公开(公告)号：US12206848B2

公开(公告)日：2025-01-21

申请号：US17401865

申请日：2021-08-13

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：US12200201B2

公开(公告)日：2025-01-14

申请号：US17346005

申请日：2021-06-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/593

Abstract: Devices and methods for Intra prediction are provided. The method includes: parsing a bitstream, wherein the bitstream includes indication information to indicate whether a closest neighboring reference line to the current block is used for an intra prediction; determining an intra prediction mode of the current block is not Planar mode when the closest neighboring reference line to the current block is not used for the intra prediction; and obtaining an index indicating which intra prediction mode in a set of most probable modes is used for the intra prediction mode of the current block when the intra prediction mode of the current block is not Planar mode. The method can improve the efficiency to determine the intra prediction mode of the current block.

公开(公告)号：US12192534B2

公开(公告)日：2025-01-07

申请号：US18476309

申请日：2023-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/14 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/80 ,  H04N19/86

Abstract: An image processing device for use in an image encoder and/or an image decoder, for deblocking a block edge between a first block and a second block of an image encoded with a block code, is provided. The image processing device comprises a filter for filtering the block edge, configured to, for at least some of the pixels to be filtered, within a deblocking range from the block edge, the deblocking range being perpendicular to the block edge, determine a filtered pixel value from an original pixel value of the pixel and at least one further pixel value, determine a clipping value of the pixel, dependent upon a distance of the pixel from the block edge, and clip the filtered pixel value, using the clipping value resulting in a deblocked pixel value.

公开(公告)号：US12177433B2

公开(公告)日：2024-12-24

申请号：US18168188

申请日：2023-02-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

Abstract: The present disclosure relates to methods and devices to be employed for encoding and decoding of image or video signal. They include determination of whether or not the size of a current block is larger than a minimum allowed quadtree leaf node size. If the size of the current block is not larger than the minimum allowed quadtree leaf node size, multi-type tree splitting is applied to the current block. The minimum allowed quadtree leaf node size is not larger than a maximum allowed binary tree root node size or the minimum allowed quadtree leaf node size is not larger than a maximum allowed ternary tree root node size.

公开(公告)号：US12149684B2

公开(公告)日：2024-11-19

申请号：US17856428

申请日：2022-07-01

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/176 ,  H04N19/105 ,  H04N19/11 ,  H04N19/13 ,  H04N19/159 ,  H04N19/167 ,  H04N19/186 ,  H04N19/46 ,  H04N19/593

Abstract: Devices and methods for Intra prediction are provided. The method includes: obtaining a value of an indication information of a current block. When the value of the indication information indicates the intra prediction mode of the current block is not comprised in the set of most probable modes, deriving the intra prediction mode IntraPredModeY of the current block by the following ordered steps: i. IntraPredModeY is set equal to intra_luma_mpm_remainder[xCb][yCb], ii. The value of IntraPredModeY is incremented by one. The method can improve the efficiency to determine the intra prediction mode of the current block.

公开(公告)号：US20240296593A1

公开(公告)日：2024-09-05

申请号：US18661245

申请日：2024-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Alexander Alexandrovich Karabutov ,  Panqi Jia ,  Atanas Boev ,  Han Gao ,  Biao Wang ,  Elena Alexandrovna Alshina ,  Johannes Sauer

IPC: G06T9/00 ,  H04N19/13 ,  H04N19/167 ,  H04N19/186

CPC classification number: G06T9/002 ,  H04N19/13 ,  H04N19/167 ,  H04N19/186

Abstract: A conditional coding of components of an image is described. A method of encoding at least a portion of an image is provided, which comprises encoding a primary component of the image independently from at least one secondary component and encoding the at least one secondary component of the image using information from the primary component. Further, it is provided a method of encoding at least a portion of an image, comprising providing a residual comprising a primary residual component for a primary component of the image and at least one secondary residual component for at least one secondary component of the image that is different from the primary component, encoding the primary residual component independently from the at least one secondary residual component and encoding the at least one secondary residual component using information from the primary residual component.

公开(公告)号：US12058330B2

公开(公告)日：2024-08-06

申请号：US17588854

申请日：2022-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

CPC classification number: H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186

Abstract: A method of coding implemented by a decoding device, comprising obtaining a video bitstream; decoding the video bitstream to obtain an initial intra prediction mode value for chroma component of a current coding block; determining whether a ratio between a width for luma component of the current coding block and a width for chroma component of the current coding block is equal to a threshold or not; obtaining a mapped intra prediction mode value for chroma component of the current coding block according to a predefined mapping relationship and the initial intra prediction mode value, when it's determined that the ratio is equal to the threshold; obtaining a prediction sample value for chroma component of the current coding block according to the mapped intra prediction mode value.

公开(公告)号：US12047570B2

公开(公告)日：2024-07-23

申请号：US17141121

申请日：2021-01-04

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：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：US20240161488A1

公开(公告)日：2024-05-16

申请号：US18479611

申请日：2023-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: G06V10/82 ,  G06V10/77 ,  G06V20/40 ,  H04N19/513 ,  H04N19/91

CPC classification number: G06V10/82 ,  G06V10/7715 ,  G06V20/46 ,  H04N19/521 ,  H04N19/91

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, two kinds of data are combined during the processing including processing by the neural network. The two kinds of data are obtained from different stages of processing by the network. Some of the advantages may include greater scalability and a more flexible design of the neural network architecture which may further lead to better encoding/decoding performance.