-
公开(公告)号：US11375187B2
公开(公告)日：2022-06-28
申请号：US17203261
申请日：2021-03-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sergey Yurievich Ikonin , Victor Alexeevich Stepin , Alexander Alexandrovich Karabutov , Elena Alexandrovna Alshina , Roman Igorevich Chernyak , Jianle Chen , Dmitry Yurievich Kuryshev
IPC: H04N19/117 , H04N19/176 , H04N19/184 , H04N19/70 , H04N19/82
Abstract: A filter is configured for processing a reconstructed frame for generation of a filtered reconstructed frame, and wherein the reconstructed frame comprises a plurality of pixels. The filter includes one or more processor configured to scan a current pixel of the reconstructed 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 reconstructed block based on the filtered pixels.
-
公开(公告)号：US20220182678A1
公开(公告)日：2022-06-09
申请号：US17676966
申请日：2022-02-22
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: H04N19/615 , H04N19/139 , H04N19/176 , H04N19/105 , H04N19/172 , H04N19/132 , H04N19/80
Abstract: A method for coding a video implemented in an encoder or a decoder, comprising: determining control point motion vectors, CPMVs, for a block according to affine inter-prediction, according to a preselected affine motion model, the block being an affine block; performing motion compensation for the block using a pixel-based motion vector field according to values of the CPMVs, upon fulfilling at least one of the following conditions: A) for a predefined size of a sub-block of M×M, during processing of one line, respectively, of the sub-block the number of lines of the reference picture is less than N, where N is an integer and N is larger than 2.
-
公开(公告)号：US20220132150A1
公开(公告)日：2022-04-28
申请号：US17571175
申请日：2022-01-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Timofey Mikhailovich Solovyev , Roman Igorevich Chernyak , Alexander Alexandrovich Karabutov , Sergey Yurievich Ikonin
IPC: H04N19/433 , H04N19/52 , H04N19/96
Abstract: A method for deriving motion information for a current block includes: determining whether the current block and a top neighboring block of the current block are in a same coding tree unit (CTU) or not; obtaining a position of a spatial motion information candidate for the current block; obtaining motion information corresponding to the position of the spatial motion information candidate, depending on the result of whether the current block and top neighboring block of the current block are in the same CTU; adding the obtained motion information to a motion information candidate list for the current block; obtaining a value of a first index of a motion information candidate; and deriving motion information of the current block based on the motion information candidate list and the value of the first index.
-
公开(公告)号：US11240496B2
公开(公告)日：2022-02-01
申请号：US16422428
申请日：2019-05-24
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/117 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/50 , H04N19/61 , H04N19/82
Abstract: A video coding apparatus is described for encoding or decoding a frame of a video, the video coding apparatus comprising a computer program code and a processor configured to carry out operations on the frame of video. The operations include reconstructing the frame, and determining one or more filter parameters and filtering in a frequency domain and a pixel domain a block of the reconstructed frame based on the determined filter parameters to obtain a filtered block of the frame. The determining the one or more filter parameters and filtering in a frequency domain based on the determined filter parameters is performed jointly within a loop, and the one or more filter parameters are based on one or more first parameters that are based on the reconstructed frame and one or more second parameters which are based on a codec signaling information.
-
Patent Agency Ranking
公开(公告)号：US11146825B2
公开(公告)日：2021-10-12
申请号：US16809179
申请日：2020-03-04
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/82 , H04N19/176 , H04N19/184
Abstract: The present disclosure relates to the search of more than one K-integer best-matching blocks per block within an image, corresponding to best patches for subsequent filtering. In particular, the positions of K best-matching blocks for a template block are found within an image search area, by performing calculations of the similarity between the template block and a test block at all offset positions within a search area. The positions of K or more best-matching blocks for a non-template block are found within an image search area, by performing calculations of the similarity between the non-template block and a test block at all offset positions found as offsets of best-matching blocks for all template blocks.
-
公开(公告)号：US20210266552A1
公开(公告)日：2021-08-26
申请号：US17319098
申请日：2021-05-13
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Anand Meher Kotra , Elena Alexandrovna Alshina , Semih Esenlik , Biao Wang , Han Gao , Roman Igorevich Chernyak
IPC: H04N19/124 , H04N19/176 , H04N19/186 , H04N19/117
Abstract: A method for deblocking a chroma block edge between a first chroma block of a first image block and a second chroma block of a second image block. The method includes a decision process which includes: determining a first chroma quantization parameter for the first chroma block based on a first luma quantization parameter of a first luma block of the first image block and a chroma QP mapping table for the first chroma block; determining a second chroma quantization parameter for the second chroma block based on a second luma quantization parameter of a second luma block of the second image block and a chroma QP mapping table for the second chroma block; determining an averaged and rounded chroma quantization parameter based on the first chroma quantization parameter and the second chroma quantization parameter; and determining a threshold parameter based on the averaged and rounded chroma quantization parameter.
-
公开(公告)号：US20210211657A1
公开(公告)日：2021-07-08
申请号：US17203261
申请日：2021-03-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sergey Yurievich Ikonin , Victor Alexeevich Stepin , Alexander Alexandrovich Karabutov , Elena Alexandrovna Alshina , Roman Igorevich Chernyak , Jianle Chen , Dmitry Yurievich Kuryshev
IPC: H04N19/117 , H04N19/176 , H04N19/82 , H04N19/70 , H04N19/184
Abstract: A filter is configured for processing a reconstructed frame for generation of a filtered reconstructed frame, and wherein the reconstructed frame comprises a plurality of pixels. The filter includes one or more processor configured to scan a current pixel of the reconstructed 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 reconstructed block based on the filtered pixels.
-
公开(公告)号：US10965958B2
公开(公告)日：2021-03-30
申请号：US16448956
申请日：2019-06-21
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/635 , H04N19/117 , H04N19/147 , H04N19/172 , H04N19/196 , G06T9/00 , H04N19/154 , H04N19/86 , H04N19/82 , H04N19/60 , H04N19/19 , G06T5/10 , H04N19/176 , G06T5/00
Abstract: An image coding apparatus, comprising an image reconstruction unit configured to reconstruct an image, 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 image 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 image based on the determined filter parameters to obtain a filtered image.
-
公开(公告)号：US10827200B2
公开(公告)日：2020-11-03
申请号：US16450283
申请日：2019-06-24
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/126 , H04N19/19 , H04N19/82 , H04N19/635 , H04N19/117 , H04N19/61 , H04N19/176 , H04N19/154
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.
-
-
-
-
-
-
-
-
Search Results
59
records
(took 0.02 seconds)
