公开(公告)号：WO2019232412A1

公开(公告)日：2019-12-05

申请号：PCT/US2019/034964

申请日：2019-05-31

Applicant: QUALCOMM INCORPORATED

Inventor： KARCZEWICZ, Marta ,  GADDE, Akshay ,  SEREGIN, Vadim ,  CHIEN, Wei-Jung

IPC: H04N19/82 ,  H04N19/463 ,  H04N19/70 ,  H04N19/117 ,  H04N19/154 ,  H04N19/174

Abstract: A video encoder and video decoder may determine a set of adaptive loop filters, from among a plurality of sets of adaptive loop filters, on a per-block basis. Each set of adaptive loop filters may include filters from a previous picture, filters signaled for the current picture, and/or pre-trained filter. By varying the set of adaptive loop filters on a per-block basis, the adaptive loop filters available for each block of video data may be more adapted to local statistics of the video data.

公开(公告)号：WO2019232382A1

公开(公告)日：2019-12-05

申请号：PCT/US2019/034918

申请日：2019-05-31

Applicant: QUALCOMM INCORPORATED

Inventor： EGILMEZ, Hilmi Enes ,  CHAO, Yung-Hsuan ,  SAID, Amir ,  SEREGIN, Vadim ,  KARCZEWICZ, Marta ,  CHIEN, Wei-Jung

IPC: H04N19/12 ,  H04N19/70 ,  H04N19/96 ,  H04N19/463 ,  H04N19/91 ,  H04N19/176 ,  H04N19/122

Abstract: An example device for decoding video data includes a memory configured to store video data; and a processor implemented in circuitry and configured to decode a truncated unary codeword representing a multiple transform (MT) scheme for a current block of the video data to determine the MT scheme; apply the MT scheme to transform coefficients of the current block to produce residual data for the current block of video data; and decode the current block using the residual data. The MT scheme may include a plurality of transforms, such as a horizontal transform and a vertical transform, a primary transform and a second transform, or any combination of separable and/or nonseparable transforms. Thus, a single truncated unary codeword may represent the entire MT scheme, that is, each of a plurality of transforms of the MT scheme.

公开(公告)号：WO2019195280A1

公开(公告)日：2019-10-10

申请号：PCT/US2019/025372

申请日：2019-04-02

Applicant: QUALCOMM INCORPORATED

Inventor： KARCZEWICZ, Marta ,  SEREGIN, Vadim ,  HU, Nan ,  CHIEN, Wei-Jung

IPC: H04N19/159 ,  H04N19/122 ,  H04N19/96 ,  H04N19/136 ,  H04N19/18

Abstract: Embodiments include methods and apparatuses for decoding video data including receiving an encoded video bitstream that forms a representation of a coded picture of the video data and determining a partitioning of the coded picture of the video data into a plurality of coded unit. The partitioning may be according to a first tree structure and the plurality of coded units including a leaf node in the first tree structure. A method may further include determining that a residual block of the leaf node is recursively split into a plurality transform units according to a second tree structure.

公开(公告)号：WO2018231700A1

公开(公告)日：2018-12-20

申请号：PCT/US2018/036883

申请日：2018-06-11

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Yi-Wen ,  CHIEN, Wei-Jung ,  SUN, Yu-Chen ,  ZHANG, Li ,  LEE, Sungwon ,  LI, Xiang ,  CHUANG, Hsiao-Chiang ,  CHEN, Jianle ,  SEREGIN, Vadim ,  KARCZEWICZ, Marta

IPC: H04N19/52

Abstract: A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

公开(公告)号：WO2018013953A1

公开(公告)日：2018-01-18

申请号：PCT/US2017/042181

申请日：2017-07-14

Applicant: QUALCOMM INCORPORATED

Inventor： ZHAO, Xin ,  SEREGIN, Vadim ,  KARCZEWICZ, Marta ,  CHEN, Jianle

IPC: H04N19/176 ,  H04N19/61 ,  H04N19/12

Abstract: Example techniques are described to illustrate multiple transform applied for Intra prediction residual. It may be used in the context of advanced video codecs, such as extensions of HEVC or the next generation of video coding standards. A video encoder and a video decoder may select transform subsets that each identify one or more candidate transforms. The video encoder and the video decoder may determine transforms from the selected transform subsets.

Abstract translation: 描述示例技术来说明应用于帧内预测残差的多重变换。 它可以用于高级视频编解码器的上下文中，诸如HEVC的扩展或下一代视频编码标准。 视频编码器和视频解码器可以选择每个识别一个或多个候选变换的变换子集。 视频编码器和视频解码器可以确定来自所选变换子集的变换。

公开(公告)号：WO2017165509A1

公开(公告)日：2017-09-28

申请号：PCT/US2017/023577

申请日：2017-03-22

Applicant: QUALCOMM INCORPORATED

Inventor： ZHAO, Xin ,  SEREGIN, Vadim ,  JOSHI, Rajan Laxman ,  SAID, Amir ,  LI, Xiang ,  KARCZEWICZ, Marta ,  CHEN, Jianle ,  CHIEN, Wei-Jung

IPC: H04N19/176 ,  H04N19/70 ,  H04N19/134 ,  H04N19/122 ,  H04N19/61 ,  H04N19/103

Abstract: An example device for decoding encoded video data includes storage media and processing circuitry. The storage media are configured a portion of the encoded video data. The processing circuitry is configured to determine a block-level threshold for the portion of the encoded video data stored to the storage media, to determine that an encoded block of the portion of the encoded video data has a size that is equal to or greater than the threshold, to receive a syntax element indicating that a portion of the encoded block is to be reconstructed using a coding tool, to determine, based on the encoded block having the size that is equal to or greater than the threshold, that the syntax element applies to all samples of a plurality of samples included in the encoded block, and to reconstruct the encoded block based on the coding tool.

Abstract translation: 用于对经编码的视频数据进行解码的示例设备包括存储介质和处理电路。 存储介质被配置成编码的视频数据的一部分。 处理电路被配置为确定存储到存储介质的编码视频数据的一部分的块级阈值，以确定编码视频数据的该部分的编码块具有等于或大于 所述阈值接收指示编码块的一部分将被使用编码工具重建的语法元素以基于具有等于或大于所述阈值的大小的编码块来确定所述语法元素 适用于编码块中包括的多个样本的所有样本，并且基于编码工具重建编码块。

公开(公告)号：WO2017165395A1

公开(公告)日：2017-09-28

申请号：PCT/US2017/023378

申请日：2017-03-21

Applicant: QUALCOMM INCORPORATED

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

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/167 ,  H04N19/176

Abstract: A method of decoding video data comprising receiving a block of video data encoded using a position dependent intra prediction combination (PDPC) mode, the block of video data having a non-square shape defined by a width and a height, determining one or more PDPC parameters based on one or more of the width or the height of the block of video data, and decoding the block of video data using the PDPC mode and the determined PDPC parameters.

Abstract translation: 一种解码视频数据的方法，包括：接收使用依赖于位置的帧内预测组合（PDPC）模式编码的视频数据块，所述视频数据块具有由宽度限定的非正方形形状;以及 基于视频数据块的宽度或高度中的一个或多个来确定一个或多个PDPC参数，并且使用PDPC模式和所确定的PDPC参数对视频数据块进行解码。

公开(公告)号：WO2017048849A1

公开(公告)日：2017-03-23

申请号：PCT/US2016/051745

申请日：2016-09-14

Applicant: QUALCOMM INCORPORATED

Inventor： SEREGIN, Vadim ,  JOSHI, Rajan Laxman ,  KARCZEWICZ, Marta

IPC: H04N19/186 ,  H04N19/593 ,  H04N19/70 ,  H04N19/176 ,  H04N19/463 ,  H04N19/93 ,  H04N19/105

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70 ,  H04N19/93

Abstract: A device for decoding video data includes a memory configured to store the video data; and one or more processors configured to receive, in a picture parameter set (PPS), a first syntax element indicating that a palette predictor is to be generated using PPS-level palette predictor initializers; receive, in the PPS, a second syntax element indicating a number of the PPS-level palette predictor initializers included in the PPS is equal to zero; and decode a block of video data based on the first syntax element and the second syntax element.

Abstract translation: 用于解码视频数据的设备包括被配置为存储视频数据的存储器; 以及一个或多个处理器，被配置为在图像参数集（PPS）中接收指示使用PPS级调色板预测器初始化器生成调色板预测器的第一语法元素; 在PPS中接收指示包括在PPS中的PPS级调色板预测器初始化器的数量的第二语法元素等于零; 以及基于所述第一语法元素和所述第二语法元素对视频数据块进行解码。

公开(公告)号：WO2016201032A1

公开(公告)日：2016-12-15

申请号：PCT/US2016/036572

申请日：2016-06-09

Applicant: QUALCOMM INCORPORATED

Inventor： JOSHI, Rajan Laxman ,  SEREGIN, Vadim ,  PU, Wei ,  ZOU, Feng ,  KARCZEWICZ, Marta

IPC: H04N19/176 ,  H04N19/70 ,  H04N19/91 ,  H04N19/186 ,  H04N19/93

CPC classification number: H04N19/119 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70 ,  H04N19/91 ,  H04N19/93

Abstract: An example method of coding video data includes coding, from a coded video bitstream, a syntax element that indicates whether a transpose process is applied to palette indices of a palette for a current block of video data; decoding, from the coded video bitstream and at a positon in the coded video bitstream that is after the syntax element that indicates whether the transpose process is applied to palette indices of the palette for the current block of video data, one or more syntax elements related to delta quantization parameter (QP) and/or chroma QP offsets for the current block of video data; and decoding the current block of video data based on the palette for the current block of video data and the one or more syntax elements related to delta QP and/or chroma QP offsets for the current block of video data.

Abstract translation: 编码视频数据的示例性方法包括从编码视频比特流中编码一个语法元素，该语法元素指示转置处理是否应用于当前视频数据块的调色板的调色板索引; 从经编码的视频比特流和编码视频比特流中位于语法元素之后的位置的解码，该语法元素指示转置处理是否被应用于当前视频数据块的调色板的调色板索引，一个或多个语法元素相关 到当前视频数据块的Δ量化参数（QP）和/或色度QP偏移量; 以及基于用于当前视频数据块的调色板和与当前视频数据块的delta QP和/或chroma QP偏移相关的一个或多个语法元素来解码当前视频数据块。

公开(公告)号：WO2016057701A1

公开(公告)日：2016-04-14

申请号：PCT/US2015/054537

申请日：2015-10-07

Applicant: QUALCOMM INCORPORATED

Inventor： PANG, Chao ,  WANG, Ye-Kui ,  RAPAKA, Krishnakanth ,  SEREGIN, Vadim ,  KARCZEWICZ, Marta

IPC: H04N19/52 ,  H04N19/70

CPC classification number: H04N19/593 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/70

Abstract: In general, the disclosure describes techniques related to block vector coding for Intra Block Copy and Inter modes. In one example, the disclosure is directed to a video coding device comprising a memory configured to store video data and one or more processors. The video coding device is configured to determine a reference picture used for coding the current video block and determine a picture order count (POC) value for the reference picture. In response to the POC value for the reference picture being equal to a POC value for a current picture that includes the current video block, the video coding device sets a value of a syntax element to indicate that a reference picture list includes the current picture. Otherwise, the video coding device sets the value of the syntax element to indicate that the reference picture list does not include the current picture.

Abstract translation: 通常，本公开描述了与块内复制和帧间模式的块向量编码有关的技术。 在一个示例中，本公开涉及一种视频编码设备，包括被配置为存储视频数据的存储器和一个或多个处理器。 视频编码装置被配置为确定用于对当前视频块进行编码的参考图像，并且确定参考图像的图像顺序计数（POC）值。 响应于参考图像的POC值等于包括当前视频块的当前图像的POC值，视频编码装置设置语法元素的值以指示参考图片列表包括当前图片。 否则，视频编码装置设置语法元素的值，以指示参考图片列表不包括当前图片。