Method and an apparatus for processing a video signal

    公开(公告)号:US10455248B2

    公开(公告)日:2019-10-22

    申请号:US12574283

    申请日:2009-10-06

    摘要: The present invention relates to a video signal decoding method for adding an intra prediction mode as a sub-macroblock type to prediction of a macroblock in coding a video signal. The present invention includes obtaining a macroblock type, obtaining a sub-macroblock type when a macroblock includes a plurality of coded sub-macroblocks according the macroblock type, obtaining flag information indicating a DC (discrete cosine) transform size, determining the DC transform size of the coded sub-macroblock based on the flag information, when the sub-macroblock is intra prediction coded based on the sub-macroblock type, determining a prediction size of the intra prediction coded sub-macroblock based on the determined DC transform size, obtaining prediction direction information from a block adjacent to the sub-macroblock based on the prediction size of the sub-macroblock, and obtaining a prediction value of the sub-macroblock based on the prediction direction information. Accordingly, the present invention is able to raise coding efficiency of video signal by adding an intra prediction mode as a sub-macroblock type in predicting a macroblock.

    Reference picture list changing method of multi-view video
    3.
    发明授权
    Reference picture list changing method of multi-view video 有权
    多视图视频参考图片列表更改方法

    公开(公告)号:US08933989B2

    公开(公告)日:2015-01-13

    申请号:US13265657

    申请日:2010-03-09

    摘要: Disclosed is a method of changing a reference picture list. The present invention includes parsing a profile identifier and a slice type from a multiview video bitstream, obtaining inter-view reference information based on the profile identifier, initializing a reference picture list using the inter-view reference information, and modifying the reference picture list in consideration of the slice type. Accordingly, the present invention defines profile information indicating a stereo video, thereby coding a multiview video signal more efficiently.

    摘要翻译: 公开了一种改变参考图片列表的方法。 本发明包括从多视点视频比特流解析简档标识符和切片类型,基于简档标识符获取视图间参考信息,使用视频间参考信息初始化参考图片列表,并修改参考图片列表 考虑切片类型。 因此,本发明定义了表示立体视频的简档信息,从而更有效地对多视点视频信号进行编码。

    Method and apparatus for processing video signals
    4.
    发明授权
    Method and apparatus for processing video signals 有权
    视频信号处理方法和装置

    公开(公告)号:US08908760B2

    公开(公告)日:2014-12-09

    申请号:US13262409

    申请日:2010-03-30

    摘要: The present invention relates to a method and apparatus for processing video signals, the method comprising: decoding a current frame of a video signal in block units to generate a restored frame, and acquiring first and second flags to acquire a filter coefficient which is adaptively determined from the video signal for each slice on the basis of flag information, or performing deblocking filtering with a predetermined filter coefficient. The present invention relates to a video signal processing method which includes an inter-frame prediction method that determines a motion vector, and a method for performing inter-frame prediction for a residual image. The method for processing video signals can increase the compression encoding efficiency by performing accurate motion prediction and residual image prediction, and can improve the quality of a restored image by removing distortion and performing a filtering for restoring an image that is close to the original image.

    摘要翻译: 本发明涉及一种处理视频信号的方法和装置,该方法包括:以块为单位对视频信号的当前帧进行解码以产生恢复的帧,并且获取第一和第二标志以获取自适应确定的滤波器系数 基于标志信息从每个切片的视频信号,或者执行具有预定滤波器系数的去块滤波。 视频信号处理方法技术领域本发明涉及一种视频信号处理方法,其包括确定运动矢量的帧间预测方法以及用于对残留图像执行帧间预测的方法。 用于处理视频信号的方法可以通过执行精确的运动预测和残差图像预测来提高压缩编码效率,并且可以通过消除失真并执行用于恢复靠近原始图像的图像的滤波来提高恢复图像的质量。

    Method and apparatus for processing video signal
    5.
    发明授权
    Method and apparatus for processing video signal 有权
    视频信号处理方法及装置

    公开(公告)号:US08760495B2

    公开(公告)日:2014-06-24

    申请号:US13129822

    申请日:2009-11-18

    摘要: In a method for processing video signals acquired from multiple cameras, the present invention provides a method for processing video signals including receiving a multiview video coded bit stream including color pictures and depth pictures, wherein the depth picture indicates a group of digitalized information on a distance between a base camera and an object; acquiring data type identification information from the multiview video coded bit stream, wherein the data type identification information indicates whether or not depth-coded data are included in the multiview video coded bit stream; acquiring reference information between views of the depth picture based upon the data type identification information, wherein the reference information between views of the depth picture includes a number of depth-view reference pictures, and a view identification number of the depth-view reference picture; acquiring an estimation value of the depth picture by using the reference information between views of the depth picture; recovering the depth picture by using the estimation value of the depth picture; and acquiring a 3-dimensional image by using the recovered depth picture.

    摘要翻译: 在一种用于处理从多个摄像机获得的视频信号的处理方法中,本发明提供了一种处理视频信号的方法,包括接收包括彩色图像和深度图像的多视角视频编码比特流,其中深度图像指示一组距离上的数字化信息 在基本相机和对象之间; 从多视点视频编码比特流获取数据类型识别信息,其中数据类型识别信息指示深度编码数据是否包括在多视图视频编码比特流中; 基于所述数据类型识别信息,获取所述深度图像的视图之间的参考信息,其中,所述深度图像的视图之间的参考信息包括多个深度参考图像和所述深度参考图像的视图识别号码; 通过使用深度图像的视图之间的参考信息来获取深度图像的估计值; 通过使用深度图像的估计值来恢复深度图像; 并通过使用恢复的深度图像来获取三维图像。

    Method of decoding a bi-predictive image block
    6.
    发明授权
    Method of decoding a bi-predictive image block 有权
    双向预测图像块的解码方法

    公开(公告)号:US08743960B2

    公开(公告)日:2014-06-03

    申请号:US11889259

    申请日:2007-08-10

    申请人: Byeong Moon Jeon

    发明人: Byeong Moon Jeon

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: In one embodiment, the method includes obtaining reference picture information, and determining a first reference picture of the bi-predictive image block. The first reference picture has a co-located image block with respect to the bi-predictive image block. A second reference picture is determined based on a motion vector of the co-located image block. At least one motion vector of the bi-predictive image block is obtained according to the motion vector of the co-located image block and the reference picture type of at least one of the first reference picture and the second reference picture. The reference picture information indicates reference picture types of reference pictures, and the reference picture type being based on temporal distance between a current picture including the bi-predictive image block and the reference picture. The bi-predictive image block is decoded by motion-estimating the bi-predictive image block using the motion vector of the bi-predictive image block.

    摘要翻译: 在一个实施例中,该方法包括获得参考图像信息,以及确定双预测图像块的第一参考图像。 第一参考图片相对于双预测图像块具有共同定位的图像块。 基于同位置图像块的运动矢量来确定第二参考图像。 根据同位置图像块的运动矢量和第一参考图像和第二参考图像中的至少一个的参考图像类型,获得双预测图像块的至少一个运动矢量。 参考图像信息指示参考图像的参考图像类型,并且参考图像类型基于包括双重预测图像块的当前图像与参考图像之间的时间距离。 通过使用双预测图像块的运动矢量的运动估计双预测图像块来对双预测图像块进行解码。