基于候选列表来执行当前块的预测。

公开(公告)号：US20140064360A1

公开(公告)日：2014-03-06

申请号：US14011441

申请日：2013-08-27

Applicant: QUALCOMM INCORPORATED

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/129 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/593

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video information associated with a reference layer and a corresponding enhancement layer. The processor determines a value of a video unit positioned at a position within the enhancement layer based at least in part on an intra prediction value weighted by a first weighting factor, wherein the intra prediction value is determined based on at least one additional video unit in the enhancement layer, and a value of a co-located video unit in the reference layer weighted by a second weighting factor, wherein the co-located video unit is located at a position in the reference layer corresponding to the position of the video unit in the enhancement layer. In some embodiments, the at least one of the first and second weighting factors is between 0 and 1.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储与参考层和对应的增强层相关联的视频信息。 处理器至少部分地基于由第一加权因子加权的帧内预测值来确定位于增强层内的位置处的视频单元的值，其中帧内预测值基于至少一个附加视频单元 所述增强层和由第二加权因子加权的参考层中的同位置视频单元的值，其中所述同位置视频单元位于与所述视频单元的位置对应的参考层中的位置 增强层。 在一些实施例中，第一和第二加权因子中的至少一个在0和1之间。

公开(公告)号：US20130272409A1

公开(公告)日：2013-10-17

申请号：US13860314

申请日：2013-04-10

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim SEREGIN ,  Muhammed Zeyd COBAN ,  Xianglin WANG ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N11/02

CPC classification number: H04N19/56 ,  H04N19/172 ,  H04N19/433 ,  H04N19/44 ,  H04N19/51 ,  H04N19/52

Abstract: Techniques for encoding and decoding video data are described. A method of coding video may include determining a plurality of motion vector candidates for a block of video data for use in a motion vector prediction process, wherein each of the motion vector candidates points to a respective reference frame index, performing the motion vector prediction process using the motion vector candidates to determine a motion vector for the block of video data, and performing motion compensation for the block of video data using the motion vector and a common reference frame index, wherein the common reference frame index is used regardless of the respective reference frame index associated with the determined motion vector.

Abstract translation: 描述用于编码和解码视频数据的技术。 编码视频的方法可以包括确定用于运动矢量预测处​​理中的视频数据块的多个运动矢量候选，其中每个运动矢量候选指向相应的参考帧索引，执行运动矢量预测处​​理 使用运动矢量候选来确定视频数据块的运动矢量，并且使用运动矢量和公共参考帧索引对视频数据块执行运动补偿，其中使用公共参考帧索引而不管相应的 与确定的运动矢量相关联的参考帧索引。

公开(公告)号：US20130272377A1

公开(公告)日：2013-10-17

申请号：US13828173

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Marta KARCZEWICZ ,  Vadim SEREGIN ,  Xianglin WANG ,  Muhammed Zeyd Coban

IPC: H04N7/26 ,  H03M7/30

CPC classification number: H04N19/103 ,  H03M7/30 ,  H04N19/13 ,  H04N19/463 ,  H04N19/70

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。 该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，至少具有CABAC处理的旁路编码模式的参考索引值的另一个bin，并且对参考进行二值化 指数值

公开(公告)号：US20250119529A1

公开(公告)日：2025-04-10

申请号：US18935362

申请日：2024-11-01

Applicant: QUALCOMM Incorporated

Inventor： Yao-Jen CHANG ,  Jingya LI ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/573

Abstract: Systems and techniques are provided for overlapped block motion compensation (OBMC). A method can include determining an OBMC mode is enabled for a current subblock of video data; for a neighboring subblock(s) adjacent to the current subblock, determining whether a first, second and third condition are met, the first condition comprising that all reference picture lists for predicting the current subblock are used to predict the neighboring subblock; the second condition comprising that identical reference pictures are used to determine motion vectors associated with the current subblock and the neighboring subblock, and the third condition comprising that a difference between motion vectors of the current subblock and the neighboring subblock do not exceed a threshold; and based on determining that the OBMC mode is enabled and the first, second, and third conditions are met, determining not to use motion information of the neighboring subblock for motion compensation of the current subblock.

公开(公告)号：US20240323368A1

公开(公告)日：2024-09-26

申请号：US18593767

申请日：2024-03-01

Applicant: QUALCOMM Incorporated

Inventor： Nan HU ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/117 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/86 ,  H04N19/96

CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/86 ,  H04N19/96

Abstract: Systems, methods, and media are provided for loop filtering across raster scan slices. One example includes obtaining the video data comprising one or more pictures and a first block of a picture having a pixel subject to filtering. A second block is determined to be located in the first slice in a particular relation to the second block. A third block that includes pixels for filtering the pixel is determined to be in a second slice at a diagonal corner of the first block, with filtering across slice boundaries disabled. First one or more pixels of the second block are identified as available for performing loop filtering of the pixel and second one or more pixels of the third block identified as unavailable for performing the loop filtering of the pixel of the first block. The first one or more pixels and the second one or more pixels are padded.

公开(公告)号：US20240015326A1

公开(公告)日：2024-01-11

申请号：US18343632

申请日：2023-06-28

Applicant: QUALCOMM Incorporated

Inventor： Bappaditya RAY ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N19/60 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/60 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: Systems and techniques are described for processing video data. For example, an apparatus can obtain a block of video data encoded using inter-prediction. In some examples, the apparatus can determine a direction associated with the block of video data, for instance based on pixels of the block of video data, based on pixels of at least one neighboring block of the block of video data, or based on information associated with a geometric partitioning mode (GPM) associated with the block of video data. The apparatus can apply a non-separable transform to the block of video data, for instance to decode or encode the video data. In some examples, the apparatus can apply the non-separable transform to the block according to the direction associated with the block of video data.

公开(公告)号：US20220417522A1

公开(公告)日：2022-12-29

申请号：US17847942

申请日：2022-06-23

Applicant: QUALCOMM Incorporated

Inventor： Han HUANG ,  Vadim SEREGIN ,  Wei-Jung CHIEN ,  Zhi ZHANG ,  Chun-Chi CHEN ,  Marta KARCZEWICZ

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70

Abstract: Systems and techniques are provided for processing video data. For example, the systems and techniques can include obtaining a current picture of video data and obtaining reference pictures for the current picture from the video data. A merge mode candidate can be determined for the current picture. First and second motion vectors can be identified for the merge mode candidate. A motion vector search strategy can be selected for the merge mode candidate from a plurality of motion vector search strategies. The selected motion vector search strategy can be associated with one or more constraints corresponding to at least one of the first motion vector or the second motion vector. The selected motion vector search strategy can be used to determine refined motion vectors based on the first motion vector, the second motion vector, and the reference pictures. The merge mode candidate can be processed using the refined motion vectors.