公开(公告)号：US20160316211A1

公开(公告)日：2016-10-27

申请号：US15199157

申请日：2016-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maxim Borisovitch Sychev ,  Jin Song ,  Victor Alexeevich Stepin

IPC: H04N19/174 ,  H04N19/172 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50

CPC classification number: H04N19/174 ,  H04N19/172 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/65

Abstract: A decoding method which includes determining a first to-be-decoded information group in a to-be-decoded bitstream, where the first to-be-decoded information group includes data information, attribute information, and location information of the first to-be-decoded information group, determining a reference information group set in a case in which the attribute information represents that the first to-be-decoded information group is a redundant information group, and discarding the first to-be-decoded information group when location information of at least one reference information group in the reference information group set is same as the location information of the first to-be-decoded information group, or parsing the data information when location information of all reference information groups in the reference information group set is different from the location information of the first to-be-decoded information group.

Abstract translation: 一种解码方法，包括确定要解码的比特流中的第一待解码信息组，其中第一待解码信息组包括数据信息，属性信息和第一被解码信息组的位置信息 - 确定在属性信息表示第一待解码信息组是冗余信息组的情况下设置的参考信息组，以及在位置信息时丢弃第一待解码信息组 参考信息组集合中的至少一个参考信息组与第一待解码信息组的位置信息相同，或者当参考信息组集合中的所有参考信息组的位置信息为 不同于第一待解码信息组的位置信息。

公开(公告)号：US20250008120A1

公开(公告)日：2025-01-02

申请号：US18756438

申请日：2024-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yei-Kui Wang ,  FNU Hendry ,  Maxim Borisovitch Sychev

IPC: H04N19/174 ,  H04N19/119 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/44 ,  H04N19/66 ,  H04N19/70

Abstract: A video coding mechanism is disclosed. The mechanism includes partitioning a picture into a plurality of first level tiles. A subset of the first level tiles is partitioned into a plurality of second level tiles. The first level tiles and the second level tiles are encoded into a bitstream. A split indication is encoded into the bitstream. The split indication indicates that at least one of the first level tiles is split into the second level tiles. The bitstream is stored for communication toward a decoder.

公开(公告)号：US12069250B2

公开(公告)日：2024-08-20

申请号：US17472262

申请日：2021-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maxim Borisovitch Sychev ,  Ye-Kui Wang ,  Fnu Hendry

IPC: H04N19/11 ,  H04N19/172 ,  H04N19/44

CPC classification number: H04N19/11 ,  H04N19/172 ,  H04N19/44

Abstract: A method of video encoding a sequence of pictures, the method being implemented in an encoding device and comprising: obtaining an intra prediction picture comprising at least two sub-units; obtaining a first encoded other picture, wherein the intra prediction picture and the first encoded other picture have the same Picture Order Count, POC, value; obtaining encoded other pictures different from the intra prediction picture and the first encoded other picture; and distributing the at least two sub-units of the intra prediction picture over one or more sub-units of the encoded other pictures and/or over one or more sub-units of the first encoded other picture.

公开(公告)号：US12058347B2

公开(公告)日：2024-08-06

申请号：US18178196

申请日：2023-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  FNU Hendry ,  Maxim Borisovitch Sychev

IPC: H04N19/174 ,  H04N19/119 ,  H04N19/172 ,  H04N19/30 ,  H04N19/44 ,  H04N19/66 ,  H04N19/70 ,  H04N19/176

CPC classification number: H04N19/174 ,  H04N19/119 ,  H04N19/172 ,  H04N19/30 ,  H04N19/44 ,  H04N19/66 ,  H04N19/70 ,  H04N19/176

Abstract: A video coding mechanism is disclosed. The mechanism includes partitioning a picture into a plurality of first level tiles. A subset of the first level tiles is partitioned into a plurality of second level tiles. The first level tiles and the second level tiles are encoded into a bitstream. A split indication is encoded into the bitstream. The split indication indicates that at least one of the first level tiles is split into the second level tiles. The bitstream is stored for communication toward a decoder.

公开(公告)号：US12058337B2

公开(公告)日：2024-08-06

申请号：US17708866

申请日：2022-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Timofey Mikhailovich Solovyev ,  Maxim Borisovitch Sychev ,  Huanbang Chen ,  Alexander Alexandrovich Karabutov ,  Roman Igorevich Chernyak ,  Sergey Yurievich Ikonin ,  Haitao Yang ,  Elena Alexandrovna Alshina

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46

Abstract: A method of coding implemented by a decoding/encoding device for coding video data includes for a block coded in affine mode, determining control point motion vectors (CPMVs); determining a reference area in a reference picture corresponding to a sub-block of the affine coded block based on the CPMVs; setting a variable clipMVX equal to TRUE if a size of the reference area is greater than a predefined threshold, otherwise setting a variable clipMVX equal to FALSE; deriving a pixel-based motion vector field for the affine coded block; wherein, if the variable clipMVX is equal to TRUE, the deriving the pixel-based motion vector field further comprises motion vector clipping based on a first clipping range, wherein the first clipping range is determined based on the determined CPMVs and a size of the affine coded block.

公开(公告)号：US11985354B2

公开(公告)日：2024-05-14

申请号：US17676966

申请日：2022-02-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Timofey Mikhailovich Solovyev ,  Maxim Borisovitch Sychev ,  Huanbang Chen ,  Alexander Alexandrovich Karabutov ,  Roman Igorevich Chernyak ,  Sergey Yurievich Ikonin ,  Haitao Yang ,  Elena Alexandrovna Alshina

IPC: H04N19/82 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/615 ,  H04N19/80

CPC classification number: H04N19/615 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/80

Abstract: A method for coding a video implemented in an encoder or a decoder, comprising: determining control point motion vectors, CPMVs, for a block according to affine inter-prediction, according to a preselected affine motion model, the block being an affine block; performing motion compensation for the block using a pixel-based motion vector field according to values of the CPMVs, upon fulfilling at least one of the following conditions: A) for a predefined size of a sub-block of M×M, during processing of one line, respectively, of the sub-block the number of lines of the reference picture is less than N, where N is an integer and N is larger than 2.

公开(公告)号：US20240056577A1

公开(公告)日：2024-02-15

申请号：US18495514

申请日：2023-10-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Maxim Borisovitch Sychev ,  Andrey Soroka ,  Elena Alexandrovna Alshina ,  Sergey Yurievich Ikonin

IPC: H04N19/13 ,  H04N19/184 ,  H04N19/46 ,  H04N19/436

CPC classification number: H04N19/13 ,  H04N19/184 ,  H04N19/46 ,  H04N19/436

Abstract: Methods and apparatuses are described to encode data into a bitstream and to decode data from a bitstream. The method is able to reduce the length of the bitstream by including only the relevant significant bits within the trailing bits of the encoding process. The amount of these leading trailing bits is determined and the trailing bits, which have the least amount, can be constructed. Indications of the amount of leading trailing bits are included into the bitstream. Therefore, padding is not required, resulting in less bits, which need to be signaled.

公开(公告)号：US20230128496A1

公开(公告)日：2023-04-27

申请号：US18145569

申请日：2022-12-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Maxim Borisovitch Sychev ,  Elena Alexandrovna Alshina ,  Mikhail Vyacheslavovich Sosulnikov ,  Alexander Alexandrovich Karabutov

IPC: H04N19/137 ,  H04N19/132 ,  H04N19/105 ,  H04N19/172

Abstract: Methods and apparatuses are provided for estimating motion vectors of a dense motion field based on subsampled sparse motion field. The sparse motion field includes two or more motion vectors with their respective start positions. For each of the motion vectors, a transformation is derived which transforms the motion vector from its start point into a target point. The transformed motion vectors then contribute to the estimated motion vector on the target position. The contribution of each motion vector is weighted. Such motion estimation may be readily used for video encoding and decoding.

公开(公告)号：US11601680B2

公开(公告)日：2023-03-07

申请号：US17362723

申请日：2021-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maxim Borisovitch Sychev ,  FNU Hendry ,  Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/136 ,  H04N19/174 ,  H04N19/184

Abstract: The present disclosure provides an encoding and decoding device, as well as an encoding and decoding method. In particular, the present disclosure relates to method for decoding of a video bitstream implemented by a decoding device, wherein the video bitstream includes data representing a coded picture comprising tile columns, the decoding method comprising: obtaining a syntax element by parsing the video bitstream, wherein the syntax element is used to derive the width of the tile columns, wherein the width of the tile columns is uniform; predicting the picture according the width of the tile columns.

公开(公告)号：US20220264094A1

公开(公告)日：2022-08-18

申请号：US17708861

申请日：2022-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Timofey Mikhailovich Solovyev ,  Maxim Borisovitch Sychev ,  Huanbang Chen ,  Alexander Alexandrovich Karabutov ,  Roman Igorevich Chernyak ,  Sergey Yurievich Ikonin ,  Haitao Yang ,  Elena Alexandrovna Alshina

IPC: H04N19/122 ,  H04N19/176 ,  H04N19/547 ,  H04N19/523

Abstract: A method related to adaptive usage of pixel-based and block-based affine motion compensation and includes performing sub-block-based affine transform prediction on an affine block with a first sub-block size if the first sub-block size is greater than or equal to a first sub-block size threshold. If the first sub-block size is less than the first sub-block size threshold, it is determined whether a pixel-based motion vector field is not applied for performing motion compensation for the affine block. If the motion vector field is not applied, a sub-block-based affine motion prediction is performed with a second sub-block size that is based on the first sub-block size. If the pixel-based motion vector field is applied, motion compensation is performed for a sub-block of the affine block using the pixel-based motion vector field.