公开(公告)号：US20210127113A1

公开(公告)日：2021-04-29

申请号：US17139913

申请日：2020-12-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Victor Alexeevich STEPIN ,  Sergey Yurievich IKONIN ,  Roman Igorevich CHERNYAK ,  Jianle Chen ,  Dmitry Yurievich KURYSHEV

IPC: H04N19/129 ,  H04N19/105 ,  H04N19/117 ,  H04N19/82 ,  H04N19/60 ,  H04N19/176 ,  G06F1/03

Abstract: The invention relates to a filter for video coding, wherein the filter is configured for processing a block for generation of a filtered block, and wherein the block comprises a plurality of pixels. The filter includes one or more processor configured to: scan a current pixel of the block and its neighboring pixels of the current pixel according to a predefined scan template; obtain spectrum components by performing transform for the current pixel and its neighboring pixels; obtain filtered spectrum components based on a filtering parameter and the spectrum components; obtain filtered pixels by performing inverse transform for the filtered spectrum components; and generate a filtered block based on the filtered pixels. The filter is provided allowing improving the efficiency for video coding.

公开(公告)号：US20210127108A1

公开(公告)日：2021-04-29

申请号：US17139900

申请日：2020-12-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Victor Alexeevich STEPIN ,  Sergey Yurievich IKONIN ,  Roman Igorevich CHERNYAK ,  Jianle Chen ,  Dmitry Yurievich KURYSHEV

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/176 ,  H04N19/61 ,  H04N19/159 ,  H04N19/132 ,  H04N19/124

Abstract: The invention relates to a filter for video coding, wherein the filter is configured for processing a block for generation of a filtered block, and wherein the block comprises a plurality of pixels. The filter includes one or more processor configured to: scan a current pixel of the block and its neighboring pixels of the current pixel according to a predefined scan template; obtain spectrum components by performing transform for the current pixel and its neighboring pixels; obtain filtered spectrum components based on a filtering parameter and the spectrum components; obtain filtered pixels by performing inverse transform for the filtered spectrum components; and generate a filtered block based on the filtered pixels. The filter is provided allowing improving the efficiency for video coding.

公开(公告)号：US20190313125A1

公开(公告)日：2019-10-10

申请号：US16450283

申请日：2019-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Victor Alexeevich STEPIN ,  Roman Igorevich CHERNYAK ,  Ruslan Faritovich MULLAKHMETOV

IPC: H04N19/635 ,  H04N19/126 ,  H04N19/117 ,  H04N19/61

Abstract: A video coding apparatus for encoding or decoding a frame of a video, the video coding apparatus comprising a frame reconstruction unit configured to reconstruct the frame, a parameter determination unit configured to determine one or more filter parameters, based on one or more first parameters which are based on the reconstructed frame and one or more second parameters which are based on codec signaling information, and a mixed-domain filtering unit configured to filter in a frequency domain and a pixel domain the reconstructed frame based on the determined filter parameters to obtain a filtered frame.

公开(公告)号：US20180213251A1

公开(公告)日：2018-07-26

申请号：US15934098

申请日：2018-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sergey Yurievich IKONIN ,  Maxim Borisovitch SYCHEV ,  Victor Alexeevich STEPIN

IPC: H04N19/51 ,  G06T5/00 ,  H04N19/82 ,  H04N19/44 ,  H04N19/117 ,  H04N19/176

Abstract: A video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream is provided. The video coder comprises a frame configured to store at least one reference frame of the video stream, an inter prediction unit configured to generate a prediction block of a current block of the current frame from a reference block of the reference frame. The prediction block is generated by a motion vector having a fractional-pel resolution, the fractional-pel resolution defines for each integer position of a motion vector a plurality of associated fractional positions. The video coder further comprises a sharpening filter configured to filter the prediction block, and a control unit configured to control the sharpening filter depending on the integer or fractional position of the motion vector used for generating the prediction block.