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    METHOD AND DEVICE FOR ENCODING/DECODING MOTION VECTOR
    37.
    发明申请
    METHOD AND DEVICE FOR ENCODING/DECODING MOTION VECTOR 有权

    公开(公告)号：US20230081809A1

    公开(公告)日：2023-03-16

    申请号：US17972013

    申请日：2022-10-24

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jin-Young LEE ,  Seung-soo JEONG ,  Jung-hye MIN ,  Sun-il LEE

    IPC: H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/182 ,  H04N19/51

    Abstract: A motion vector encoding apparatus includes: a predictor configured to obtain motion vector predictor candidates of a plurality of predetermined motion vector resolutions by using a spatial candidate block and a temporal candidate block of a current block, and to determine motion vector predictor of the current block, a motion vector of the current block, and a motion vector resolution of the current block by using the motion vector predictor candidates; and an encoder configured to encode information representing the motion vector predictor of the current block, a residual motion vector between the motion vector of the current block and the motion vector predictor of the current block, and information representing the motion vector resolution of the current block, wherein the plurality of predetermined motion vector resolutions include a resolution of a pixel unit that is greater than a resolution of one-pel unit.

    METHOD FOR ENCODING/DECODING IMAGE AND DEVICE THEREFOR
    38.
    发明申请
    METHOD FOR ENCODING/DECODING IMAGE AND DEVICE THEREFOR 审中-公开

    公开(公告)号：US20200260079A1

    公开(公告)日：2020-08-13

    申请号：US15776353

    申请日：2016-11-23

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jung-hye MIN ,  Chan-yul KIM ,  Sun-il LEE

    IPC: H04N19/122 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176

    Abstract: Provided are an image decoding method, according to an embodiment, capable of obtaining a residual signal of an image from a bitstream, changing a ratio of sizes of adjacent first blocks among a plurality of first blocks including the residual signal based on block ratio information obtained from the bitstream, and decoding the residual signal based on the changed ratio, wherein the block ratio information indicates one of predetermined ratios to which the ratio of the sizes of the adjacent first blocks is changeable; and an image decoding device capable of performing the image decoding method. Provided are also an image encoding method, according to an embodiment, capable of being performed in an opposite or similar way to the image decoding method; and an image encoding device capable of performing the image encoding method.

    VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE USING HIGH-PRECISION SKIP ENCODING AND METHOD THEREOF
    39.
    发明申请
    VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE USING HIGH-PRECISION SKIP ENCODING AND METHOD THEREOF 审中-公开

    公开(公告)号：US20200169747A1

    公开(公告)日：2020-05-28

    申请号：US16776053

    申请日：2020-01-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Seung-soo JEONG ,  Min-woo PARK ,  Jin-young LEE ,  Sun-il LEE

    IPC: 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
    40.
    发明申请
    VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE USING HIGH-PRECISION SKIP ENCODING AND METHOD THEREOF 审中-公开

    公开(公告)号：US20200169746A1

    公开(公告)日：2020-05-28

    申请号：US16775974

    申请日：2020-01-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Seung-soo JEONG ,  Min-woo PARK ,  Jin-young LEE ,  Sun-il LEE

    IPC: 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.

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