VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE USING HIGH-PRECISION SKIP ENCODING AND METHOD THEREOF

    公开(公告)号:US20240323430A1

    公开(公告)日:2024-09-26

    申请号:US18732884

    申请日:2024-06-04

    CPC classification number: H04N19/52 H04N19/176

    Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

    Video encoding device and video decoding device using high-precision skip encoding and method thereof

    公开(公告)号:US12052435B2

    公开(公告)日:2024-07-30

    申请号:US17959855

    申请日:2022-10-04

    CPC classification number: H04N19/52 H04N19/176

    Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

    Image encoding method and apparatus, and image decoding method and apparatus

    公开(公告)号:US11528479B2

    公开(公告)日:2022-12-13

    申请号:US17375674

    申请日:2021-07-14

    Abstract: An image decoding method includes: splitting a first block included in an image on the basis of at least one of a split type and a split direction of the first block to determine at least one second block from the first block; determining one of a prediction mode of the at least one second block and whether to split the at least one second block on the basis of at least one of a size and a shape of the determined at least one second block; obtaining a prediction block of a block included in the at least one second block on the basis of one of the determined prediction mode and whether to split the at least one second block; and restoring the block included in the at least one second block on the basis of the prediction block of the block included in the at least one second block. Here, the split type represents one of binary-split, tri-split, and quad-split.

    Intra-prediction method for reducing intra-prediction errors and device for same

    公开(公告)号:US11277615B2

    公开(公告)日:2022-03-15

    申请号:US16077830

    申请日:2017-02-16

    Abstract: Provided is an image predicting method including: obtaining a plurality of adjacent samples located adjacent to a current block; determining an adjacent sample as a reference sample to be referred to by a current sample, the adjacent sample being from among the plurality of adjacent samples and being indicated by a direction of an intra mode of the current block; and adjusting a sample value of the reference sample according to a reference distance indicating a distance between the reference sample and the current sample, and determining a prediction value of the current sample based on the adjusted sample value of the reference sample.

    Method and apparatus for encoding/decoding image

    公开(公告)号:US10904537B2

    公开(公告)日:2021-01-26

    申请号:US16339574

    申请日:2016-10-10

    Abstract: Provided is a method of decoding an image, the method including: determining at least one coding unit for splitting an image, based on block shape information of a current coding unit; determining at least one transformation unit, based on a shape of the current coding unit included in the at least one coding unit; and decoding the image by performing inverse transformation based on the at least one transformation unit, wherein the block shape information indicates whether the current coding unit is a square shape or a non-square shape. Also, provided is an encoding method corresponding to the decoding method. In addition, provided is an encoding apparatus or decoding apparatus capable of performing the encoding or decoding method.

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