公开(公告)号：US10230980B2

公开(公告)日：2019-03-12

申请号：US15005934

申请日：2016-01-25

Applicant: QUALCOMM Incorporated

Inventor： Hongbin Liu ,  Ying Chen ,  Jianle Chen ,  Xiang Li ,  Marta Karczewicz

IPC: H04N19/583 ,  H04N19/44 ,  H04N19/176 ,  H04N19/423 ,  H04N19/167 ,  H04N19/70

Abstract: In an example, a method of decoding video data may include receiving a first block of video data. The first block of video data may be a sub-block of a prediction unit. The method may include receiving one or more blocks of video data that neighbor the first block of video data. The method may include determining motion information of at least one of the one or more blocks of video data that neighbor the first block of video data. The method may include decoding, using overlapped block motion compensation, the first block of video data based at least in part on the motion information of the at least one of the one or more blocks that neighbor the first block of video data.

公开(公告)号：US10212444B2

公开(公告)日：2019-02-19

申请号：US15404634

申请日：2017-01-12

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Li Zhang ,  Wei-Jung Chien ,  Jianle Chen ,  Xin Zhao ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N11/02 ,  H04N19/44 ,  H04N19/105 ,  H04N19/50 ,  H04N19/176 ,  H04N19/119 ,  H04N19/172 ,  H04N19/136 ,  H04N19/60 ,  H04N19/70

Abstract: A method of decoding video data including receiving a bitstream that includes a sequence of bits that forms a representation of a coded picture of the video data, partitioning the coded picture of the video data into a plurality of blocks using three or more different partition structures, and reconstructing the plurality of blocks of the coded picture of the video data. Partitioning the coded picture of the video data may include partitioning the coded picture of the video data into the plurality of blocks using the three or more different partition structures, wherein at least three of the three or more different partition structures may be used at each depth of a tree structure that represents how a particular block of the coded picture of the video data is partitioned.

公开(公告)号：US20180278942A1

公开(公告)日：2018-09-27

申请号：US15926550

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Kai Zhang ,  Jianle Chen ,  Xiang Li ,  Marta Karczewicz

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/61

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/139 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61

Abstract: A method of decoding video data, including receiving a first block of video data encoded using an inter-prediction mode associating a first intra-prediction mode with the first block of video data, wherein the first intra-prediction mode is associated with a second block of video data, and determining a second intra-prediction mode for a neighbor block of video data based at least in part on the first intra-prediction mode.

公开(公告)号：US20180199062A1

公开(公告)日：2018-07-12

申请号：US15866287

申请日：2018-01-09

Applicant: QUALCOMM Incorporated

Inventor： Kai Zhang ,  Jianle Chen ,  Vadim Seregin ,  Hsiao-Chiang Chuang ,  Xiang Li ,  Li Zhang ,  Cheng-Teh Hsieh ,  Marta Karczewicz

IPC: H04N19/593 ,  H04N19/59 ,  H04N19/13 ,  H04N19/96

Abstract: A video decoder determines a current block of a current picture of video data has a size of P×Q, wherein P is a first value corresponding to a width of the current block and Q is a second value corresponding to a height of the current block, wherein P is not equal to Q, wherein the current block includes a short side and a long side, and wherein the first value added to the second value does not equal a value that is a power of 2; decodes the current block of video data using intra DC mode prediction, wherein decoding the current block of video data using intra DC mode prediction comprises performing a shift operation to calculate a DC value and generating a prediction block for the current block of video data using the calculated DC value; and outputs a decoded version of the current picture.

公开(公告)号：US09998742B2

公开(公告)日：2018-06-12

申请号：US15006994

申请日：2016-01-26

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Hongbin Liu ,  Ying Chen ,  Li Zhang ,  Xiang Li ,  Xin Zhao ,  Marta Karczewicz

IPC: H04N19/186 ,  H04N19/463 ,  H04N19/105 ,  H04N19/593

CPC classification number: H04N19/186 ,  H04N19/105 ,  H04N19/463 ,  H04N19/593

Abstract: A system and method for encoding and decoding video data. A predicted residual signal of a target color component is determined as a function of one or more linear parameters of a linear model and of a residual signal of a source color component. A residual signal of the target color component is determined as a function of a remaining residual signal of the target color component and of the predicted residual signal of the target color component.

公开(公告)号：US20180098087A1

公开(公告)日：2018-04-05

申请号：US15719203

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Jianle Chen ,  Hsiao-Chiang Chuang ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/139 ,  H04N19/147 ,  H04N19/156 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/537 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

Abstract: Methods, apparatuses, and computer-readable medium are provided for a frame rate up-conversion coding mode, where a bilateral matching mode can be used to determine motion information. In various implementations, local illumination compensation is disallowed from being used for a block when a bilateral matching mode is used for the block. In various implementations, a bilateral matching mode is disallowed from being used when local illumination compensation is used for the block.

公开(公告)号：US20180098072A1

公开(公告)日：2018-04-05

申请号：US15719424

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Xiang Li ,  Marta Karczewicz

IPC: H04N19/13 ,  H04N19/117 ,  H04N19/124 ,  H04N19/137 ,  H04N19/107

CPC classification number: H04N19/13 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/137 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/82 ,  H04N19/91

Abstract: A device for processing video data stores one or more context statuses for a binary arithmetic coder at a bit depth of K; initializes an N-bit binary arithmetic coder with values for context variables for one of the one or more stored context statuses from previously coded blocks; codes the one or more blocks of the video data with the initialized N-bit binary arithmetic coder, wherein N and K are both positive integer values and K is smaller than N. A device for processing video data determines a set of one or more fixed filters with K-bit precision and determines a set of one or more derived filters with N-bit precision based on the set of one or more fixed filters with K-bit precision, wherein K and N are integers and K is less than N.

公开(公告)号：US20180098070A1

公开(公告)日：2018-04-05

申请号：US15713112

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Kai Zhang ,  Done Bugdayci Sansli ,  Marta Karczewicz ,  Wei-Jung Chien ,  Yu-Chen Sun

IPC: H04N19/126 ,  H04N19/11 ,  H04N19/139

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/126 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/198 ,  H04N19/43 ,  H04N19/44 ,  H04N19/51 ,  H04N19/553 ,  H04N19/577 ,  H04N19/61 ,  H04N19/625

Abstract: Techniques and systems are provided for processing video data. For example, a current block of a picture of the video data can be obtained for processing by an encoding device or a decoding device. A pre-defined set of weights for template matching based motion compensation are also obtained. A plurality of metrics associated with one or more spatially neighboring samples of the current block and one or more spatially neighboring samples of at least one reference frame are determined. A set of weights are selected from the pre-defined set of weights to use for the template matching based motion compensation. The set of weights is determined based on the plurality of metrics. The template matching based motion compensation is performed for the current block using the selected set of weights.

公开(公告)号：US20180098063A1

公开(公告)日：2018-04-05

申请号：US15725052

申请日：2017-10-04

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Li Zhang ,  Yu-Chen Sun ,  Jianle Chen ,  Marta Karczewicz

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

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/52 ,  H04N19/537

Abstract: A video decoder selects a source affine block. The source affine block is an affine-coded block that spatially neighbors a current block. Additionally, the video decoder extrapolates motion vectors of control points of the source affine block to determine motion vector predictors for control points of the current block. The video decoder inserts, into an affine motion vector predictor (MVP) set candidate list, an affine MVP set that includes the motion vector predictors for the control points of the current block. The video decoder also determines, based on an index signaled in a bitstream, a selected affine MVP set in the affine MVP set candidate list. The video decoder obtains, from the bitstream, motion vector differences (MVDs) that indicate differences between motion vectors of the control points of the current block and motion vector predictors in the selected affine MVP set.

公开(公告)号：US20180020218A1

公开(公告)日：2018-01-18

申请号：US15649612

申请日：2017-07-13

Applicant: QUALCOMM Incorporated

Inventor： Xin Zhao ,  Vadim Seregin ,  Marta Karczewicz ,  Jianle Chen

IPC: H04N19/124 ,  H04N19/103

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.