公开(公告)号：US20250106396A1

公开(公告)日：2025-03-27

申请号：US18972057

申请日：2024-12-06

Applicant: Huawei Technologies Co., Ltd.

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

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

Abstract: A method of video coding implemented by a coding device includes obtaining block size information of a current block to be coded in an intra sub-partition (ISP) coding mode, determining a partitioning direction based on the block size information, determining, based on the block size information, a number of sub-partitions to which the current block is to be partitioned in the partitioning direction, wherein the sub-partitions are for intra prediction separately with a width of each of the sub-partitions bigger than or equal to 4 or collaboratively by combining at least two of the sub-partitions with a combined width of the at least two sub-partitions bigger than or equal to 4, and coding the sub-partitions.

公开(公告)号：US12238338B2

公开(公告)日：2025-02-25

申请号：US17698824

申请日：2022-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/82

Abstract: A method of coding implemented by a decoding device, a decoder, an encoder are disclosed, the method comprising: obtaining a bitstream; obtaining a value of a syntax element sps_num_subpics_minus1 according to parse the bitstream; when the value of the syntax element sps_num_subpics_minus1 is greater than a preset value, obtaining a value of a syntax element sps_independent_subpics_flag from the bitstream.

公开(公告)号：US12184842B2

公开(公告)日：2024-12-31

申请号：US18322404

申请日：2023-05-23

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: A coding apparatus configured to select an intra prediction mode for a current block, encode the selected intra prediction mode using truncated binary coding every time the selected intra prediction mode is a remaining mode, and encode the selected intra prediction mode using N bits when the selected intra prediction mode is included in a first portion from remaining modes and using N+1 bits when the selected intra prediction mode is included in a second portion of the remaining modes.

公开(公告)号：US12177469B2

公开(公告)日：2024-12-24

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.

公开(公告)号：US20240422311A1

公开(公告)日：2024-12-19

申请号：US18747180

申请日：2024-06-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/184 ,  H04N19/30 ,  H04N19/80

Abstract: A method for operating a two-dimensional (2D) separable interpolation filter for coding a video, wherein the two-dimensional separable interpolation filter comprises a first and a second one-dimensional (1D) interpolation filter and a temporal buffer of a predetermined buffer size, wherein the method comprises: obtaining filter coefficients for the first one-dimensional interpolation filter of the two-dimensional interpolation filter; comparing a sum of positive filter coefficients of the obtained filter coefficients with a threshold; and upon determining that the sum of positive filter coefficients is larger than the threshold, amending one or more of the filter coefficients to obtain amended filter coefficients, wherein the one or more filter coefficients are amended such that a sum of positive filter coefficients of the amended filter coefficients is not larger than the threshold; applying the amended filter coefficients to samples of the video to obtain a value of a fractional sample position of the video; re-scaling the value of the fractional sample position and storing the re-scaled value of the fractional sample position in the temporal buffer.

公开(公告)号：US20240357094A1

公开(公告)日：2024-10-24

申请号：US18406193

申请日：2024-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/96

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/96

Abstract: A method of filtering a sample value of a picture includes, when an integer t is less than k and an integer j is in the range of 1 to m, generating, with an integer i in the range of 1 to k−t−1, a first filtered sample value by applying a first filter to the value of the sample p(i,j), where the first filter is supported by a first set of filter support samples, which does not comprise any samples p(i′,j′) with row index i′ greater than k−t−1, and generating, with i in the range of k−t to k, a second filtered sample value by applying a second filter to the value of the sample p(i,j), the second filter is supported by a second set of filter support samples, which does not comprise any samples p(i′,j′) with row index i′ less than k−t.

公开(公告)号：US12088799B2

公开(公告)日：2024-09-10

申请号：US17369024

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H01L29/94 ,  H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196

CPC classification number: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196

Abstract: A method of coding implemented by a decoding device, comprising: setting a value of candidate intra prediction mode of a current block to be a default value, wherein the current block is predicted using an intra prediction mode but not a Matrix-based Intra Prediction (MIP) mode and a neighboring block adjacent to the current block is used to derive the value of candidate intra prediction mode of the current block and is predicted using MIP mode; obtaining a value of the intra prediction mode of the current block according to the default value.

公开(公告)号：US12081765B2

公开(公告)日：2024-09-03

申请号：US17681066

申请日：2022-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

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

Abstract: A motion information storing method comprises: determining a distance between a sample set in the current block and the common boundary; and comparing the distance with a threshold to determine whether third motion information is stored for the sample set, wherein the third motion information is derived by the first motion information and the second motion information.

公开(公告)号：US20240244275A1

公开(公告)日：2024-07-18

申请号：US18402444

申请日：2024-01-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/96 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/96 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

Abstract: The present disclosure relates generally to video coding and picture partitioning methods. In particular, the disclosure is concerned with relations between partition constraint elements, by setting partitioning rules for different picture partitioning methods. The disclosure provides devices and corresponding methods for generating or processing a bitstream including encoded pictures, particularly for setting and including partition constraint element into the bitstream. One of the devices is configured to determine a minimum luma size of a leaf block resulting from quadtree splitting (MinQtSizeY), determine a maximum luma size of a coding block where partitioning using a binary tree splitting is allowed (MaxBtSizeY) based on the MinQtSizeY, and include information for the determined MinQtSizeY into the bitstream.

公开(公告)号：US20240214562A1

公开(公告)日：2024-06-27

申请号：US18412589

申请日：2024-01-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sergey Yurievich Ikonin ,  Nicola GIULIANI ,  Biao Wang ,  Elena Alexandrovna Alshina ,  Han Gao

IPC: H04N19/114 ,  H04N19/136 ,  H04N19/177 ,  H04N19/184 ,  H04N19/42 ,  H04N19/587

CPC classification number: H04N19/114 ,  H04N19/136 ,  H04N19/177 ,  H04N19/184 ,  H04N19/42 ,  H04N19/587

Abstract: An apparatus for generating a bitstream representing input frames of a video sequence, is provided. The apparatus includes a processing circuitry configured to generate the bitstream including a synthesized frame at a first position of a first input frame based on two or more input frames. A quality measure for the synthesized frame is determined. Based on determining that the quality measure fulfills a predetermined condition, an indication of the first position is included into a bitstream portion, and based on determining that the quality measure does not fulfill the predetermined condition, content of the first input frame is encoded into the bitstream portion.