公开(公告)号：US20200213589A1

公开(公告)日：2020-07-02

申请号：US16733033

申请日：2020-01-02

Applicant: QUALCOMM Incorporated

Inventor： Nikolay Mikhaylovich SHLYAKHOV ,  Dmytro RUSANOVSKYY ,  Nan HU ,  Hilmi Enes EGILMEZ ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/177 ,  H04N19/577

Abstract: This disclosure describes techniques for managing filter information for use with adaptive loop filter or any other in-loop filter in video encoder or decoder. In particular, a temporal buffer is managed to store filter coefficients for pictures of a group of pictures based on whether a picture is the starting point the group of pictures.

公开(公告)号：US20190387247A1

公开(公告)日：2019-12-19

申请号：US16443113

申请日：2019-06-17

Applicant: QUALCOMM Incorporated

Inventor： Han HUANG ,  Wei-Jung CHIEN ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/61 ,  H04N19/107

Abstract: A method of decoding video data comprising parsing a sub-prediction unit motion flag from received encoded video data, deriving a list of sub-prediction unit level motion prediction candidates if the sub-prediction unit motion flag is active, deriving a list of prediction unit level motion prediction candidates if the sub-prediction unit motion flag is not active, and decoding the encoded video data using a selected motion vector predictor.

公开(公告)号：US20190007705A1

公开(公告)日：2019-01-03

申请号：US16020511

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

Inventor： Xin ZHAO ,  Vadim SEREGIN ,  Amir SAID ,  Marta KARCZEWICZ

IPC: H04N19/61 ,  H04N19/176 ,  H04N19/50 ,  H04N19/18

Abstract: Techniques are described in which a decoder is configured to receive an input data block and apply an inverse non-separable transform to at least part of the input data block to generate an inverse non-separable transform output coefficient block. The applying the inverse non-separable transform comprises assigning a window, assigning a weight for each position inside the assigned window, and determining the inverse non-separable transform output coefficient block based on the assigned weights. The decoder is further configured to forming a decoded video block based on the determined inverse non-separable transform output coefficient block, wherein forming the decoded video block comprises summing the residual video block with one or more predictive blocks.

公开(公告)号：US20150271526A1

公开(公告)日：2015-09-24

申请号：US14657617

申请日：2015-03-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/124 ,  H04N19/172 ,  H04N19/187 ,  H04N19/188 ,  H04N19/30 ,  H04N19/31 ,  H04N19/46 ,  H04N19/60

Abstract: According to certain aspects, an apparatus for coding video information includes a memory and a processor configured to determine whether a first syntax element is present in a bitstream, the first syntax element associated with a sequence parameter set (SPS) and a first flag indicative of whether a temporal identifier (ID) of a reference picture for pictures that refer to the SPS can be nested; and in response to determining that the first syntax element is not present in the bitstream: obtain a second syntax element indicative of a maximum number of temporal sub-layers in a particular layer of the plurality of layers; and determine whether to set the first flag equal to a second flag indicative of whether a temporal ID of a reference picture for any pictures can be nested based at least in part on a value of the second syntax element.

Abstract translation: 根据某些方面，用于对视频信息进行编码的装置包括存储器和处理器，其被配置为确定位流中是否存在第一语法元素，与序列参数集（SPS）相关联的第一语法元素以及指示 是否可以嵌套参考SPS的图片的参考图片的时间标识符（ID）; 并且响应于确定所述第一语法元素不存在于所述比特流中：获得指示所述多个层的特定层中的最大数量的时间子层的第二语法元素; 并且确定是否将所述第一标志设置为等于指示用于任何图片的参考图片的时间ID是否可以至少部分地基于所述第二语法元素的值来嵌套的第二标志。

公开(公告)号：US20150271506A1

公开(公告)日：2015-09-24

申请号：US14657624

申请日：2015-03-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/169 ,  H04N19/124 ,  H04N19/60 ,  H04N19/187 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/124 ,  H04N19/172 ,  H04N19/187 ,  H04N19/188 ,  H04N19/30 ,  H04N19/31 ,  H04N19/46 ,  H04N19/60

Abstract: An apparatus for coding video information according to certain aspects includes a memory and a processor. The memory is configured to store video information associated with one or more layers. The processor is configured to code a current access unit (AU) in a bitstream including a plurality of layers, the plurality of layers including a reference layer and at least one corresponding enhancement layer. The processor is further configured to code a first end of sequence (EOS) network abstraction layer (NAL) unit associated with the reference layer in the current AU, the first EOS NAL unit having the same layer identifier (ID) as the reference layer. The processor is also configured to code a second EOS NAL unit associated with the enhancement layer in the current AU, the second EOS NAL unit having the same layer ID as the enhancement 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和处理器。 存储器被配置为存储与一个或多个层相关联的视频信息。 处理器被配置为对包括多个层的比特流中的当前访问单元（AU）进行编码，所述多个层包括参考层和至少一个对应的增强层。 处理器还被配置为对与当前AU中的参考层相关联的序列（EOS）网络抽象层（NAL）单元进行编码，第一EOS NAL单元具有与参考层相同的层标识符（ID）。 处理器还被配置为对与当前AU中的增强层相关联的第二EOS NAL单元进行编码，第二EOS NAL单元具有与增强层相同的层ID。

公开(公告)号：US20150023419A1

公开(公告)日：2015-01-22

申请号：US14334417

申请日：2014-07-17

Applicant: QUALCOMM INCORPORATED

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

IPC: H04N19/30 ,  H04N19/174 ,  H04N19/577

CPC classification number: H04N19/105 ,  H04N19/157 ,  H04N19/174 ,  H04N19/30 ,  H04N19/33 ,  H04N19/577 ,  H04N19/70

Abstract: An apparatus configured to code video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a reference layer and an enhancement layer, the reference layer comprising a reference layer (RL) picture having a first slice and a second slice, and the enhancement layer comprising an enhancement layer (EL) picture corresponding to the RL picture. The processor is configured to generate an inter-layer reference picture (ILRP) by upsampling the RL picture, the ILRP having a single slice associated therewith, set slice information of the single slice of the ILRP equal to slice information of the first slice, and use the ILRP to code at least a portion of the EL picture. 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通信的存储器和处理器。 所述存储器被配置为存储与参考层和增强层相关联的视频信息，所述参考层包括具有第一切片和第二切片的参考层（RL）图像，所述增强层包括增强层（EL）图像 对应于RL图片。 处理器被配置为通过对RL图像进行上采样来产生层间参考图片（ILRP），ILRP具有与其相关联的单个切片，将ILRP的单个切片的切片信息设置为等于第一切片的切片信息，以及 使用ILRP来编码EL图片的至少一部分。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140241437A1

公开(公告)日：2014-08-28

申请号：US14184633

申请日：2014-02-19

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Ye-Kui WANG ,  Xiang LI

IPC: H04N19/29

CPC classification number: H04N19/105 ,  H04N19/134 ,  H04N19/187 ,  H04N19/29 ,  H04N19/33 ,  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, the RL comprising an RL picture having an output region that includes a portion of the RL picture. The processor is configured to determine whether a condition indicates that information outside of the output region is available to predict a current block in the enhancement layer. 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）和增强层相关联的视频信息，RL包括具有包括RL图像的一部分的输出区域的RL图像。 处理器被配置为确定条件是否指示输出区域之外的信息可用于预测增强层中的当前块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140098881A1

公开(公告)日：2014-04-10

申请号：US14043706

申请日：2013-10-01

Applicant: QUALCOMM Incorporated

Inventor： Ying CHEN ,  Vadim SEREGIN

IPC: H04N7/34

CPC classification number: H04N19/33 ,  H04N19/52

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 first layer having a first spatial resolution and a corresponding second layer having a second spatial resolution, wherein the first spatial resolution is less than the second spatial resolution. The video information includes at least motion field information associated with the first layer. The processor upsamples the motion field information associated with the first layer. The processor further adds an inter-layer reference picture including the upsampled motion field information in association with an upsampled texture picture of the first layer to a reference picture list to be used for inter prediction. The processor may encode or decode the 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具有第一空间分辨率的第一层相关联的视频信息和具有第二空间分辨率的对应的第二层，其中第一空间分辨率小于第二空间分辨率。 视频信息至少包括与第一层相关联的运动场信息。 处理器对与第一层相关联的运动场信息进行采样。 处理器还将包括上采样的运动场信息的层间参考图像与第一层的上采样纹理图像相关联以用于帧间预测的参考图片列表。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140044162A1

公开(公告)日：2014-02-13

申请号：US13959635

申请日：2013-08-05

Applicant: QUALCOMM Incorporated

Inventor： Liwei GUO ,  Jianle CHEN ,  Chengjie TU ,  Marta KARCZEWICZ ,  Xiang LI ,  Vadim SEREGIN

IPC: H04N7/26

CPC classification number: H04N19/52 ,  H04N19/119 ,  H04N19/122 ,  H04N19/139 ,  H04N19/147 ,  H04N19/187 ,  H04N19/30 ,  H04N19/50

Abstract: Systems and methods for determining information about an enhancement layer of digital video based on information included in a base layer of digital video are described. In one innovative aspect, an apparatus for coding digital video is provided. The apparatus includes a memory for storing a base layer of digital video information and an enhancement layer of digital video information. The apparatus determines a syntax element value for a portion of the enhancement layer based on a syntax element value for a corresponding portion of the base layer. Decoding devices and methods as well as corresponding encoding devices and methods are described.

Abstract translation: 描述了基于数字视频基础层中包含的信息确定关于数字视频增强层的信息的系统和方法。 在一个创新的方面，提供了一种用于编码数字视频的装置。 该装置包括用于存储数字视频信息的基础层和数字视频信息的增强层的存储器。 该装置基于用于基本层的对应部分的语法元素值来确定增强层的一部分的语法元素值。 描述设备和方法的解码以及对应的编码设备和方法。

公开(公告)号：US20140016701A1

公开(公告)日：2014-01-16

申请号：US13937130

申请日：2013-07-08

Applicant: QUALCOMM Incorporated

Inventor： Ying CHEN ,  Vadim SEREGIN ,  Marta KARCZEWICZ ,  Li ZHANG

IPC: H04N7/36

CPC classification number: H04N19/503 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172

Abstract: A first reference index value indicates a position, within a reference picture list associated with a current prediction unit (PU) of a current picture, of a first reference picture. A reference index of a co-located PU of a co-located picture indicates a position, within a reference picture list associated with the co-located PU of the co-located picture, of a second reference picture. When the first reference picture and the second reference picture belong to different reference picture types, a video coder sets a reference index of a temporal merging candidate to a second reference index value. The second reference index value is different than the first reference index value.

Abstract translation: 第一参考索引值指示与第一参考图片的当前图片的当前预测单元（PU）相关联的参考图片列表内的位置。 同位置图片的同位置PU的参考索引指示与第二参考图片的同位置图片的同位置PU相关联的参考图片列表内的位置。 当第一参考图像和第二参考图像属于不同的参考图像类型时，视频编码器将时间合并候选的参考索引设置为第二参考索引值。 第二参考索引值不同于第一参考索引值。