公开(公告)号：US11483554B2

公开(公告)日：2022-10-25

申请号：US17135076

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/11 ,  H04N19/146 ,  H04N19/159 ,  H04N19/176 ,  G06F1/03

Abstract: A device and method for intra-predicting a rectangular and non-square video coding block, the device including an intra-prediction apparatus configured for intra-predicting a rectangular and non-square video coding block according to a set of directional intra-prediction modes distributed over a set of directional ranges, where the intra-prediction apparatus being configured for configured for intra-predicting the rectangular and non-square video coding block includes the intra-prediction apparatus being configured to select a directional range from the set of directional ranges, and determine a number of directional intra-prediction modes of the selected directional range according to a size of a block.

公开(公告)号：US11438618B2

公开(公告)日：2022-09-06

申请号：US17013272

申请日：2020-09-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Alexander Alexandrovich Karabutov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/48 ,  H04N19/13 ,  H04N19/14 ,  H04N19/159 ,  H04N19/18 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91 ,  H04N19/174 ,  H04N19/176 ,  H04N19/61 ,  H04N19/645

Abstract: The present disclosure provides embodiments for coding and decoding signs of transformation coefficients which is applicable, for instance, in image and/or video coding and decoding. In particular, a plurality of the signs are predicted and only a prediction error signal is embedded in the bitstream. The prediction error signal may have a distribution which can be efficiently coded with CABAC or another variable length (entropy) coding. In order to perform the prediction of the signs efficiently, the signs of a plurality of coefficients of a transformed image block are predicted based on a cost function including transformed difference between adjacent pixels neighboring the transformed image block and prediction of the adjacent pixels calculated based on a prediction signal of the image block.

公开(公告)号：US11265535B2

公开(公告)日：2022-03-01

申请号：US17013094

申请日：2020-09-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Alexander Alexandrovich Karabutov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/105 ,  H04N19/129 ,  H04N19/176 ,  H04N19/18 ,  H04N19/64 ,  H04N19/91

Abstract: The present invention relates to an improved apparatus and method for harmonizing both Sign Bit Hiding (SBH) and Residual Sign Prediction (RSP) techniques in video coding. In order to improve coding efficiency, a list of transform coefficients, to which RSP is to be applied is prepared in advance of selecting a coefficient to which SBH is applied. Thereby, the RSP list can be populated in such a manner that the highest coding efficiency may be expected. Subsequently, one or more coefficients for applying SBH are selected so as not to be included in the list.

公开(公告)号：US11233991B2

公开(公告)日：2022-01-25

申请号：US16735336

申请日：2020-01-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/11 ,  H04N19/159 ,  G06F17/18 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46

Abstract: A method of decoding encoded video data for providing a residual video coding block is provided. An intra-prediction mode identifier is extracted from the encoded video data. The method includes: generating a predicted video coding block based on a selected intra-prediction mode; pre-selecting a plane-based intra-prediction mode and a further intra-prediction mode, when the extracted intra-prediction mode identifier is equal to a first predefined intra-prediction mode identifier; selecting the plane-based intra-prediction mode or the further intra-prediction mode, based on (a) an additional flag extracted from the encoded video data or (b) a deviation measure; restoring a video coding block based on the residual video coding block and the predicted video coding block. The deviation measure quantifies deviations of a plurality of reference samples from neighboring video coding blocks from a plurality of fitting samples defined by a fitting plane based on the plurality of reference samples.

公开(公告)号：US20220014732A1

公开(公告)日：2022-01-13

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 ,  G06F17/16 ,  G06F5/01

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：US11102474B2

公开(公告)日：2021-08-24

申请号：US16383338

申请日：2019-04-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/11 ,  H04N19/593 ,  H04N19/136 ,  H04N19/189

Abstract: Pixel values of a current video coding block are intra predicted on the basis of a plurality of reference pixel values. A pixel value of a current pixel is intra predicted on the basis of: a first reference pixel value, wherein the first reference pixel is located in a first neighboring video coding block, a second reference pixel value, wherein the second reference pixel is located in a second neighboring video coding block, a distance between the current pixel and the first reference pixel, and a distance between the current pixel and the second reference pixel.

公开(公告)号：US10887598B2

公开(公告)日：2021-01-05

申请号：US16262726

申请日：2019-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/139 ,  H04N19/463 ,  H04N19/467 ,  H04N19/107 ,  H04N19/159 ,  H04N19/196 ,  H04N19/513 ,  H04N19/593

Abstract: A decoding device and a decoding method for decoding a target information from a bitstream of video data are provided, wherein the bitstream comprises a prediction parameter encoded in the bitstream. The decoding device is configured to calculate a randomized host signal based on the prediction parameter and a pseudo-random signal, and to apply a check function to the randomized host signal and thereby obtain the target information. An encoding device and an encoding method, and computer-readable storage media for encoding and for decoding are also disclosed.

公开(公告)号：US10827180B2

公开(公告)日：2020-11-03

申请号：US16262726

申请日：2019-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/139 ,  H04N19/463 ,  H04N19/467 ,  H04N19/107 ,  H04N19/159 ,  H04N19/196 ,  H04N19/513 ,  H04N19/593

Abstract: A decoding device and a decoding method for decoding a target information from a bitstream of video data are provided, wherein the bitstream comprises a prediction parameter encoded in the bitstream. The decoding device is configured to calculate a randomized host signal based on the prediction parameter and a pseudo-random signal, and to apply a check function to the randomized host signal and thereby obtain the target information. An encoding device and an encoding method, and computer-readable storage media for encoding and for decoding are also disclosed.

公开(公告)号：US10440368B2

公开(公告)日：2019-10-08

申请号：US16053144

申请日：2018-08-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/102 ,  H04N19/18 ,  H04N19/174 ,  H04N19/467 ,  H04N19/105 ,  H04N19/117 ,  H04N19/187 ,  H04N19/61 ,  H04N19/182

Abstract: The invention relates to methods for hiding values of a hierarchically layered coding unit in other values comprised by the coding unit is provided (encoding methods). Furthermore, the invention also relates to methods for reconstructing hidden data from an encoded coding unit (decoding method). The invention is also related to the implementation of these encoding and/or decoding methods in an apparatus and on a (non-transitory) computer readable medium. According to the invention, data are hidden in values of different layers of a hierarchically structured coding unit.

公开(公告)号：US12301857B2

公开(公告)日：2025-05-13

申请号：US17716410

申请日：2022-04-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Haitao Yang ,  Alexey Konstantinovich Filippov ,  Vasily Alexeevich Rufitskiy

IPC: H04N19/503 ,  H04N19/105 ,  H04N19/109 ,  H04N19/119 ,  H04N19/126 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: The present disclosure relates to moving picture processing, and in particular, to cases where non-rectangular partitioning modes are used for inter-prediction in a combination with weighted prediction (WP) for coding fades. Non-rectangular modes refer to those inter-prediction modes, in which case a current block is partitioned/sliced in a non-rectangular way (slices). Such modes may be triangular (TMP) or geometric (GEO) prediction. The aim of the disclosure is to harmonize non-rectangular partitioning modes with WP by way of disabling TMP/GEO when WP is applied. This may be accomplished by checking whether all reference pictures for a current slice are disabled, and if this is the case to disable the slice-level WP for non-rectangular prediction units. Whether the reference pictures are disabled may be determined based on conditions applied on set values, for example, of luma/chroma flags, which refer to the reference pictures.