METHOD AND DEVICE FOR ENCODING OR DECODING LUMA BLOCK AND CHROMA BLOCK

    公开(公告)号:US20190260992A1

    公开(公告)日:2019-08-22

    申请号:US16340323

    申请日:2016-10-10

    Abstract: Provided are a method and device for encoding or decoding a luma block and a chroma block. An image decoding method and device according to an embodiment include an image decoding method including obtaining, from a bitstream, partitioning information for a luma block; partitioning a current luma block in at least one direction, thus partitioning the current luma block into at least two luma blocks, when the partitioning information indicates that the current luma block is to be partitioned to a next level, and obtaining, from the bitstream, merge information about a current chroma block corresponding to the current luma block; performing decoding on the current luma block when the partitioning information indicates that the current luma block is not to be partitioned; partitioning the current chroma block into at least two chroma blocks corresponding to the at least two luma blocks when the partitioning information indicates that the current luma block is to be partitioned to the next level; and performing decoding on the current chroma block when the partitioning information indicates that the current luma block is not to be partitioned or the merge information indicates that the partitioning of the current chroma block is to be discontinued.

    METHOD AND DEVICE FOR ENCODING OR DECODING ENCODING UNIT OF PICTURE OUTLINE

    公开(公告)号:US20190246106A1

    公开(公告)日:2019-08-08

    申请号:US16339270

    申请日:2016-10-10

    Abstract: Provided are a method and apparatus for encoding or decoding a coding unit on an outline of a picture. An image decoding method and apparatus according to an embodiment determine whether a current coding unit extends across an outline of a picture, by comparing a location of the current coding unit in the picture to at least one of a width and a height of the picture, split the current coding unit in at least one direction into a plurality of coding units based on a shape of the current coding unit upon determining that the current coding unit extends across the outline of the picture, obtain block shape information and split type information of the current coding unit from a bitstream and split the current coding unit into a plurality of coding units based on the block shape information and the split type information upon determining that the current coding unit does not extend across the outline of the picture, and decode a coding unit that is no longer split among the plurality of coding units.

    METHOD AND DEVICE FOR VIDEO DECODING AND METHOD AND DEVICE FOR VIDEO ENCODING

    公开(公告)号:US20180343469A1

    公开(公告)日:2018-11-29

    申请号:US15777512

    申请日:2016-11-24

    Abstract: Provided is a video decoding method including obtaining, from a bitstream, information about a prediction mode of a current block; when the prediction mode of the current block is an intra mode, obtaining information about an intra prediction mode of the current block; obtaining a predicted sample value of the current block by using at least one sample that is from among samples included in an adjacent reference region of a plurality of lines and is located, from the current block, in an intra prediction direction indicated by an intra prediction mode. The adjacent reference region of the plurality of lines may include a plurality of lines that are in a vertical direction and located at a left side of the current block, or a plurality of lines that are in a horizontal direction and located at an upper side of the current block.

    METHOD AND APPARATUS FOR INTER-LAYER ENCODING AND METHOD AND APPARATUS FOR INTER-LAYER DECODING VIDEO USING RESIDUAL PREDICTION
    17.
    发明申请
    METHOD AND APPARATUS FOR INTER-LAYER ENCODING AND METHOD AND APPARATUS FOR INTER-LAYER DECODING VIDEO USING RESIDUAL PREDICTION 审中-公开
    用于层间编码的方法和装置以及使用残差预测的层间解码视频的方法和装置

    公开(公告)号:US20160173891A1

    公开(公告)日:2016-06-16

    申请号:US14904538

    申请日:2014-07-14

    Abstract: Provided are a method and apparatus for inter-layer encoding and a method and apparatus for inter-layer decoding video using residual prediction. The inter-layer video decoding method includes: obtaining a decoded first layer image from a first layer bitstream; determining, based on residual prediction information obtained from a second layer bitstream, whether to perform residual prediction performed on a second layer block by referring to a first layer block corresponding to the second layer block within the first layer image; in response to determining not to perform the residual prediction, obtaining luminance compensation information from the second layer bitstream and determining whether to perform luminance compensation based on the luminance compensation information; and in response to determining to perform the luminance compensation, performing the luminance compensation on the second layer block.

    Abstract translation: 提供了一种用于层间编码的方法和装置以及用于使用残差预测进行层间解码视频的方法和装置。 层间视频解码方法包括:从第一层比特流获得解码的第一层图像; 基于从第二层比特流获得的残留预测信息,通过参照与第一层图像内的第二层块相对应的第一层块来确定是否对第二层块执行残差预测; 响应于确定不执行所述残差预测,从所述第二层比特流获得亮度补偿信息,并基于所述亮度补偿信息确定是否执行亮度补偿; 并且响应于确定执行亮度补偿,对第二层块执行亮度补偿。

    METHOD AND APPARATUS FOR INTER-LAYER DECODING VIDEO USING DEPTH-BASED DISPARITY VECTOR, AND METHOD AND APPARATUS FOR INTER-LAYER ENCODING VIDEO USING DEPTH-BASED DISPARITY VECTOR
    18.
    发明申请
    METHOD AND APPARATUS FOR INTER-LAYER DECODING VIDEO USING DEPTH-BASED DISPARITY VECTOR, AND METHOD AND APPARATUS FOR INTER-LAYER ENCODING VIDEO USING DEPTH-BASED DISPARITY VECTOR 审中-公开
    用于使用基于深度差异矢量的层间解码视频的方法和装置,以及使用基于深度差异矢量的层间编码视频的方法和装置

    公开(公告)号:US20160165241A1

    公开(公告)日:2016-06-09

    申请号:US14904600

    申请日:2014-07-14

    Abstract: Provided is an inter-layer decoding method including reconstructing a color image and a depth image of a first layer, based on encoding information about the color image and the depth image of the first layer, wherein the encoding information is obtained from a bitstream; determining, from the depth image of the first layer, a depth image block of the first layer which corresponds to a current block of a second layer image to be decoded; determining whether an area included in the determined depth image block of the first layer deviates from a boundary of the depth image of the first layer; when the area included in the depth image block deviates from the boundary, determining a depth value of the area deviating from the boundary of the depth image; determining a disparity vector indicating a corresponding block of the first layer image with respect to the current block, based on the determined depth value of the area deviating from the boundary of the depth image; and reconstructing the current block by using the disparity vector.

    Abstract translation: 提供了一种层间解码方法,包括基于关于第一层的彩色图像和深度图像的编码信息来重建第一层的彩色图像和深度图像,其中从比特流获得编码信息; 从第一层的深度图像确定与要解码的第二层图像的当前块相对应的第一层的深度图像块; 确定所述第一层的所确定的深度图像块中包括的区域是否偏离所述第一层的深度图像的边界; 当深度图像块中包括的区域偏离边界时,确定偏离深度图像的边界的区域的深度值; 基于所确定的偏离所述深度图像的边界的区域的深度值,确定指示相对于所述当前块的所述第一层图像的对应块的视差向量; 并通过使用视差矢量重建当前块。

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