METHODS OF CODING IMAGES/VIDEOS WITH ALPHA CHANNELS

    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.

    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.

    METHODS OF CODING IMAGES/VIDEOS WITH ALPHA CHANNELS

    公开(公告)号:US20220286666A1

    公开(公告)日:2022-09-08

    申请号:US17187674

    申请日:2021-02-26

    Applicant: Lemon Inc.

    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 a base layer, and wherein the bitstream comprises a current block in the alpha layer of a current picture that is predicted from one or more reference blocks in the base layer.

    METHODS OF CODING IMAGES/VIDEOS WITH ALPHA CHANNELS

    公开(公告)号:US20220279185A1

    公开(公告)日:2022-09-01

    申请号:US17187670

    申请日:2021-02-26

    Applicant: Lemon Inc.

    Abstract: Example implementations include a method, apparatus and computer-readable medium of video coding, comprising determining, for a conversion between a video comprising a plurality of pictures and a bitstream of the video, first layer information which is utilized in a first process performed on a first layer of each picture. The implementations further include determining, second layer information which is utilized in a second process performed on a second layer of each picture. Additionally, the implementations further include performing the conversion for the second layer based on the first layer information and the second layer information.

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