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    METHOD OF PREDICTING A MOTION VECTOR FOR A CURRENT BLOCK IN A CURRENT PICTURE
    74.
    发明申请
    METHOD OF PREDICTING A MOTION VECTOR FOR A CURRENT BLOCK IN A CURRENT PICTURE 有权

    公开(公告)号：US20170111637A1

    公开(公告)日：2017-04-20

    申请号：US15395288

    申请日：2016-12-30

    Applicant: LG ELECTRONICS INC.

    Inventor： Byeong Moon JEON ,  Yoon Seong SOH

    IPC: H04N19/105 ,  H04N19/139 ,  H04N19/573 ,  H04N19/577 ,  H04N19/52 ,  H04N19/176

    Abstract: In one embodiment, the apparatus includes a decoder. The decoder is configured to obtain first and second motion vectors of a block other than the current block. The other block neighbors the current block at one of a left, top and top right position. The decoder is configured to determine first and second motion vectors of the current block using the first and second motion vectors of the other block such that the first motion vector of the current block has a same direction as the first motion vector of the other block and the second motion vector of the current block has a same direction as the second motion vector of the other block.

    METHOD OF PREDICTING A MOTION VECTOR FOR A CURRENT BLOCK IN A CURRENT PICTURE
    79.
    发明申请
    METHOD OF PREDICTING A MOTION VECTOR FOR A CURRENT BLOCK IN A CURRENT PICTURE 有权
    在当前图像中预测电流块的运动矢量的方法

    公开(公告)号：US20150030077A1

    公开(公告)日：2015-01-29

    申请号：US14514927

    申请日：2014-10-15

    Applicant: LG Electronics Inc.

    Inventor： Byeong Moon JEON ,  Yoon Seong SOH

    IPC: H04N19/51 ,  H04N19/44

    CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/563 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61

    Abstract: A method of predicting a forward motion vector for a current block in a current picture includes obtaining, by the moving picture decoding device, at least three motion vectors for at least three blocks other than the current block based on a direction of a reference picture, wherein the direction of the reference picture is based on a display order of the reference picture and a display order of the current picture, and the at least three blocks are not in an intra mode, predicting, by the moving picture decoding device, the forward motion vector for the current block by using a median operation of the at least three motion vectors and decoding the current block in the current picture using the predicted forward motion vector for the current block.

    Abstract translation: 一种在当前图像中预测当前块的向前运动矢量的方法包括：基于参考图像的方向，通过运动图像解码装置获取除当前块之外的至少三个块的至少三个运动矢量， 其中，所述参考图像的方向是基于所述参考图像的显示顺序和所述当前图像的显示顺序，并且所述至少三个块不处于帧内模式，由所述运动图像解码装置预测所述前向 通过使用至少三个运动矢量的中值运算并且使用当前块的预测的向前运动矢量对当前图像中的当前块进行解码来对当前块的运动矢量进行解码。

    METHOD OF DETERMINING MOTION VECTORS FOR A BI-PREDICTIVE IMAGE BLOCK
    80.
    发明申请
    METHOD OF DETERMINING MOTION VECTORS FOR A BI-PREDICTIVE IMAGE BLOCK 有权
    确定用于BI预测图像块的运动矢量的方法

    公开(公告)号：US20140177719A1

    公开(公告)日：2014-06-26

    申请号：US14107309

    申请日：2013-12-16

    Applicant: LG Electronics Inc.

    Inventor： Byeong Moon JEON

    IPC: H04N19/527 ,  H04N19/51

    CPC classification number: H04N19/577 ,  H04N5/145 ,  H04N5/147 ,  H04N19/00054 ,  H04N19/0026 ,  H04N19/00266 ,  H04N19/00278 ,  H04N19/00684 ,  H04N19/103 ,  H04N19/105 ,  H04N19/114 ,  H04N19/117 ,  H04N19/139 ,  H04N19/142 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/527 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/583 ,  H04N19/61 ,  H04N19/87

    Abstract: In one embodiment, the method includes determining, first and second reference pictures; obtaining a type of the first reference picture; and determining motion vectors of the bi-predictive image block based on the type of the first reference picture. The type is one of a long-term type and a short-term type, and characterizes a temporal distance of the first reference picture with respect to the bi-predictive block. The motion vectors of the bi-predictive image block are determined according to a first set of expressions if the first reference picture is of the short-term type, and according to a second set of expressions if the first reference picture is of the long-term type. The second set of expressions is different than the first set of expressions. The method further includes decoding, by the moving picture coding system, the bi-predictive image block based on the determined motion vectors.

    Abstract translation: 在一个实施例中，该方法包括确定第一和第二参考图片; 获得第一参考图片的类型; 以及基于所述第一参考图片的类型来确定所述双预测图像块的运动矢量。 该类型是长期类型和短期类型之一，并且表征第一参考图片相对于双预测块的时间距离。 如果第一参考图片是短期类型，则根据第一组表达式来确定双预测图像块的运动矢量，并且如果第一参考图片是长期类型，则根据第二组表达式， 长期类型。 第二组表达式与第一组表达式不同。 该方法还包括基于所确定的运动矢量，通过运动图像编码系统对双预测图像块进行解码。

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