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    METHOD AND APPARATUS OF ADAPTIVE INTER PREDICTION IN VIDEO CODING
    42.
    发明申请
    METHOD AND APPARATUS OF ADAPTIVE INTER PREDICTION IN VIDEO CODING 审中-公开

    公开(公告)号：US20190045183A1

    公开(公告)日：2019-02-07

    申请号：US15757694

    申请日：2016-09-05

    Applicant: MEDIATEK INC.

    Inventor： Ching-Yeh CHEN ,  Chih-Wei HSU ,  Han HUANG ,  Yu-Wen HUANG

    IPC: H04N19/109 ,  H04N19/117 ,  H04N19/176 ,  H04N19/577 ,  H04N19/137

    Abstract: A method and apparatus of video coding using adaptive Inter prediction are disclosed. A selected Inter prediction process is determined, wherein the selected Inter prediction process selects an Inter prediction filter from multiple Inter prediction filters for the current block depending on first pixel data comprising neighbouring reconstructed pixels (NRP) of the current block. The selected Inter prediction process may be further determined depending on extra motion compensated pixels (EMCP) around a motion-compensated reference block corresponding to the current block. Distortion between the NRP and EMCP can be used to determine the selected Inter prediction filter. The distortion can be calculated using a sum of absolute differences or squared differences between the NRP and the EMCP.

    METHOD AND APPARATUS OF PREDICTION BINARY TREE STRUCTURE FOR VIDEO AND IMAGE CODING
    43.
    发明申请
    METHOD AND APPARATUS OF PREDICTION BINARY TREE STRUCTURE FOR VIDEO AND IMAGE CODING 审中-公开

    公开(公告)号：US20180359494A1

    公开(公告)日：2018-12-13

    申请号：US15780544

    申请日：2016-12-29

    Applicant: MEDIATEK INC.

    Inventor： Chih-Wei HSU ,  Ching-Yeh CHEN

    IPC: H04N19/96 ,  H04N19/176 ,  H04N19/50 ,  H04N19/66 ,  H04N19/124

    CPC classification number: H04N19/96 ,  H04N19/119 ,  H04N19/124 ,  H04N19/176 ,  H04N19/50 ,  H04N19/66 ,  H04N19/70

    Abstract: A method and apparatus for partitioning a coding unit into one or more prediction units are disclosed. A prediction binary tree structure corresponding to a binary tree partitioning process for the current block is determined. The current block is partitioned into one or more prediction units according to the prediction binary tree structure. In the encoder side, a prediction process is applied to each prediction unit to generate prediction information for each prediction unit. The prediction information for each prediction unit associated with each prediction unit are encoded into a bitstream for the current block. In the decoder side, each prediction unit is reconstructed based on previous reconstructed data and prediction information of each prediction unit. The prediction information of each prediction unit are derived from the video bitstream. The current block is reconstructed based on the prediction units that are reconstructed according to the prediction binary tree structure derived.

    CANDIDATE REORDERING AND MOTION VECTOR REFINEMENT FOR GEOMETRIC PARTITIONING MODE
    45.
    发明申请
    CANDIDATE REORDERING AND MOTION VECTOR REFINEMENT FOR GEOMETRIC PARTITIONING MODE 有权

    公开(公告)号：US20250150600A1

    公开(公告)日：2025-05-08

    申请号：US18684236

    申请日：2022-08-15

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yao CHIU ,  Chih-Hsuan LO ,  Chun-Chia CHEN ,  Chih-Wei HSU ,  Ching-Yeh CHEN ,  Tzu-Der CHUANG

    IPC: H04N19/176 ,  G06V10/75 ,  H04N19/119 ,  H04N19/139 ,  H04N19/159 ,  H04N19/513

    Abstract: A method that reorders partitioning candidates or motion vectors based on template matching costs for geometric prediction mode (GPM) is provided. A video coder receives data to be encoded or decoded as a current block of a current picture of a video. The current block is partitioned into first and second partitions by a bisecting line defined by an angle-distance pair. The video coder identifies a list of candidate prediction modes for coding the first and second partitions. The video coder computes a template matching (TM) cost for each candidate prediction mode in the list. The video coder receives or signals a selection of a candidate prediction mode based on an index that is assigned to the selected candidate prediction mode based on the computed TM costs. The video coder reconstructs the current block by using the selected candidate prediction mode to predict the first and second partitions.

    Method and Apparatus for Multiple Hypothesis Prediction in Video Coding System
    46.
    发明公开
    Method and Apparatus for Multiple Hypothesis Prediction in Video Coding System 审中-公开

    公开(公告)号：US20230209060A1

    公开(公告)日：2023-06-29

    申请号：US18060633

    申请日：2022-12-01

    Applicant: MEDIATEK INC.

    Inventor： Man-Shu CHIANG ,  Chih-Wei HSU

    IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

    CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

    Abstract: A method and apparatus for predictive coding. According to the method, combined prediction members are determined, where each of the combined prediction member includes a weighted sum of a first prediction candidate and a second prediction candidate using a target weighting selected from a weighting set. Boundary matching costs associated with the combined prediction members are determined, where each of the boundary matching costs is determined, for the combined prediction member with the target weighting, by using predicted samples of the current block based on the combined prediction member with the target weighting and neighbouring reconstructed samples of the current block. The current block is then encoded or decoded using a final combined prediction decided based on at least one of the boundary matching costs.

    Methods and Apparatuses of Syntax Signaling and Referencing Constraint in Video Coding System
    48.
    发明申请
    Methods and Apparatuses of Syntax Signaling and Referencing Constraint in Video Coding System 有权

    公开(公告)号：US20220256201A1

    公开(公告)日：2022-08-11

    申请号：US17608226

    申请日：2020-04-30

    Applicant: MEDIATEK INC.

    Inventor： Ching-Yeh CHEN ,  Yu-Wen HUANG ,  Chih-Wei HSU ,  Tzu-Der CHUANG ,  Shih-Ta HSIANG

    IPC: H04N19/82 ,  H04N19/174 ,  H04N19/186 ,  H04N19/117 ,  H04N19/136

    Abstract: Encoding methods and apparatuses comprise determining parameters of a specific process for a current slice, signaling in one or more Adaptive Parameter Sets (APSs), performing the specific process using the parameters, signaling an APS ID of each signaled APS in a slice header, and encoding the current slice. Each APS is classified into a category according to a type of data carried by the APS. The APS ID of each signaled APS is counted in a category associated with the specific process and is independent of other categories. Decoding methods and apparatuses comprise parsing an APS ID of each referenced APS from a slice header of a current slice for a specific process, determining parameters from each referenced APS according to the parsed APS ID and a category associated with the specific process, performing the specific process on the current slice and decoding the current slice.

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