公开(公告)号：US20230124010A1

公开(公告)日：2023-04-20

申请号：US17932201

申请日：2022-09-14

Applicant: QUALCOMM Incorporated

Inventor： Keming CAO ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: G06V10/50 ,  G06V10/28 ,  G06F16/22 ,  G01B11/26 ,  H04N19/159

Abstract: Systems and techniques are described for processing video data. For example, an apparatus can determine, for a sample of a first block of video data, histogram of gradient (HoG) information based on at least one sample from a second block neighboring the first block. The apparatus can determine, based on the HoG information, an angle associated with a direction of a gradient for the sample and the at least one sample from the second block neighboring the first block. The apparatus can further compare the angle to one or more predefined values and determine an index associated with the angle based on the comparison of the angle to the one or more predefined values. The apparatus can then determine, based on the index, an intra-prediction mode for coding the first block of video data.

公开(公告)号：US20220201329A1

公开(公告)日：2022-06-23

申请号：US17645024

申请日：2021-12-17

Applicant: QUALCOMM Incorporated

Inventor： Bappaditya RAY ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/117 ,  H04N19/105 ,  H04N19/80 ,  H04N19/174

Abstract: Techniques are described herein for processing video data using enhanced interpolation filters for intra-prediction. For instance, a device can determine an intra-prediction mode for predicting a block of video data. The device can determine a type of smoothing filter to use for the block of video data, wherein the type of the smoothing filter is determined based at least in part on comparing at least one of a width of the block of video data and a height of the block of video data to a first threshold. The device can further perform intra-prediction for the block of video data using the determined type of smoothing filter and the intra-prediction mode.

公开(公告)号：US20210195183A1

公开(公告)日：2021-06-24

申请号：US17128005

申请日：2020-12-19

Applicant: Qualcomm Incorporated

Inventor： Nan HU ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/46 ,  H04N19/186 ,  H04N19/176

Abstract: A device capable of compressing video data includes a memory configured to store a luma new filter value, a chroma new filter value, a cross component Cb new filter value, and a cross component Cr new filter value. The device may also include one or more processors, coupled to the memory, configured to set a joint constraint on the luma new filter value, the chroma new filter value, the cross component Cb new filter value, and the cross component Cr new filter value, such that each of the luma new filter value, the chroma new filter value, the cross component Cb new filter value, and the cross component Cr new filter value are not disabled in a unit associated with an adaptation parameter set having a first adaptation parameter set identification (APS ID).

公开(公告)号：US20200244953A1

公开(公告)日：2020-07-30

申请号：US16749554

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN

IPC: H04N19/105 ,  H04N19/593 ,  H04N19/176 ,  H04N19/136

Abstract: A rectangular block of video data is obtained, and the lengths of first and second sides of the block are determined. Intra-coded samples may be excluded from the first and/or second sides, or replaced with intra-coded samples from a reference block. Lengths of the first and second sides are determined based on non-excluded samples. Based on these lengths, a shortest or greatest side is selected. In some cases, additional samples may be excluded so that the total number of samples is a power of two. Illumination compensation parameters are determined based on remaining (non-excluded) samples neighboring the current block.

公开(公告)号：US20150103928A1

公开(公告)日：2015-04-16

申请号：US14514153

申请日：2014-10-14

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Adarsh Krishnan RAMASUBRAMONIAN ,  Ye-Kui WANG

IPC: H04N19/33 ,  H04N19/174 ,  H04N19/46

CPC classification number: H04N19/33 ,  H04N19/174 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

Abstract: An apparatus configured to code 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 reference layer (RL) and an enhancement layer (EL), the RL having an RL picture in a first access unit, and the EL having a first EL picture in the first access unit, wherein the first EL picture is associated with a first set of parameters. The processor is configured to determine whether the first EL picture is an intra random access point (IRAP) picture, determine whether the first access unit immediately follows a splice point where first video information is joined with second video information including the first EL picture, and perform, based on the determination of whether the first EL picture is an intra random access point (IRAP) picture and whether the first access unit immediately follows a splice point, one of (1) refraining from associating the first EL picture with a second set of parameters that is different from the first set of parameters, or (2) associating the first EL picture with a second set of parameters that is different from the first set of parameters. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编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参考层（RL）和增强层（EL）相关联的视频信息，RL在第一存取单元中具有RL图像，并且EL在第一存取单元中具有第一EL图像 ，其中所述第一EL图像与第一组参数相关联。 处理器被配置为确定第一EL图像是否是内部随机接入点（IRAP）图像，确定第一存取单元是否紧接着第一视频信息与包括第一EL图像的第二视频信息相连接的拼接点，以及 执行基于第一EL图像是否是内部随机接入点（IRAP）图像的确定以及第一存取单元是否紧跟在拼接点之后，（1）避免将第一EL图像与第二组相关联 的参数不同于第一组参数，或者（2）将第一EL图像与不同于第一组参数的第二组参数相关联。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140362910A1

公开(公告)日：2014-12-11

申请号：US14298555

申请日：2014-06-06

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ye-Kui WANG

IPC: H04N19/109 ,  H04N19/51 ,  H04N19/172

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/30 ,  H04N19/52 ,  H04N19/70 ,  H04N19/82

Abstract: An apparatus for coding video information may include computing hardware configured to: when a current picture is to be predicted using at least inter layer motion prediction (ILMP): process a collocated reference index value associated with the current picture, wherein the collocated reference index value indicates a first reference picture that is used in predicting the current picture using inter layer prediction (ILP); and determine whether the first reference picture indicated by the collocated reference index value is enabled for ILMP; when the current picture is to be predicted using at least inter layer sample prediction (ILSP): process a reference index value associated with a block in the current picture, wherein the reference index value indicates a second reference picture that is used in predicting the block in the current picture using ILP; and determine whether the second reference picture indicated by the reference index value is enabled for ILSP.

Abstract translation: 一种用于对视频信息进行编码的装置可以包括：计算硬件，被配置为：当使用至少帧间运动预测（ILMP）来预测当前图像时：处理与当前图像相关联的并置参考索引值，其中并置参考索引值 表示使用层间预测（ILP）来预测当前图像的第一参考图像; 并且确定由并置的参考索引值指示的第一参考图片是否被使能为ILMP; 当使用至少中间层样本预测（ILSP）来预测当前图像时：处理与当前图片中的块相关联的参考索引值，其中参考索引值指示用于预测块的第二参考图片 在当前图片中使用ILP; 并且确定由参考索引值指示的第二参考图片是否对ILSP启用。

公开(公告)号：US20140328398A1

公开(公告)日：2014-11-06

申请号：US14266658

申请日：2014-04-30

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Xiang LI ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N19/587 ,  H04N19/31

CPC classification number: H04N19/31 ,  H04N19/33 ,  H04N19/587

Abstract: An apparatus for coding video information according to certain aspects includes a memory and a processor. The memory unit is configured to store video information associated with an interlayer reference picture for a current picture to be coded. The processor is configured to: receive information relating to a plurality of interlayer reference offsets that are configured to define a region of a resampled version of the interlayer reference picture, wherein the region is used to generate a prediction of the current picture, and wherein the plurality of interlayer reference offsets include a left offset, a top offset, a right offset, and a bottom offset that are each specified relative to the current picture; determine based at least in part on the plurality of interlayer reference offsets whether to resample the interlayer reference picture; and in response to determining to resample the interlayer reference picture, resample the interlayer reference picture.

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和处理器。 存储单元被配置为存储与要编码的当前图像的中间层参考图片相关联的视频信息。 处理器被配置为：接收与被配置为定义中间参考图像的再采样版本的区域的多个层间参考偏移相关的信息，其中该区域用于生成当前图像的预测，并且其中 多个层间参考偏移包括相对于当前画面各自指定的左偏移，顶偏移，右偏移和底偏移; 至少部分地基于所述多个层间参考偏移确定是否重新采样所述中间层参考图像; 并且响应于确定重新采样层间参考图片，对层间参考图片进行重新采样。

公开(公告)号：US20140198846A1

公开(公告)日：2014-07-17

申请号：US14154077

申请日：2014-01-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/593 ,  H04N19/33

CPC classification number: H04N19/117 ,  H04N19/30 ,  H04N19/33 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61

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 enhancement layer comprising an enhancement layer (EL) block and the base layer comprising a base layer (BL) block that is co-located with the enhancement layer block. The processor is configured to determine predicted pixel information of the EL block by applying a prediction function to pixel information of the BL block, and to determine the EL block using the predicted pixel 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，所述增强层包括增强层（EL）块，并且所述基本层包括与增强层位于同一位置的基本层（BL）块 层块。 处理器被配置为通过对BL块的像素信息应用预测函数来确定EL块的预测像素信息，并且使用预测像素信息来确定EL块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140192883A1

公开(公告)日：2014-07-10

申请号：US14137510

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN

IPC: H04N19/51

CPC classification number: H04N19/33 ,  H04N19/52 ,  H04N19/96

Abstract: An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store a candidate list generated for coding the video information. The candidate list comprises at least one base layer motion vector candidate. The processor is configured to determine a behavior for generating said at least one base layer motion vector candidate, generate said at least one base layer motion vector candidate for a current prediction unit (PU) in a particular coding unit (CU) according to the determined behavior, wherein the particular CU has one or more PUs, and add said at least one base layer motion vector candidate to the candidate list. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。 存储单元被配置为存储为编码视频信息而生成的候选列表。 候选列表包括至少一个基本层运动矢量候选。 所述处理器被配置为确定用于生成所述至少一个基本层运动矢量候选的行为，根据确定的特定编码单元（CU）为当前预测单元（PU）生成所述至少一个基本层运动矢量候选 行为，其中所述特定CU具有一个或多个PU，并将所述至少一个基本层运动矢量候选添加到所述候选列表。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140072041A1

公开(公告)日：2014-03-13

申请号：US14019468

申请日：2013-09-05

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA

IPC: H04N7/32

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593

Abstract: An apparatus for coding video data according to certain aspects includes a memory and a processor in communication with the memory. The memory is configured to store video information, such as base layer video information and enhancement layer video information. The processor is configured to determine a value of a current video unit of enhancement layer video information based at least on a weighted inter-layer predictor and a weighted intra-layer predictor of at least one color component of the current video unit.

Abstract translation: 根据某些方面的用于编码视频数据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诸如基本层视频信息和增强层视频信息的视频信息。 处理器被配置为至少基于加权层间预测器和当前视频单元的至少一个颜色分量的加权层内预测器来确定增强层视频信息的当前视频单元的值。