公开(公告)号：US12063388B2

公开(公告)日：2024-08-13

申请号：US17850123

申请日：2022-06-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176

Abstract: A method of coding implemented is provided. The method includes the following operations: obtained the height and width of a prediction block without applying clipping operation; calculating a value of a vertical component of an intra prediction sample based on the height and width of the prediction block; calculating a value of a horizontal component of the intra prediction sample based on the height and width of the prediction block; and generating the intra prediction sample based on the value of the vertical component and the value of the horizon component.

公开(公告)号：US12047609B2

公开(公告)日：2024-07-23

申请号：US17707202

申请日：2022-03-29

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 ,  H04N19/109 ,  H04N19/117 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/52 ,  H04N19/80

CPC classification number: H04N19/80 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/182 ,  H04N19/197 ,  H04N19/52

Abstract: An apparatus for inter prediction of a sample value of a current full-integer pixel of a plurality of pixels associated with a current block of a current frame of a video signal is disclosed. The apparatus is configured to: determine a motion vector of the current full-integer pixel based on a motion compensation model; determine for the current full-integer pixel a corresponding sub-integer pixel in a reference frame; determine positions of a set of corresponding filter support pixels in the reference frame; obtain a respective sample value of the corresponding sub-integer pixel of the current full-integer pixel and the corresponding filter support pixels in the reference frame by applying a bilinear interpolation; and determine the inter predicted sample value of the current full-integer pixel.

公开(公告)号：US12041230B2

公开(公告)日：2024-07-16

申请号：US17712980

申请日：2022-04-04

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

CPC classification number: H04N19/117 ,  H04N19/132 ,  H04N19/184 ,  H04N19/30 ,  H04N19/80

Abstract: A method operates a two-dimensional (2D) separable interpolation filter for coding a video. The 2D separable interpolation filter includes a first second one-dimensional (1D) interpolation filter and a temporal buffer. The method includes: obtaining filter coefficients for the first 1D 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, the filter coefficients being amended such that a sum of positive 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：US12010291B2

公开(公告)日：2024-06-11

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：US20240078414A1

公开(公告)日：2024-03-07

申请号：US18507949

申请日：2023-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ahmet Burakhan Koyuncu ,  Atanas Boev ,  Elena Alexandrovna Alshina

IPC: G06N3/0464 ,  G06N7/01

CPC classification number: G06N3/0464 ,  G06N7/01

Abstract: Methods and apparatuses are provided for entropy encoding and decoding of a latent tensor, which includes separating the latent tensor into patches and obtaining a probability model for the entropy encoding of a current element of the latent tensor by processing a set of elements from different patches by one or more layers of a neural network. The processing of the set of elements by applying a convolution kernel enables sharing of information between the separated patches.

公开(公告)号：US20240048756A1

公开(公告)日：2024-02-08

申请号：US18446265

申请日：2023-08-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

Inventor： Timofey Mikhailovich Solovyev ,  Fabian Brand ,  Jürgen Seiler ,  Andre Kaup ,  Elena Alexandrovna Alshina

IPC: H04N19/513 ,  H04N19/543

CPC classification number: H04N19/521 ,  H04N19/543

Abstract: A sparse motion field exchanges motion information between encoder and decoder. Side information indicates a suitable interpolation approach for interpolating the motion vectors of the dense motion field different from the signaled sparse motion field motion vectors. The side information is provided on a segment basis. The segments are derived at the encoder side and the decoder side similarly, based on the reference images and the sparse motion field.

公开(公告)号：US11863748B2

公开(公告)日：2024-01-02

申请号：US17547169

申请日：2021-12-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sergey Yurievich Ikonin ,  Roman Igorevich Chernyak ,  Timofey Mikhailovich Solovyev ,  Alexander Alexandrovich Karabutov ,  Elena Alexandrovna Alshina

IPC: H04N19/124 ,  H04N19/186 ,  H04N19/196

CPC classification number: H04N19/124 ,  H04N19/186 ,  H04N19/196

Abstract: A method of obtaining quantization parameter (QP) for chrominance components based on QP for luminance component, wherein the method is performed by a decoder or encoder, and wherein the method comprises obtaining a luminance QP for a luma component of a coding unit; obtaining a QP index (QPi) based at least in a part on the luminance QP; and obtaining a chrominance QP (QPc) for a chroma component of the coding unit based on the QP index by using a preset lookup table, wherein the maximum difference between the QP index and the chrominance QP is equal to 3.

公开(公告)号：US11849107B2

公开(公告)日：2023-12-19

申请号：US17478243

申请日：2021-09-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy ,  Jianle Chen ,  Semih Esenlik ,  Biao Wang ,  Elena Alexandrovna Alshina

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  G06F5/01 ,  G06F17/16

CPC classification number: H04N19/105 ,  G06F5/01 ,  G06F17/16 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: A method of intra prediction of a block, comprising obtaining two lines of reconstructed neighboring samples; deriving a set of reference samples based on the two lines of reconstructed neighboring samples; obtaining a set of MIP coefficients based on a intra prediction mode obtained from a bitstream, wherein a MIP coefficient CMIP of the set of MIP coefficients is obtained based on CMIP=vsgn·(q

公开(公告)号：US20230353766A1

公开(公告)日：2023-11-02

申请号：US18338143

申请日：2023-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Elena Alexandrovna Alshina ,  Han Gao ,  Semih Esenlik

IPC: H04N19/42 ,  H04N19/132 ,  H04N19/463 ,  H04N19/80 ,  H04N19/187 ,  H04N19/172 ,  H04N19/85

CPC classification number: H04N19/42 ,  H04N19/132 ,  H04N19/463 ,  H04N19/80 ,  H04N19/187 ,  H04N19/172 ,  H04N19/85

Abstract: A method and an apparatus for encoding a picture and decoding a bitstream representing a matrix using a neural network is provided. The method includes obtaining a resizing method out of a plurality of resizing methods. The resizing method is applied to resize an input of size S to a size S. The resized input is processed by the neural network, wherein the neural network comprises one or more downsampling layers. Subsequently, the method provides an output of the neural network, the output having a size P that is smaller than S in the at least one dimension

公开(公告)号：US20230353764A1

公开(公告)日：2023-11-02

申请号：US18340704

申请日：2023-06-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sergey Yurievich Ikonin ,  Mikhail Vyacheslavovich Sosulnikov ,  Alexander Alexandrovich Karabutov ,  Timofey Mikhailovich Solovyev ,  Biao Wang ,  Elena Alexandrovna Alshina

IPC: H04N19/139 ,  H04N19/59 ,  H04N19/70 ,  H04N19/33

CPC classification number: H04N19/33 ,  H04N19/139 ,  H04N19/59 ,  H04N19/70

Abstract: A method and apparatus for decoding data for still or video processing into a bitstream are provided. In particular, two or more sets of feature map elements are obtained from the bitstream. Each set of feature map elements relates to a feature map. Each of the two or more sets of feature map elements is then respectively inputted into two or more feature map processing layers out of a plurality of cascaded layers. The decoded data for picture or video processing is then obtained as a result of the processing by the plurality of cascaded layers. According to the present disclosure, the data may be decoded from the bitstream in an efficient manner in the layered structure.