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    OVERLAPPED SEARCH SPACE FOR BI-PREDICTIVE MOTION VECTOR REFINEMENT
    12.
    发明申请
    OVERLAPPED SEARCH SPACE FOR BI-PREDICTIVE MOTION VECTOR REFINEMENT 审中-公开

    公开(公告)号：US20200137416A1

    公开(公告)日：2020-04-30

    申请号：US16730735

    申请日：2019-12-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Semih ESENLIK ,  Zhijie ZHAO ,  Anand Meher KOTRA ,  Han GAO

    IPC: H04N19/573 ,  H04N19/513 ,  H04N19/533 ,  H04N19/56

    Abstract: The present disclosure relates to the performance of motion vector refinement in a search space for multi-reference inter-prediction. Two or more reference pictures are selected, one of those used for motion vector refinement. Based on an initial estimate of a motion vector to the reference picture for motion vector refinement, a search space in this reference image is constructed. Using template matching, the first motion vector is refined. The second motion vector to another reference picture is calculated using its initial estimate, the initial estimate of the first motion vector and the refined first motion vector. The search spaces used in template matching in different iterations overlap.

    ON BOUNDARY FORCED PARTITION
    15.
    发明申请
    ON BOUNDARY FORCED PARTITION 有权

    公开(公告)号：US20220217420A1

    公开(公告)日：2022-07-07

    申请号：US17579387

    申请日：2022-01-19

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Han GAO ,  Zhijie ZHAO ,  Semih ESENLIK ,  Anand Meher KOTRA ,  Shan LIU

    IPC: H04N19/96 ,  H04N19/119 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50

    Abstract: An apparatus and method of partitioning of an image or an image slice is described herein. In particular, on an image processing apparatus, the image or image slice is split into an integer number of coding tree units in both vertical and horizontal directions. The remaining boundary portion is then at least partly forced-split so that the deepest partitioning level is a result of binary partitioning, i.e. includes a coding unit which is longer on one side than on the other side. The longer side is parallel or concurrent to the image or image slice boundary.

    RELATION BETWEEN PARTITION CONSTRAINT ELEMENTS
    17.
    发明申请
    RELATION BETWEEN PARTITION CONSTRAINT ELEMENTS 有权

    公开(公告)号：US20210258618A1

    公开(公告)日：2021-08-19

    申请号：US17169175

    申请日：2021-02-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Han GAO ,  Semih ESENLIK ,  Jianle CHEN ,  Anand Meher KOTRA ,  Biao WANG ,  Zhijie ZHAO

    IPC: H04N19/96 ,  H04N19/119 ,  H04N19/132 ,  H04N19/70 ,  H04N19/176

    Abstract: The present disclosure relates generally to video coding and picture partitioning methods. In particular, the disclosure is concerned with relations between partition constraint elements, by setting partitioning rules for different picture partitioning methods. The disclosure provides devices and corresponding methods for generating or processing a bitstream including encoded pictures, particularly for setting and including partition constraint element into the bitstream. One of the devices is configured to determine a minimum luma size of a leaf block resulting from quadtree splitting (MinQtSizeY), determine a maximum luma size of a coding block where partitioning using a binary tree splitting is allowed (MaxBtSizeY) based on the MinQtSizeY, and include information for the determined MinQtSizeY into the bitstream.

    HYBRID VIDEO AND FEATURE CODING AND DECODING
    19.
    发明申请
    HYBRID VIDEO AND FEATURE CODING AND DECODING 有权

    公开(公告)号：US20210203997A1

    公开(公告)日：2021-07-01

    申请号：US17197500

    申请日：2021-03-10

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Anton Igorevich VESELOV ,  Hu CHEN ,  Francesco ROMANO ,  Zhijie ZHAO ,  Marat Ravilevich GILMUTDINOV

    IPC: H04N19/70 ,  H04N19/184 ,  G06K9/46

    Abstract: The present disclosure relates to hybrid video and feature encoding and decoding, with the encoding and decoding of the image feature being performed independently or differentially. The video and feature are encoded and decoded in separate layers, e.g., base layer and enhancement layer. The feature is extracted for a frame of the video, providing a frame-based feature-video association. A feature is extracted from an uncompressed video encoded in an enhancement layer into a feature bitstream. The video is encoded into a video bitstream, with the feature bitstream being embedded into the video bitstream by multiplexing both streams into an output bitstream. The image feature, which may be a differential image feature, is included in a sequence enhancement information SEI message of a frame header information of the video. The output bitstream is provided as input bitstream to a decoder, which de-multiplexes the input bitstream into a video bitstream and feature bitstream, using the SEI message of the frame header. Both bitstreams are decoded in their respective layers, and the image feature is located in the video using the frame-based feature-video association.

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