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    Method and apparatus for encoding and decoding motion vector
    77.
    发明授权
    Method and apparatus for encoding and decoding motion vector 有权
    用于编码和解码运动矢量的方法和装置

    公开(公告)号：US08630351B2

    公开(公告)日：2014-01-14

    申请号：US13628682

    申请日：2012-09-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Tammy Lee ,  Woo-jin Han ,  Jung-hye Min

    IPC: H04N7/12

    CPC classification number: H04N19/33 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

    Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a motion vector of the current block and the motion vector predictor of the current block.

    Abstract translation: 提供了用于对运动矢量进行编码和解码的方法和装置。 编码运动矢量的方法包括：从表示至少一个运动矢量预测器的运动矢量预测器的信息被编码的第一模式中选择模式，以及第二模式，其中基于 包括在与当前块相邻的先前编码区域中的像素被编码; 根据所选择的模式确定当前块的运动矢量预测器，并且编码关于当前块的运动矢量预测器的信息; 以及对当前块的运动矢量和当前块的运动矢量预测器之间的差矢量进行编码。

    Method and device for encoding/decoding motion vector
    79.
    发明授权
    Method and device for encoding/decoding motion vector 有权

    公开(公告)号：US11818389B2

    公开(公告)日：2023-11-14

    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: H04N11/02 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/182 ,  H04N19/51

    CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/70

    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.

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