公开(公告)号：US12047555B2

公开(公告)日：2024-07-23

申请号：US17557930

申请日：2021-12-21

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: A method for coding implemented by a decoding device or an encoding device includes: obtaining a first prediction mode for a first sub-block, obtaining a second prediction mode for a second sub-block; obtaining a first prediction value for a sample in the current block according to the first prediction mode, obtaining a second prediction value for the sample in the current block according to the second prediction mode; obtaining a value of an indicator, the value of the indicator indicating a blending operation which is performed for the sample in the current block; and obtaining a combined prediction value for the sample in the current block, according to the value of the indictor, the first prediction value, and the second prediction value. The blending operation adaptively performs around a separation line dividing the current block into at least the first sub-block and the second sub-block.

公开(公告)号：US11962773B2

公开(公告)日：2024-04-16

申请号：US18076200

申请日：2022-12-06

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

CPC classification number: 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：US20230129504A1

公开(公告)日：2023-04-27

申请号：US18076200

申请日：2022-12-06

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 ,  H04N19/184 ,  H04N19/176

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：US11570437B2

公开(公告)日：2023-01-31

申请号：US17318849

申请日：2021-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Max Blaeser ,  Mathias Wien

IPC: H04N19/119 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/91

Abstract: An encoder is provided that comprises a partitioner and an entropy coder. The partitioner is configured to receive a current block of the frame and obtain a list of candidate geometric partitioning (GP) lines. Each of the candidate GP lines is generated based on information of one or more candidate neighbor blocks of the current block. The partitioner is further configured to determine a final GP line that partitions the current block into two segments, select a GP line from the list of GP lines to obtain a selected GP line, and generate a GP parameter for the current block. The GP parameter includes an offset information indicating an offset between the final GP line and the selected GP line. The entropy coder is configured to encode the GP parameter.

公开(公告)号：US20220021883A1

公开(公告)日：2022-01-20

申请号：US17489793

申请日：2021-09-30

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

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

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/186 ,  H04N19/176

Abstract: A method of coding implemented by a decoding device, comprising obtaining a value of a parameter for a current block, the value of the parameter indicating a partition mode for the current block; obtaining a first prediction mode for the current block; obtaining a second prediction mode for the current block; generate a first prediction value for a chroma sample in the current block according to the first prediction mode; generate a second prediction value for a chroma sample in the current block according to the second prediction mode; obtaining a combined prediction value by combining the first prediction value and the second prediction value.

公开(公告)号：US20190364296A1

公开(公告)日：2019-11-28

申请号：US16533412

申请日：2019-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Max Blaeser ,  Mathias Wien

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/567

Abstract: The present disclosure provides a video encoder and a video decoder, which may both be used for partitioning a block in a current picture based on at least one partitioning predictor. The encoder and decoder are configured to select at least one reference picture and a plurality of blocks in the at least one reference picture. Further, to calculate, for each selected block, a projected location in the current picture based on a motion vector associated to the selected block in the reference picture. Then, they are configured to determine each selected block.of which the projected location spatially overlaps with the block in the current picture, to be a reference block, and generate for at least one reference block a partitioning predictor based on partitioning information associated to, for example stored in, the at least one reference picture.

公开(公告)号：US20190273920A1

公开(公告)日：2019-09-05

申请号：US16388224

申请日：2019-04-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Max Blaeser ,  Mathias Wien

IPC: H04N19/117 ,  H04N19/139 ,  H04N19/119 ,  H04N19/176

Abstract: A decoding apparatus partitions a video coding block based on coding information into two or more segments including a first segment and a second segment. The coding information comprises a first segment motion vector associated with the first segment and a second segment motion vector associated with the second segment. A co-located first segment in a first reference frame is determined based on the first segment motion vector and a co-located second segment in a second reference frame is determined based on the second segment motion vector. A predicted video coding block is generated based on the co-located first segment and the co-located second segment. A divergence measure is determined based on the first segment motion vector and the second segment motion vector and a first or second filter is applied depending on the divergence measure to the predicted video coding block.