公开(公告)号：US20200344473A1

公开(公告)日：2020-10-29

申请号：US16842343

申请日：2020-04-07

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Nan HU ,  Muhammed Zeyd COBAN ,  Marta KARCZEWICZ

IPC: H04N19/117 ,  H04N19/169

Abstract: Techniques are described for adaptation parameter sets (APS) for adaptive loop filter (ALF) parameters. One example involves obtaining an APS ID value and an APS type value associated with a NAL unit from a bitstream. A first APS associated with at least a portion of at least one picture is identified, with the first APS being uniquely identified by a combination of the APS type value and the APS identifier value, and the APS identifier value of the first APS is in a range based on the APS type value. The portion of the at least one picture is then reconstructed using an adaptive loop filter with parameters defined by the first APS uniquely identified by the APS type value and the APS identifier value.

公开(公告)号：US20200221078A1

公开(公告)日：2020-07-09

申请号：US16725487

申请日：2019-12-23

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Nan HU ,  Cheng-Teh HSIEH ,  Marta KARCZEWICZ

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/30 ,  H04N19/186 ,  H04N19/176

Abstract: Techniques are described herein for processing video data. For instance, a current block of a picture of the video data can be obtained, and it can be determined that the current block includes more than one virtual pipeline data unit (VPDU). Current neighbor samples for the current block, reference neighbor samples for the current block, and additional neighbor samples for the current block can be obtained for illumination compensation. One or more illumination compensation parameters can be determined for the current block using the current neighbor samples, the reference neighbor samples, and the additional neighbor samples. The additional neighbor samples are used for determining the one or more illumination compensation parameters based on the current block covering more than one VPDU. Illumination compensation can be performed for the current block using the one or more illumination compensation parameters.

公开(公告)号：US20140362902A1

公开(公告)日：2014-12-11

申请号：US14298308

申请日：2014-06-06

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ye-Kui WANG

IPC: H04N19/105 ,  H04N19/177 ,  H04N19/159

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

Abstract: An apparatus for coding video information according to certain aspects includes computing hardware. The computing hardware is configured to: identify a current picture to be predicted using at least one type of inter layer prediction (ILP), the type of ILP comprising one or more of inter layer motion prediction (ILMP) or inter layer sample prediction (ILSP); and control: (1) a number of pictures that may be resampled and used to predict the current picture using ILMP and (2) a number of pictures that may be resampled and used to predict the current picture using ILSP, wherein the computing hardware is configured to control the number of pictures that may be resampled and used to predict the current picture using ILMP independent of the number of pictures that may be resampled and used to predict the current picture using ILSP.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括计算硬件。 计算硬件被配置为：使用至少一种类型的层间预测（ILP）来识别要预测的当前图像，包括层间运动预测（ILMP）或层间样本预测（ILSP）中的一个或多个的ILP的类型 ）; 并且控制：（1）可以重新采样并用于使用ILMP来预测当前图像的数量的图像;以及（2）可重新采样并用于使用ILSP预测当前图像的多个图像，其中计算硬件是 被配置为控制可以被重新采样并用于使用ILMP来预测当前图像的图像数量，而不依赖于可以重采样并用于使用ILSP预测当前图像的图像数量。

公开(公告)号：US20140355676A1

公开(公告)日：2014-12-04

申请号：US14287797

申请日：2014-05-27

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN

IPC: H04N19/30

CPC classification number: H04N19/33 ,  H04N19/42 ,  H04N19/513

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 a reference layer picture and an enhancement layer picture. The processor is configured to: store video information associated with a reference layer picture and an enhancement layer picture; receive a scale factor that indicates a proportion of scaling between the reference layer picture and the enhancement layer picture in a first direction; determine, without performing a division operation, a rounding offset value using the scale factor; and determine a coordinate in the first direction of a first sample located in the reference layer picture that corresponds to a second sample located in the enhancement layer picture using the scale factor and the rounding offset value.

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参考层图像和增强层图像相关联的视频信息。 处理器被配置为：存储与参考层图像和增强层图像相关联的视频信息; 接收在第一方向上指示参考层图像和增强层图像之间的缩放比例的比例因子; 在不执行除法运算的情况下，使用比例因子确定舍入偏移值; 并且使用比例因子和舍入偏移值来确定位于参考层图像中的与位于增强层图像中的第二样本相对应的第一样本的第一方向上的坐标。

公开(公告)号：US20140294097A1

公开(公告)日：2014-10-02

申请号：US14222459

申请日：2014-03-21

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ying CHEN

IPC: H04N19/30

CPC classification number: H04N19/105 ,  H04N19/187 ,  H04N19/31 ,  H04N19/58 ,  H04N19/597 ,  H04N19/70

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 reference layer and an enhancement layer, the enhancement layer comprising an enhancement layer (EL) picture and the reference layer comprising a reference layer (RL) picture. The processor is configured to generate an inter-layer reference picture (ILRP) by resampling the RL picture; and determine whether, at a predetermined time, a reference picture of the ILRP was a short-term or long-term reference picture with respect to the ILRP. 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参考层和增强层相关联的视频信息，增强层包括增强层（EL）图像，参考层包括参考层（RL）图像。 处理器被配置为通过重新采样RL图像来生成层间参考图片（ILRP）; 并且在预定时间确定ILRP的参考图片是否是关于ILRP的短期或长期参考图片。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140247879A1

公开(公告)日：2014-09-04

申请号：US14191311

申请日：2014-02-26

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Liwei GUO ,  Jianle CHEN ,  Krishnakanth RAPAKA

IPC: H04N19/30

CPC classification number: H04N19/33 ,  H04N19/43 ,  H04N19/513 ,  H04N19/52 ,  H04N19/55 ,  H04N19/61

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory unit configured to store video information associated with a base layer and/or an enhancement layer. The apparatus further comprises a processor operationally coupled to the memory unit. In one embodiment, the processor is configured to determine a scaling factor based on spatial dimension values associated with the base and enhancement layers such that the scaling factor is constrained within a predetermined range. The processor is also configured to spatially scale an element associated with the base layer or enhancement layer using the scaling factor and a temporal motion vector scaling process.

Abstract translation: 在一个实现中，提供了一种用于对视频信息进行编码或解码的装置。 该装置包括被配置为存储与基本层和/或增强层相关联的视频信息的存储器单元。 该装置还包括可操作地耦合到存储器单元的处理器。 在一个实施例中，处理器被配置为基于与基本和增强层相关联的空间维度值来确定缩放因子，使得缩放因子被限制在预定范围内。 处理器还被配置为使用缩放因子和时间运动矢量缩放处理来空间地缩放与基本层或增强层相关联的元素。

公开(公告)号：US20140140393A1

公开(公告)日：2014-05-22

申请号：US14080330

申请日：2013-11-14

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/12 ,  H04N19/124 ,  H04N19/134 ,  H04N19/136 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30

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 and an enhancement layer. The processor is configured to, in response to determining that the video information associated with the enhancement layer is to be determined based upon the video information associated with the base layer, select between a first transform and a second transform based at least in part on at least one of a transform unit (TU) size and a color component type of the enhancement layer video information.

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和增强层相关联的视频信息。 处理器被配置为响应于确定与增强层相关联的视频信息将基于与基本层相关联的视频信息来确定，至少部分地基于在第一变换和第二变换之间进行选择 增强层视频信息的变换单元（TU）尺寸和颜色分量类型中的至少一个。

公开(公告)号：US20140098880A1

公开(公告)日：2014-04-10

申请号：US14035129

申请日：2013-09-24

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Marta KARCZEWICZ ,  Ying CHEN

IPC: H04N7/36

CPC classification number: H04N19/159 ,  H04N19/176 ,  H04N19/33 ,  H04N19/463 ,  H04N19/517 ,  H04N19/52

Abstract: In one embodiment, an apparatus configured to code video data includes a processor and a memory unit. The memory unit stores video data associated with a first layer having a first spatial resolution and a second layer having a second spatial resolution. The video data associated with the first layer includes at least a first layer block and first layer prediction mode information associated with the first layer block, and the first layer block includes a plurality of sub-blocks where each sub-block is associated with respective prediction mode data of the first layer prediction mode information. The processor derives the predication mode data associated with one of the plurality of sub-blocks based at least on a selection rule, upsamples the derived prediction mode data and the first layer block, and associates the upsampled prediction mode data with each upsampled sub-block of the upsampled first layer block.

Abstract translation: 在一个实施例中，被配置为对视频数据进行编码的装置包括处理器和存储器单元。 存储单元存储与具有第一空间分辨率的第一层相关联的视频数据和具有第二空间分辨率的第二层。 与第一层相关联的视频数据至少包括与第一层块相关联的第一层块和第一层预测模式信息，并且第一层块包括多个子块，其中每个子块与相应的预测相关联 模式数据的第一层预测模式信息。 处理器至少基于选择规则导出与多个子块中的一个相关联的预测模式数据，对导出的预测模式数据和第一层块进行上采样，并将上采样的预测模式数据与每个上采样的子块相关联 的上采样第一层块。

公开(公告)号：US20130294513A1

公开(公告)日：2013-11-07

申请号：US13888173

申请日：2013-05-06

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim SEREGIN ,  Xianglin WANG

IPC: H04N7/36

CPC classification number: H04N19/52 ,  H04N19/30 ,  H04N19/513

Abstract: A method of decoding video data includes receiving syntax elements extracted from an encoded video bitstream, determining a candidate list for an enhancement layer block, and selectively pruning the candidate list. The syntax elements include information associated with a base layer block of a base layer of the video data. The candidate list is determined at least in part on motion information associated with the base layer block. The enhancement layer block is in an enhancement layer of the video data. The candidate list includes at least one motion information candidate that includes the motion information associated with the base layer block. The candidate list includes a merge list or an AMVP list. Pruning includes comparing one or more motion information candidates and at least one motion information candidate associated with the base layer block that is in the candidate list.

Abstract translation: 解码视频数据的方法包括接收从编码视频比特流中提取的语法元素，确定增强层块的候选列表，以及选择性地修剪候选列表。 语法元素包括与视频数据的基本层的基本层块相关联的信息。 候选列表至少部分地基于与基本层块相关联的运动信息来确定。 增强层块在视频数据的增强层中。 候选列表包括至少一个运动信息候选，其包括与基本层块相关联的运动信息。 候选列表包括合并列表或AMVP列表。 修剪包括比较一个或多个运动信息候选和与候选列表中的基本层块相关联的至少一个运动信息候选。

公开(公告)号：US20130272414A1

公开(公告)日：2013-10-17

申请号：US13861319

申请日：2013-04-11

Applicant: QUALCOMM INCORPORATED

Inventor： Joel SOLE ROJALS ,  Rajan Laxman JOSHI ,  Wei-Jung CHIEN ,  Jianle CHEN ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N7/50

CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/14 ,  H04N19/18 ,  H04N19/70

Abstract: A method of decoding data indicative of a subset of transform coefficients is described. The coefficients are indicative of a block of video data. The method may include determining that no transform coefficient in the subset of transform coefficients has an absolute value greater than one, and, based on the determining, skipping one or more decoding passes on the subset of transform coefficients, the decoding passes relating to decoding level information associated with the subset of transform coefficients.

Abstract translation: 描述了一种解码表示变换系数子集的数据的方法。 系数表示视频数据块。 该方法可以包括确定变换系数的子集中的变换系数不具有大于1的绝对值，并且基于确定，跳过变换系数子集上的一个或多个解码通过，与解码级相关的解码通过 与变换系数子集相关联的信息。