公开(公告)号：US11800152B2

公开(公告)日：2023-10-24

申请号：US17836337

申请日：2022-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Roman Igorevich Chernyak ,  Timofey Mikhailovich Solovyev ,  Sergey Yurievich Ikonin ,  Alexander Alexandrovich Karabutov ,  Jianle Chen

IPC: H04N19/105 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/70 ,  H04N19/176 ,  H04N19/184

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184

Abstract: The present disclosure relates to methods and apparatuses for encoding video data into a bitstream and for decoding video data received in a bitstream. A second control flag indicating whether or not to use multi-hypothesis prediction for intra and inter mode is generated and transmitted only conditionally, upon a determination whether or not separate merge list technique for subblock merge candidates is used. On the other hand, a decoder is capable of deciding usage of multi-hypothesis prediction for intra and inter mode and separate merge list technique for subblock merge candidates even though the second control flag is transmitted only conditionally.

公开(公告)号：US11785220B2

公开(公告)日：2023-10-10

申请号：US17565243

申请日：2021-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianle Chen ,  F N U Hendry

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46

CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46

Abstract: A method of decoding includes receiving a first picture parameter set and a second picture parameter set each referring to same sequence parameter set, the first picture parameter set and the second picture parameter set having same values of a conformance window when the first picture parameter set and the second picture parameter set have same values of picture width and picture height, and applying the conformance window to a current picture corresponding to the first picture parameter set or the second picture parameter set.

公开(公告)号：US11750835B2

公开(公告)日：2023-09-05

申请号：US17172088

申请日：2021-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Semih Esenlik ,  Han Gao ,  Jianle Chen ,  Anand Meher Kotra ,  Biao Wang

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/56 ,  H04N19/96

CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/56 ,  H04N19/96

Abstract: An apparatus and method for marking availability of a candidate coding block for merge estimation of a current coding block within a coding tree unit, CTU, which includes multiple coding blocks. Initially, the candidate coding block is marked as available. The candidate coding block is marked as unavailable when a predefined location of the candidate coding block is included within an extended merge estimation region, MER. The extended MER includes a current MER in which the current coding block is located and at least a portion of another MER, adjacent to the current MER.

公开(公告)号：US20230254485A1

公开(公告)日：2023-08-10

申请号：US18162439

申请日：2023-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Han Gao ,  Semih Esenlik ,  Biao Wang ,  Anand Meher Kotra ,  Jianle Chen

IPC: H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/625 ,  H04N19/70

CPC classification number: H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/625 ,  H04N19/70

Abstract: The present disclosure provides methods and devices. A video method of coding implemented by a decoding device, comprising: when a prediction mode of a current coding block is intra prediction, and the current coding block is processed by using Intra sub-partition coding mode, determining whether a width of a current transform block is larger than or equal to a first threshold or not, and whether the width of the current transform block is smaller than or equal to a second threshold or not, the current transform block corresponding to the current coding block; when the width of the current transform block is larger than or equal to the first threshold and the width of the current transform block is smaller than or equal to the second threshold, performing transform process on the current transform block, wherein a transform core based on DST 7 is used on horizontal direction transform.

公开(公告)号：US11689729B2

公开(公告)日：2023-06-27

申请号：US17142185

申请日：2021-01-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy ,  Jianle Chen

IPC: H04N19/159 ,  H04N19/103 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/80

CPC classification number: H04N19/159 ,  H04N19/103 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/80

Abstract: A method of intra prediction of a block in a picture of a video is provided. The method includes obtaining an intra prediction mode of the block; determining whether the intra prediction mode of the block is a wide-angle mode; filtering reference samples for the block based, at least in part, upon determining that the intra prediction mode of the block is the wide-angle mode; and generating predicted samples of the block based on filtered reference samples.

公开(公告)号：US11688104B2

公开(公告)日：2023-06-27

申请号：US17215224

申请日：2021-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vladyslav Zakharchenko ,  Jianle Chen

IPC: H04N19/597 ,  H04N19/56 ,  H04N19/52 ,  G06T9/00 ,  G06T17/00

CPC classification number: G06T9/00 ,  G06T17/00 ,  H04N19/52 ,  H04N19/56 ,  H04N19/597 ,  G06T2210/56

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing motion estimation. In some implementations, a method includes generating a segmentation of point cloud data based on continuity data of the point cloud data. A representation of the segmented point cloud data is projected onto sides of a three-dimensional bounding box. Patches are generated based on the projected representation of the segmented point cloud data. A first frame of the patches is generated. First and second auxiliary information is generated using the first frame and a reference frame. A first patch from the first frame is identified that matches a patch from the reference frame based on the first and second auxiliary information. A motion vector candidate is generated between the first and second patch based on a difference between the first and second auxiliary information. Motion compensation is performed using the motion vector candidate.

公开(公告)号：US20230156184A1

公开(公告)日：2023-05-18

申请号：US18156943

申请日：2023-01-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang ,  Jianle Chen

IPC: H04N19/107 ,  H04N19/162 ,  H04N19/172 ,  H04N19/46 ,  H04N19/169 ,  H04N19/30 ,  H04N19/14 ,  H04N19/174

CPC classification number: H04N19/107 ,  H04N19/162 ,  H04N19/172 ,  H04N19/46 ,  H04N19/188 ,  H04N19/30 ,  H04N19/14 ,  H04N19/174 ,  H04N19/1883

Abstract: A method of decoding a coded video bitstream implemented by a video decoder is disclosed. The method includes determining that a coded video sequence (CVS) of the coded video bitstream includes a video coding layer (VCL) network abstraction layer (NAL) unit having a gradual decoding refresh (GDR) network abstraction layer (NAL) unit type (GDR_NUT), the VCL NAL unit having the GDR_NUT containing a GDR picture; initiating decoding of the CVS at the GDR picture; and generating an image according to the CVS as decoded. A corresponding method of encoding is also disclosed.

公开(公告)号：US11652985B2

公开(公告)日：2023-05-16

申请号：US17360960

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fnu Hendry ,  Ye-Kui Wang ,  Jianle Chen

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/30

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/30

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream including a plurality of picture parameter sets (PPSs) and a plurality of pictures at a plurality of picture sizes. A first picture size of a first picture is determined from a first PPS. The first picture is decoded at the first picture size to create a decoded reference picture. The decoded reference picture is stored in a decoded picture buffer. A second picture size of a second picture is determined from a second PPS. The second picture references the decoded reference picture according to inter-prediction. The decoded reference picture is scaled from the first picture size to the second picture size. The second picture is decoded at the second picture size based on the decoded reference picture at the second picture size.

公开(公告)号：US20230128206A1

公开(公告)日：2023-04-27

申请号：US18146299

申请日：2022-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY ,  Jianle Chen

IPC: H04N19/593 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/119

Abstract: A method for intra prediction of a current block of a picture is provided. The method includes obtaining an aspect ratio of the current block according to a width and a height of the current block; obtaining a weighting factor based on the aspect ratio, and determining an intra-prediction value of the current block based on the weighting factor. Intra-prediction value of a current block may be obtained with high accuracy or low computational complexity, so as to improve coding efficiency.

公开(公告)号：US20230125381A1

公开(公告)日：2023-04-27

申请号：US18146372

申请日：2022-12-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Timofey Mikhailovich SOLOVYEV ,  Semih Esenlik ,  Jianle Chen ,  Anand Meher Kotra ,  Han Gao ,  Biao Wang ,  Roman Igorevich Chernyak ,  Alexander Alexandrovich Karabutov ,  Sergey Yurievich Ikonin

IPC: H04N19/503 ,  H04N19/105 ,  H04N19/13 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: A prediction method for an image block comprising a first prediction sub-block and a second prediction sub-block, the prediction method comprising: parsing a first index from a bitstream, wherein the first index is used to obtain prediction information of the first prediction sub-block; parsing a second index from the bitstream; comparing the first index with the second index; adjusting the second index in the event that the second index is equal to or greater than the first index; and obtaining prediction information of the second prediction sub-block according to the adjusted second index.