Method and apparatus for encoding video by motion prediction using arbitrary partition, and method and apparatus for decoding video by motion prediction using arbitrary partition
    53.
    发明授权
    Method and apparatus for encoding video by motion prediction using arbitrary partition, and method and apparatus for decoding video by motion prediction using arbitrary partition 有权
    使用任意分区通过运动预测编码视频的方法和装置,以及通过使用任意分区的运动预测对视频进行解码的方法和装置

    公开(公告)号:US08780993B2

    公开(公告)日:2014-07-15

    申请号:US13897560

    申请日:2013-05-20

    Abstract: An encoding method including: receiving and parsing a bitstream of an encoded image, determining coding units having a hierarchical structure being data units in which the encoded image is decoded, and sub-units for predicting the coding units, by using information that indicates division shapes of the coding units and information about prediction units of the coding units, parsed from the received bitstream, wherein the sub-units comprise partitions obtained by splitting at least one of a height and a width of the coding units according to at least one of a symmetric ratio and an asymmetric ratio, and reconstructing the image by performing decoding including motion compensation using the partitions for the coding units, using the encoding information parsed from received bitstream, wherein the coding units having the hierarchical structure comprise coding units of coded depths split hierarchically according to the coded depths and independently from neighboring coding units.

    Abstract translation: 一种编码方法,包括:通过使用指示划分形状的信息,接收并解析编码图像的比特流,确定具有分层结构的编码单元,其中编码图像被解码的数据单元,以及用于预测编码单元的子单元 的编码单元的信息和关于从所接收的比特流解码的编码单元的预测单元的信息,其中,所述子单元包括通过根据以下中的至少一个来分割所述编码单元的高度和宽度中的至少一个而获得的分区: 对称比和不对称比,并且使用从接收的比特流解析的编码信息,通过使用编码单元的分区执行包括运动补偿的解码来重构图像,其中具有分层结构的编码单元包括分层编码的编码深度的编码单位 根据编码深度,并且独立于相邻编码单元。

    Method and device for encoding/decoding motion vector

    公开(公告)号:US11818387B2

    公开(公告)日:2023-11-14

    申请号:US17971926

    申请日:2022-10-24

    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.

    Video encoding device and video decoding device using high-precision skip encoding and method thereof

    公开(公告)号:US11509926B2

    公开(公告)日:2022-11-22

    申请号:US17218808

    申请日:2021-03-31

    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

    公开(公告)号:US20210218984A1

    公开(公告)日:2021-07-15

    申请号:US17218574

    申请日:2021-03-31

    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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