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51. 发明申请

WO2018199792A1 APPARATUSES AND METHODS FOR ENCODING AND DECODING A PANORAMIC VIDEO SIGNAL 审中-公开
公开(公告)号：WO2018199792A1
公开(公告)日：2018-11-01
申请号：PCT/RU2017/000270
申请日：2017-04-26
申请人： HUAWEI TECHNOLOGIES CO., LTD , IKONIN, Sergey Yurievich
发明人： IKONIN, Sergey Yurievich
IPC分类号： H04N19/503 , H04N19/51 , H04N19/176
摘要： The invention relates to an apparatus (101) for encoding a video signal, wherein the video signal is a two-dimensional projection of a panoramic video signal and comprises a plurality of successive frames, including a reference frame and a current frame, wherein each frame of the plurality of successive frames comprises a plurality of video coding blocks and wherein each video coding block comprises a plurality of pixels. The encoding apparatus (101) comprises: an inter prediction unit (105) to generate a predicted video coding block for the current video coding block of the current frame on the basis of the corresponding video coding block of the reference frame, wherein the inter prediction unit (105) is configured to determine a 3D reference motion vector on the basis of a first 3D position defined by a projection of a first pixel of a current video coding block of the current frame onto a viewing sphere and on the basis of a second 3D position defined by a projection of a second pixel of the corresponding video coding block of the reference frame onto the viewing sphere and to predict at least one pixel of the current video coding block on the basis of the 3D reference motion vector; and an encoding unit (103) configured to encode the current video coding block of the current frame on the basis of the predicted video coding block. Moreover, the invention relates to a corresponding decoding apparatus (151), encoding method and decoding method.

52. 发明申请

WO2017052409A8 APPARATUS AND METHOD FOR VIDEO MOTION COMPENSATION WITH SELECTABLE INTERPOLATION FILTER 审中-公开
标题翻译：利用可选插值滤波器进行视频运动补偿的装置和方法
公开(公告)号：WO2017052409A8
公开(公告)日：2017-03-30
申请号：PCT/RU2015/000614
申请日：2015-09-25
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： IKONIN, Sergey Yurievich , SYCHEV, Maxim Borisovitch , STEPIN, Victor Alexeevich , CHERNYAK, Roman Igorevich
IPC分类号： H04N19/50 , H04N19/82 , H04N19/523
摘要： The present invention relates to a video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream, comprising a frame buffer (207) configured to store at least one reference frame of the video stream, a prediction unit (210) configured to generate a prediction block of a current block of a current frame from a reference block of the reference frame according to a motion vector having fractional-pel resolution, said fractional-pel resolution defining an integer-pel position and fractional-pel positions. The prediction unit (210) is configured to interpolate the reference block according to the fractional-pel resolution via one of the at least three following interpolation filters: a blurring interpolation filter (302), a tap filter (303), and the tap filter (303) followed by a sharpening filter (311).
摘要翻译：本发明涉及一种用于根据运动补偿将后续帧的视频流预测编码为编码的视频比特流的视频编码器，包括：帧缓冲器（207），被配置为存储至少一个（210），被配置为根据具有分数柱分辨率的运动矢量从所述参考帧的参考块产生当前帧的当前块的预测块，所述分数像素分辨率定义整数像素位置和分数像素位置。预测单元（210）被配置为经由至少三个以下插值滤波器中的一个，根据分数像素分辨率来内插参考块：模糊插值滤波器（302），抽头滤波器（303）和抽头滤波器（303），之后是锐化滤波器（311）。

53. 发明申请

WO2021246913A1 QUANTIZATION FOR NEURAL NETWORKS 审中-公开
公开(公告)号：WO2021246913A1
公开(公告)日：2021-12-09
申请号：PCT/RU2021/050105
申请日：2021-04-21
申请人： HUAWEI TECHNOLOGIES CO., LTD. , KARABUTOV, Alexander Alexandrovich
发明人： COHEN, Robert A. , CHOI, Hyomin , ALVAR, Saeed Ranjbar , BAJIC, Ivan , ALSHINA, Elena Alexandrovna , IKONIN, Sergey Yurievich , SYCHEV, Maxim Borisovitch
IPC分类号： G06N3/04 , G06N3/08 , G06N3/0454 , G06N5/003
摘要： The present disclosure relates to methods and apparatuses for modifying a quantizer. In particular, within a preliminary set of quantization levels, at least one quantization level is modified based on optimization involving distortion for a predetermined set of input values. At least one another quantization level out of the preliminary set is not modified. The not modified (non-modifiable) quantization level is the minimum clipping value or the maximum clipping value. The modification may facilitate increasing the dynamic range of the quantized / inverse-quantized data. Such modified quantizer may be advantageous for employment in neural networks to compress their data such as feature maps or the like. It may improve accuracy of the neural network.

54. 发明申请

WO2020259621A1 CLIPPING LEVELS FOR NON-LINEAR ADAPTIVE LOOP FILTER 审中-公开
公开(公告)号：WO2020259621A1
公开(公告)日：2020-12-30
申请号：PCT/CN2020/098229
申请日：2020-06-24
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： STEPIN, Victor Alexeevich , IKONIN, Sergey Yurievich , ALSHINA, Elena Alexandrovna
IPC分类号： H04N19/186
摘要： A method for in-loop filtering by performing adaptive loop filtering on a reconstructed frame of a video stream, implemented by an encoding device or a decoding device, comprising forming differences between a pixel of the reconstructed frame and neighboring pixels in a connected area of the pixel, clipping the differences according to respective clipping levels, forming a weighted sum of the clipped differences, and adding the weighted sum to the pixel to determine a filtered pixel, wherein the respective clipping levels are chosen from a same set of clipping levels for the luma and chroma components.

55. 发明申请

WO2020256598A1 AN ENCODER, A DECODER AND CORRESPONDING METHODS OF CHROMA QANTIZATION CONTROL 审中-公开
公开(公告)号：WO2020256598A1
公开(公告)日：2020-12-24
申请号：PCT/RU2020/050131
申请日：2020-06-22
申请人： HUAWEI TECHNOLOGIES CO., LTD. , IKONIN, Sergey Yurievich
发明人： IKONIN, Sergey Yurievich , CHERNYAK, Roman Igorevich , SOLOVYEV, Timofey Mikhailovich , KARABUTOV, Alexander Alexandrovich , ALSHINA, Elena Alexandrovna
IPC分类号： H04N19/186 , H04N19/124
摘要： 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.

56. 发明申请

WO2020251420A2 REMOVING BLOCKING ARTIFACTS INSIDE CODING UNIT PREDICTED BY INTRA BLOCK COPY 审中-公开
公开(公告)号：WO2020251420A2
公开(公告)日：2020-12-17
申请号：PCT/RU2020/050263
申请日：2020-10-02
申请人： HUAWEI TECHNOLOGIES CO., LTD. , KARABUTOV, Alexander Alexandrovich
发明人： SOLOVYEV, Timofey Mikhailovich , CHERNYAK, Roman Igorevich , IKONIN, Sergey Yurievich , ALSHINA, Elena Alexandrovna
IPC分类号： H04N19/82 , H04N19/86
摘要： A method of performing a deblocking filter for blocks predicted by using intra block copy prediction mode, the method performed by coding device, the method comprising the following steps: determining a position of a reference block, constructing a prediction for the current block from the reference block, performing a deblocking process for each color component, comprising: calculating the boundary strength for each sub-block of the current block in vertical direction, respectively, performing deblocking filtering in vertical direction, calculating the boundary strength for each sub-block of the current block in horizontal direction, respectively, and performing deblocking filtering in horizontal direction; wherein the size of each sub-block is at least 4x4.

57. 发明申请

WO2020180214A1 THE METHOD OF EFFICIENT SIGNALLING OF CBF FLAGS 审中-公开
公开(公告)号：WO2020180214A1
公开(公告)日：2020-09-10
申请号：PCT/RU2020/050033
申请日：2020-03-02
申请人： HUAWEI TECHNOLOGIES CO., LTD. , CHERNYAK, Roman Igorevich
发明人： CHERNYAK, Roman Igorevich , ZHAO, Yin , IKONIN, Sergey Yurievich , CHEN, Jianle
IPC分类号： H04N19/186 , H04N19/60 , H04N19/70
摘要： A method of coding implemented by a decoding device or encoding device, the method comprising obtaining a bitstream, the bitstream comprises a transform unit syntax, (in an example, the transform unit syntax element can be either coded for a whole block or coded for multiple sub-transform units that are obtained by Sub-Block Transform for inter block (SBT), or in order to satisfy maximal transform unit size restrictions); the syntax comprises at least two cbf flags for chroma blocks (in an example, transform unit syntax correspond to either transform unit or sub-transform units which include two chroma cbf flags: tu_cbf_cb and tu_cbf_cb - one flag for each chroma plane), a chroma cbf flag specifies whether certain block has residue in correspondent color plane; deriving a value of a luma cbf flag tu_cbf_luma based on one or any combination of a value of a cu_cbf flag, values of two chroma cbf flags corresponding to a current transform unit or sub-transform unit, location of the sub-transform unit within transform unit, values of luma and chroma cbf flags correspondent to previous sub- transform units in the current transform unit.

58. 发明申请

WO2020111981A1 APPARATUS AND METHOD FOR CHROMINANCE QUANTIZATION PARAMETER DERIVATION 审中-公开
公开(公告)号：WO2020111981A1
公开(公告)日：2020-06-04
申请号：PCT/RU2019/050226
申请日：2019-11-26
申请人： HUAWEI TECHNOLOGIES CO., LTD. , CHERNYAK, Roman Igorevich
发明人： CHERNYAK, Roman Igorevich , CHEN, Jianle , KARABUTOV, Alexander Alexandrovich , IKONIN, Sergey Yurievich
IPC分类号： H04N19/124 , H04N19/18 , H04N19/186
摘要： A method for inverse quantization of a current block of a picture is provided. The method is performed by a decoder, and the picture comprises a luminance component and a chrominance component, the luminance component and the chrominance component are partitioned into multiple blocks. The method includes that obtaining one or more existing quantization parameter, QP values from a received bitstream, wherein the one or more existing QP values relate to a current block in the chrominance component; determining a QP value for the current block in the chrominance component based on the one or more existing QP values; performing inverse quantization on the current block in the chrominance component by using the determined QP value.

59. 发明申请

WO2020085956A1 SEPARATE MERGE LIST AND INTRA-INTER TECHNIQUES HARMONIZATION FOR VIDEO CODING 审中-公开
公开(公告)号：WO2020085956A1
公开(公告)日：2020-04-30
申请号：PCT/RU2019/050201
申请日：2019-10-25
申请人： HUAWEI TECHNOLOGIES CO., LTD. , CHERNYAK, Roman Igorevich
发明人： CHERNYAK, Roman Igorevich , SOLOVYEV, Timofey Mikhailovich , IKONIN, Sergey Yurievich , KARABUTOV, Alexander Alexandrovich , CHEN, Jianle
IPC分类号： H04N19/103
摘要： The present invention relates to methods and apparatuses for encoding video data into a bitstream and for decoding video data received in a bitstream. A second control flag indicating whether or not to use multi-hypothesis prediction for intra and inter mode is generated and transmitted only conditionally, upon a determination whether or not separate merge list technique for subblock merge candidates is used. On the other hand, a decoder is capable to decide about usage of multi-hypothesis prediction for intra and inter mode and separate merge list technique for subblock merge candidates although the second control flag is transmitted only conditionally.

60. 发明申请

WO2020057662A1 Apparatus and method for inverse quantization 审中-公开
公开(公告)号：WO2020057662A1
公开(公告)日：2020-03-26
申请号：PCT/CN2019/107134
申请日：2019-09-21
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： CHERNYAK, Roman , KARABUTOV, Alexander , IKONIN, Sergey Yurievich , SOLOVYEV, Timofey Mikhailovich , YANG, Haitao , CHEN, Jianle , ZHAO, Yin
IPC分类号： H04N19/124 , H04N19/186 , H04N19/176
摘要： A method for inverse quantization of a current block of a picture is provided. The method is performed by a decoder, and the picture comprises a luminance component and a chrominance component, the luminance component and the chrominance component are partitioned into multiple blocks. The method includes that obtaining one or more existing quantization parameter, QP values from a received bitstream, wherein the one or more existing QP values relate to a current block in the chrominance component; determining a QP value for the current block in the chrominance component based on the one or more existing QP values; performing inverse quantization on the current block in the chrominance component by using the determined QP value.

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