公开(公告)号：US20240037802A1

公开(公告)日：2024-02-01

申请号：US18479507

申请日：2023-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Timofey Mikhailovich Solovyev ,  Biao Wang ,  Elena Alexandrovna Alshina ,  Han Gao ,  Panqi Jia ,  Esin Koyuncu ,  Alexander Alexandrovich Karabutov ,  Mikhail Vyacheslavovich Sosulnikov ,  Semih Esenlik ,  Sergey Yurievich Ikonin

IPC: G06T9/00 ,  G06T3/40

CPC classification number: G06T9/002 ,  G06T3/4046

Abstract: This application provides methods and apparatuses for processing of picture data or picture feature data using a neural network with two or more layers. The present disclosure may be applied in the field of artificial intelligence (AI)-based video or picture compression technologies, and in particular, to the field of neural network-based video compression technologies. According to some embodiments, position within the neural network, at which auxiliary information may be entered for processing is selectable based on a gathering condition. The gathering condition may assess whether some prerequisite is fulfilled. Some of the advantages may include better performance in terms of rate and/or disclosure due to the effect of increased flexibility in neural network configurability.

公开(公告)号：US11856228B2

公开(公告)日：2023-12-26

申请号：US17399203

申请日：2021-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/66 ,  H04N19/80 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N19/66 ,  H04N19/176 ,  H04N19/593 ,  H04N19/80

Abstract: A deblocking method is provided for deblocking a sub-partition boundary within a coding block during image encoding and/or image decoding process. The coding block is coded in an intra prediction mode and the coding block is partitioned into sub-partitions comprising a first sub-partition and a second sub-partition that is adjacent to the first sub-partition. The method comprises: determining a maximum filter length to be 1 for a first/second sub-partition when a width of the first or second sub-partition is 4 samples, or when a height of the first or second sub-partition is 4 samples; modifying a value of up to one sample of the first or second sub-partition, wherein the value of the up to one sample is obtained from a row or a column of the first or second sub-partition that is perpendicular to and adjacent to the sub-partitions boundary between the first sub-partition and the second sub-partition.

公开(公告)号：US11758137B2

公开(公告)日：2023-09-12

申请号：US17370805

申请日：2021-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/122 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61 ,  H04N19/625 ,  G06T9/00 ,  G06T9/40

CPC classification number: H04N19/122 ,  G06T9/007 ,  G06T9/40 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61 ,  H04N19/625

Abstract: A method of video coding a block of a picture includes: obtaining a residual signal resulting from inter- or intra-picture prediction; inferring use of a DCT2 transform core for a sequence of the residual signal; processing the transformation of the block using the inferred transform core.

公开(公告)号：US20230209043A1

公开(公告)日：2023-06-29

申请号：US18068235

申请日：2022-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Anand Meher KOTRA ,  Jianle Chen ,  Semih Esenlik ,  Biao Wang ,  Han Gao ,  Zhijie Zhao

IPC: H04N19/105 ,  H04N19/129 ,  H04N19/176 ,  H04N19/169

CPC classification number: H04N19/105 ,  H04N19/129 ,  H04N19/176 ,  H04N19/1883

Abstract: Embodiments provide methods and devices (encoder and/or decoder) of coding a picture. A History Based Motion Vector Prediction (HMVP) list for a current Coding Tree Unit (CTU) row within a tile of a picture is initialized and a CTU of the current CTU row is processed based on the initialized HMVP list.

公开(公告)号：US11659175B2

公开(公告)日：2023-05-23

申请号：US17245037

申请日：2021-04-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

CPC classification number: H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

Abstract: Methods, systems, and computer programs encoded on a computer storage medium for marking the availability of a potential candidate coding block for intra prediction mode estimation of a current coding block are provided. One example method includes obtaining a parent block of a current coding block (parentCurr), and a parent block of a candidate coding block (parentCand). The current coding block and the candidate coding block are each obtained by splitting of the parentCurr and the parentCand, respectively. In one aspect, the current coding block cannot use an intra prediction mode of a potential candidate coding block when parentCand and parentCurr are the same block, a function of a number of quadtree, ternary tree, and binary tree splitting operations is greater than a threshold minus 1, and a split mode of the parent block of the current coding block parentCurr is a ternary tree split.

公开(公告)号：US11558632B2

公开(公告)日：2023-01-17

申请号：US17325661

申请日：2021-05-20

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.

公开(公告)号：US11558607B2

公开(公告)日：2023-01-17

申请号：US17351783

申请日：2021-06-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/105 ,  H04N19/129 ,  H04N19/176 ,  H04N19/169

Abstract: Embodiments provide methods and devices (encoder and/or decoder) of coding a picture. A History Based Motion Vector Prediction (HMVP) list for a current Coding Tree Unit (CTU) row within a tile of a picture is initialized and a CTU of the current CTU row is processed based on the initialized HMVP list.

公开(公告)号：US11539948B2

公开(公告)日：2022-12-27

申请号：US17154788

申请日：2021-01-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih Esenlik ,  Max Blaeser ,  Zhijie Zhao ,  Han Gao ,  Anand Meher Kotra ,  Biao Wang ,  Elena Alexandrovna Alshina

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/184 ,  H04N19/159

Abstract: A method of coding implemented by a decoding device, comprising obtaining a bitstream; obtaining a value of an indicator for a current block according to the bitstream; obtaining a value of a first parameter for the current block and a value of a second parameter for the current block, according to the value of the indicator and a predefined lookup table; obtaining a value of a sample distance for a sample which is located in the current block, according to the value of the first parameter and the value of the second parameter; obtaining a prediction value for the sample, according to the value of the sample distance for the sample.

公开(公告)号：US11533497B2

公开(公告)日：2022-12-20

申请号：US17681003

申请日：2022-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Biao Wang ,  Semih Esenlik ,  Anand Meher Kotra ,  Elena Alexandrovna Alshina ,  Han Gao

IPC: H04N19/31 ,  H04N19/136 ,  H04N19/187 ,  H04N19/70 ,  H04N19/119 ,  H04N19/176

Abstract: Signalling of syntax elements in a sequence parameter set of a video bitstream is addressed. Particularly, it is provided a method of decoding a video bitstream wherein a sequence parameter set, SPS, is coded that contains syntax elements that apply to a video sequence, the method comprising obtaining a value of a first syntax element from the SPS used to specify whether a decoded picture buffer, DPB, parameters syntax structure is present in the SPS and obtaining a value of a second syntax element from the SPS, at least when determining that the value of the first syntax element specifies that the DPB parameters syntax structure is present in the SPS, used to specify the presence of a DPB syntax element in the DPB parameters syntax structure, wherein the DPB syntax element is applied to a temporal sublayer except for the highest temporal sublayer in the video sequence.

公开(公告)号：US11516505B2

公开(公告)日：2022-11-29

申请号：US17170065

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: The disclosure relates to a method of decoding implemented by a decoding device, comprising: obtaining a value of a reference line index for a current block; constructing a most probable mode, MPM, list for the current block; obtaining a value of intra-prediction mode index for the current block; when the value of the reference line index is not equal to 0, obtaining an intra prediction mode of the current block according to the MPM list for the current block and the value of the intra-prediction mode index for the current block, wherein the value of the intra-prediction mode index indicates a position that corresponds to the intra prediction mode of the current block among angular intra-prediction modes in the MPM list. The disclosure also relates to a coding apparatus and a non-transitory machine-readable medium.