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    Usage of templates for decoder-side intra mode derivation
    11.
    发明授权
    Usage of templates for decoder-side intra mode derivation 有权

    公开(公告)号：US11388421B1

    公开(公告)日：2022-07-12

    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 ,  H04N19/70 ,  H04N19/176 ,  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.

    Configurable Neural Network Model Depth In Neural Network-Based Video Coding
    14.
    发明申请
    Configurable Neural Network Model Depth In Neural Network-Based Video Coding 有权

    公开(公告)号：US20230023579A1

    公开(公告)日：2023-01-26

    申请号：US17848068

    申请日：2022-06-23

    Applicant: Lemon, Inc.

    Inventor： Yue Li ,  Kai Zhang ,  Li Zhang

    IPC: H04N19/117 ,  H04N19/80 ,  H04N19/105 ,  H04N19/176

    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, where the NN filter is based on a first NN filter model having a first depth, or a second NN filter model having a second depth, where the depth comprises a number of residual blocks of the respective NN filter model, and where the second depth is different than the first depth. The method also includes performing a conversion between a video media file and a bitstream based on the filtered sample.

    On Padding Methods For Neural Network-Based In-Loop Filter
    15.
    发明申请
    On Padding Methods For Neural Network-Based In-Loop Filter 有权

    公开(公告)号：US20220394309A1

    公开(公告)日：2022-12-08

    申请号：US17744060

    申请日：2022-05-13

    Applicant: Lemon Inc.

    Inventor： Yue Li ,  Li Zhang ,  Kai Zhang

    IPC: H04N19/82 ,  G06T9/00 ,  H04N19/184 ,  H04N19/124

    Abstract: A method implemented by a video coding apparatus. The method includes determining, in real time, padding dimensions for padding samples to be applied to a video unit of a video for in-loop filtering, wherein d1, d2, d3, and d4 represent the padding dimensions corresponding to top, bottom, left, and right boundaries of the video unit, respectively; and performing a conversion between a video unit and a bitstream of the video based on the padding dimensions that were determined. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.

    Techniques for decoding or coding images based on multiple intra-prediction modes
    17.
    发明授权
    Techniques for decoding or coding images based on multiple intra-prediction modes 有权

    公开(公告)号：US11290736B1

    公开(公告)日：2022-03-29

    申请号：US17148356

    申请日：2021-01-13

    Applicant: Lemon Inc.

    Inventor： Yang Wang ,  Kai Zhang ,  Li Zhang ,  Yuwen He ,  Hongbin Liu

    IPC: H04N19/50 ,  H04N19/70

    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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