公开(公告)号：US11979591B2

公开(公告)日：2024-05-07

申请号：US17714014

申请日：2022-04-05

Applicant: Lemon Inc.

Inventor： Yue Li ,  Li Zhang ,  Kai Zhang

IPC: H04N19/436 ,  H04N19/124 ,  H04N19/132 ,  H04N19/154 ,  H04N19/169 ,  H04N19/172 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70 ,  H04N19/82

CPC classification number: H04N19/436 ,  H04N19/124 ,  H04N19/132 ,  H04N19/154 ,  H04N19/172 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/30 ,  H04N19/70 ,  H04N19/82

Abstract: A method implemented by a video coding apparatus includes applying a neural network (NN) filter to an unfiltered sample of a video unit to generate a filtered sample, wherein the NN filter is based on an NN filter model generated using a quality-level indicator (QI) input. The method also includes converting between a video media file and a bitstream based on the filtered sample that was generated.

公开(公告)号：US11902537B2

公开(公告)日：2024-02-13

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 ,  H04N19/70 ,  H04N19/176 ,  H04N19/147

CPC classification number: 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.

公开(公告)号：US20240048775A1

公开(公告)日：2024-02-08

申请号：US18488782

申请日：2023-10-17

Applicant: Lemon Inc.

Inventor： Yue Li ,  Li Zhang ,  Kai Zhang

IPC: H04N19/85 ,  H04N19/107 ,  H04N19/124 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/573 ,  H04N19/96 ,  G06N3/04

CPC classification number: H04N19/85 ,  H04N19/107 ,  H04N19/124 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/573 ,  H04N19/96 ,  G06N3/04

Abstract: Methods, systems, apparatus for media processing are described. One example method of digital media processing includes determining, for a conversion between visual media data and a bitstream of the visual media data, how to apply one or more convolutional neural network filters to at least some samples of a video unit of the visual media data according to a rule; and performing the conversion based on the determining.

公开(公告)号：US11863768B2

公开(公告)日：2024-01-02

申请号：US17464251

申请日：2021-09-01

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang ,  Li Zhang

IPC: H04N19/37 ,  G06F16/438 ,  H04N19/169 ,  H04N19/30 ,  H04N19/70 ,  H04N19/124 ,  H04N19/172 ,  H04N19/593

CPC classification number: H04N19/37 ,  G06F16/4393 ,  H04N19/124 ,  H04N19/172 ,  H04N19/188 ,  H04N19/30 ,  H04N19/593 ,  H04N19/70

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 pictures according to a media file format, and the bitstream comprises access units each comprising one or more pictures each belonging to a layer according to a video coding format. The media file format specifies a suggested transition period of an image item to be applied for a transition between the image item and a next image item during displaying of the pictures as a slideshow.

公开(公告)号：US20230283766A1

公开(公告)日：2023-09-07

申请号：US18316189

申请日：2023-05-11

Applicant: Lemon Inc.

Inventor： Zhipin Deng ,  Kai Zhang ,  Li Zhang

IPC: H04N19/103 ,  H04N19/186 ,  H04N19/184 ,  H04N19/176

CPC classification number: H04N19/103 ,  H04N19/186 ,  H04N19/184 ,  H04N19/176

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.

公开(公告)号：US11683474B2

公开(公告)日：2023-06-20

申请号：US17157706

申请日：2021-01-25

Applicant: Lemon Inc.

Inventor： Zhipin Deng ,  Kai Zhang ,  Li Zhang

IPC: H04N19/103 ,  H04N19/186 ,  H04N19/184 ,  H04N19/176

CPC classification number: 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.

公开(公告)号：US11595672B2

公开(公告)日：2023-02-28

申请号：US17464311

申请日：2021-09-01

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang ,  Li Zhang

IPC: H04N19/37 ,  H04N19/124 ,  H04N19/172 ,  G06F16/438 ,  H04N19/169 ,  H04N19/30 ,  H04N19/593 ,  H04N19/70

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 comprises access units each comprising one or more pictures each belonging to a layer according to a video coding format. The video coding format defines multiple profiles. The media file format specifies that the bitstream is represented in a file having a specific brand, and that one or more profiles used for representing the video in the bitstream are agnostic of the specific brand.

公开(公告)号：US20220394240A1

公开(公告)日：2022-12-08

申请号：US17829892

申请日：2022-06-01

Applicant: Lemon Inc.

Inventor： Zhaobin Zhang ,  Li Zhang ,  Yue Li ,  Kai Zhang

IPC: H04N19/105 ,  H04N19/107 ,  H04N19/137 ,  H04N19/176

Abstract: A mechanism for processing video data is disclosed. A determination is made to apply an end-to-end neural network-based video codec to a current video unit of a video. The end-to-end neural network-based video codec comprises a spatial-temporal adaptive compression (STAC) component including a frame extrapolative compression (FEC) branch and an image compression branch. A conversion is performed between the current video unit and a bitstream of the video via the end-to-end neural network-based video codec.