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公开(公告)号：US20250069185A1
公开(公告)日：2025-02-27
申请号：US18813778
申请日：2024-08-23
Applicant: Douyin Vision Co., Ltd. , Lemon Inc.
Inventor： Ziyao XU , Yi LIU , Shijie ZHAO , Junlin LI , Li ZHANG
IPC: G06T3/40
Abstract: An image processing method, an electronic device and a storage medium are provided. The method includes acquiring a first image; performing down-sampling processing on the first image to obtain a first down-sampled image; performing average pooling processing on pixels in the first down-sampled image to obtain a first pooled image; determining a plurality of pixel merging weights corresponding to pixels in the first down-sampled image; and performing pixel merging processing on the first down-sampled image and the first pooled image based on the plurality of pixel merging weights to obtain a second image.
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公开(公告)号：US20220329826A1
公开(公告)日：2022-10-13
申请号：US17837867
申请日：2022-06-10
Applicant: Lemon Inc.
Inventor： Yang WANG , Kai ZHANG , Li ZHANG , Yuwen HE , Hongbin LIU
IPC: H04N19/159 , H04N19/176 , H04N19/70 , H04N19/147
Abstract: Example implementations include a method, apparatus and computer-readable medium of video processing, including constructing, during a conversion between a current video block of a video and a bitstream of the video, at least one template set for the current video block from a plurality of sub-templates. The one or more sub-templates may be selected from a plurality of sub-templates including: a left sub-template, an above sub-template, a right-above sub-template, a left-below sub-template, and a left-above sub-template. The implementations further include deriving at least one intra-prediction mode (IPM) based on cost calculations. The implementations include determining, based on the at least one IPM, a final predictor of the current video block. The implementations include performing the conversion based on the final predictor.
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公开(公告)号：US20220239899A1
公开(公告)日：2022-07-28
申请号：US17161335
申请日：2021-01-28
Applicant: Lemon Inc.
IPC: H04N19/105 , H04N19/132 , H04N19/46 , H04N19/186 , H04N19/176
Abstract: Implementations of the present disclosure provide a solution for encoding and decoding motion information. In this solution, during a conversion between a current video block of a video and a bitstream of the video, a group type of a subgroup of candidates of motion information for the current video block is determined, wherein the group type indicating whether the subgroup of candidates are to be reordered. Further, a list of candidates are constructed based on the group type; and the motion information for the current video block is derived from the list of candidates.
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公开(公告)号：US20220232241A1
公开(公告)日：2022-07-21
申请号：US17673660
申请日：2022-02-16
Applicant: Lemon Inc.
Inventor： Yang WANG , Kai ZHANG , Li ZHANG , Yuwen HE , Hongbin LIU
Abstract: Aspects include a method, apparatus and computer-readable medium of decoding video or blocks of an image, including receiving a bitstream of the image, deriving, for a block of the image in the bitstream, multiple intra-prediction modes (IPMs) to use in decoding the block, determining, based on the multiple IPMs, a final predictor to use in decoding the block, and decoding the block using the final predictor. Other aspects include method, apparatus and computer-readable medium for similarly encoding video or blocks of an image.
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公开(公告)号：US20220070497A1
公开(公告)日：2022-03-03
申请号：US17464415
申请日：2021-09-01
Applicant: Lemon Inc.
Inventor： Ye-Kui WANG , Li ZHANG
IPC: H04N19/70 , H04N19/176 , H04N19/184 , H04N19/517
Abstract: Systems, methods and apparatus for processing image data are described. One example method includes performing a conversion between a visual media file and a bitstream. The visual media file comprises image items each comprising a sequence of one or more pictures according to a media file format, and the bitstream includes access units each consisting of one or more pictures each belonging to a layer according to a video coding format. The media file format specifies that image items comprising pictures originated from the bitstream are allowed to be associated with different instances of a property descriptor that indicates high-level characteristics of the bitstream.
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Patent Agency Ranking
公开(公告)号：US20220295075A1
公开(公告)日：2022-09-15
申请号：US17198194
申请日：2021-03-10
Applicant: Lemon Inc.
Inventor： Jizheng XU , Weijia ZHU , Li ZHANG
IPC: H04N19/156 , H04N19/513 , H04L29/06
Abstract: Example implementations include a method for video processing, comprising performing a conversion between a current video unit of a video and a bitstream of the video according to a rule, wherein the rule specifies performing the conversion based on a predefined bitstream.
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公开(公告)号：US20220286709A1
公开(公告)日：2022-09-08
申请号：US17187667
申请日：2021-02-26
Applicant: Lemon Inc.
Inventor： Weijia ZHU , Jizheng XU , Li ZHANG , Yue WANG
IPC: H04N19/70 , H04N19/189 , H04N19/169 , H04N19/186 , H04N19/159
Abstract: Example implementations include a method, apparatus and computer-readable medium of video coding, comprising performing a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and at least one base layer, and wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.
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公开(公告)号：US20220224915A1
公开(公告)日：2022-07-14
申请号：US17148383
申请日：2021-01-13
Applicant: Lemon Inc.
Inventor： Yang WANG , Kai ZHANG , Li ZHANG , Yuwen HE , Hongbin LIU
IPC: H04N19/159 , H04N19/147 , H04N19/176 , H04N19/70
Abstract: Example implementations include a method, apparatus and computer-readable medium of video processing, including constructing, during a conversion between a current video block of a video and a bitstream of the video, at least one template set for the current video block from a plurality of sub-templates. The one or more sub-templates may be selected from a plurality of sub-templates including: a left sub-template, an above sub-template, a right-above sub-template, a left-below sub-template, and a left-above sub-template. The implementations further include deriving at least one intra-prediction mode (IPM) based on cost calculations. The implementations include determining, based on the at least one IPM, a final predictor of the current video block. The implementations include performing the conversion based on the final predictor.
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公开(公告)号：US20220239897A1
公开(公告)日：2022-07-28
申请号：US17157706
申请日：2021-01-25
Applicant: Lemon Inc.
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/103 , H04N19/176 , H04N19/184 , H04N19/186
Abstract: Example implementations include a method, apparatus and computer-readable medium of video coding, comprising receiving the code block and one or more neighbor samples and determining the value of beta based on at least one of an average chroma value, a midrange chroma value, a median chroma value, an average luma value, a midrange luma value, or a median luma value of two or more neighbor samples.
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公开(公告)号：US20220224922A1
公开(公告)日：2022-07-14
申请号：US17148538
申请日：2021-01-13
Applicant: Lemon Inc.
Inventor： Yang WANG , Kai ZHANG , Li ZHANG , Yuwen HE , Hongbin LIU
IPC: H04N19/189 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/186 , H04N19/176
Abstract: Example implementations include a method and of video processing, comprising determining, during a conversion between a current video unit of a video and a bitstream of the video, to apply a prediction mode derivation tool to the current video unit, wherein in the prediction mode derivation tool, at least one intra prediction mode (IPM) is derived for the current video unit based on cost calculations between reconstructed samples and prediction samples of a template region related the current video unit. The implementations further include performing the conversion based on the determining.
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