Color image encoding and decoding method and apparatus using a correlation between chrominance components
    1.
    发明授权
    Color image encoding and decoding method and apparatus using a correlation between chrominance components 有权
    使用色度分量之间的相关性的彩色图像编码和解码方法和装置

    公开(公告)号:US08260069B2

    公开(公告)日:2012-09-04

    申请号:US13107051

    申请日:2011-05-13

    IPC分类号: G06K9/36

    摘要: A color image encoding and decoding method and apparatus use a correlation between chrominance components in order to improve coding efficiency. The color image decoding method includes: transforming chrominance components of a color image in each of two or more inter-prediction modes, calculating costs for the conversion values in each of the two or more inter-prediction modes using a predetermined cost function, selecting one of the two or more inter-prediction modes based on the calculation result, and outputting conversion values of the selected inter-prediction mode; entropy encoding the output conversion values.

    摘要翻译: 彩色图像编码和解码方法和装置使用色度分量之间的相关性来提高编码效率。 彩色图像解码方法包括:使用预定的成本函数,在两个或多个帧间预测模式中的每一个中变换彩色图像的色度分量,计算两个或更多个帧间预测模式中的每个中的转换值的成本,选择一个 基于所述计算结果,输出所述两个或多个帧间预测模式,并输出所选择的帧间预测模式的转换值; 熵编码输出转换值。

    Apparatus and method for predicting coefficients of video block
    2.
    发明申请
    Apparatus and method for predicting coefficients of video block 审中-公开
    用于预测视频块系数的装置和方法

    公开(公告)号:US20060188164A1

    公开(公告)日:2006-08-24

    申请号:US11281583

    申请日:2005-11-18

    IPC分类号: G06K9/36

    摘要: An apparatus and method are provided for predicting coefficients of a video block. The method, includes determining a predicted value of a DC coefficient of a current block using DC coefficients of a plurality of previous blocks that are adjacent to the current block and determining predicted values of a plurality of AC coefficients of the current block using AC coefficients of the plurality of previous blocks, independently of the determination of the predicted value of the DC coefficient of the current block.

    摘要翻译: 提供了一种用于预测视频块的系数的装置和方法。 该方法包括使用与当前块相邻的多个先前块的DC系数来确定当前块的DC系数的预测值,并使用AC系数的AC系数来确定当前块的多个AC系数的预测值 多个先前块,独立于当前块的DC系数的预测值的确定。

    Method and apparatus for predicting frequency transform coefficients in video codec, video encoder and decoder having the apparatus, and encoding and decoding method using the method
    3.
    发明申请
    Method and apparatus for predicting frequency transform coefficients in video codec, video encoder and decoder having the apparatus, and encoding and decoding method using the method 审中-公开
    用于预测具有该装置的视频编解码器,视频编码器和解码器中的频率变换系数的方法和装置,以及使用该方法的编码和解码方法

    公开(公告)号:US20060159354A1

    公开(公告)日:2006-07-20

    申请号:US11273321

    申请日:2005-11-15

    IPC分类号: G06K9/36

    摘要: Provided are a method and apparatus for predicting frequency transform coefficients in a video codec, a video encoder and decoder having the apparatus, and an encoding and decoding method using the method. The method of predicting the frequency transform coefficients in a frequency transform domain includes: calculating a cost between a DC coefficient of a current frequency transformed block that is to be predicted and DC coefficients of frequency transformed blocks adjacent in horizontal, vertical, and diagonal directions with respect to the current frequency transformed block; and selecting an adjacent block with the smallest calculated cost, and predicting DC and AC coefficients of the current frequency transformed block using coefficients of the selected adjacent block. Accordingly, compression efficiency can be improved, and video data can be effectively encoded reflecting the characteristics of various patterns by calculating prediction values of numerous patterns.

    摘要翻译: 提供一种用于预测视频编解码器中的频率变换系数的方法和装置,具有该装置的视频编码器和解码器,以及使用该方法的编码和解码方法。 预测频率变换域中的频率变换系数的方法包括:计算要预测的当前频率变换块的DC系数与在水平,垂直和对角线方向相邻的频率变换块的DC系数之间的成本, 相对于当前频率变换块; 以及选择具有最小计算成本的相邻块,并且使用所选择的相邻块的系数来预测当前频率变换块的DC和AC系数。 因此,可以提高压缩效率,并且可以通过计算许多图案的预测值来有效地编码反映各种图案的特征的视频数据。

    Color image encoding and decoding method and apparatus using a correlation between chrominance components
    4.
    发明授权
    Color image encoding and decoding method and apparatus using a correlation between chrominance components 有权
    使用色度分量之间的相关性的彩色图像编码和解码方法和装置

    公开(公告)号:US07970219B2

    公开(公告)日:2011-06-28

    申请号:US11219735

    申请日:2005-09-07

    IPC分类号: G06K9/36

    摘要: A color image encoding and decoding method and apparatus use a correlation between chrominance components in order to improve coding efficiency. The color image decoding method includes: transforming chrominance components of a color image in each of two or more inter-prediction modes, calculating costs for the conversion values in each of the two or more inter-prediction modes using a predetermined cost function, selecting one of the two or more inter-prediction modes based on the calculation result, and outputting conversion values of the selected inter-prediction mode; entropy encoding the output conversion values.

    摘要翻译: 彩色图像编码和解码方法和装置使用色度分量之间的相关性来提高编码效率。 彩色图像解码方法包括:使用预定的成本函数,在两个或多个帧间预测模式中的每一个中变换彩色图像的色度分量,计算两个或更多个帧间预测模式中的每个中的转换值的成本,选择一个 基于所述计算结果,输出所述两个或多个帧间预测模式,并输出所选择的帧间预测模式的转换值; 熵编码输出转换值。

    Color image encoding and decoding method and apparatus using a correlation between chrominance components
    5.
    发明申请
    Color image encoding and decoding method and apparatus using a correlation between chrominance components 有权
    使用色度分量之间的相关性的彩色图像编码和解码方法和装置

    公开(公告)号:US20060146191A1

    公开(公告)日:2006-07-06

    申请号:US11219735

    申请日:2005-09-07

    IPC分类号: H04N5/08 H04N7/01 H04N5/46

    摘要: A color image encoding and decoding method and apparatus use a correlation between chrominance components in order to improve coding efficiency. The color image decoding method includes: transforming chrominance components of a color image in each of two or more inter-prediction modes, calculating costs for the conversion values in each of the two or more inter-prediction modes using a predetermined cost function, selecting one of the two or more inter-prediction modes based on the calculation result, and outputting conversion values of the selected inter-prediction mode; entropy encoding the output conversion values.

    摘要翻译: 彩色图像编码和解码方法和装置使用色度分量之间的相关性来提高编码效率。 彩色图像解码方法包括:使用预定的成本函数,在两个或多个帧间预测模式中的每一个中变换彩色图像的色度分量,计算两个或更多个帧间预测模式中的每个中的转换值的成本,选择一个 基于所述计算结果,输出所述两个或多个帧间预测模式,并输出所选择的帧间预测模式的转换值; 熵编码输出转换值。

    Intraprediction encoding/decoding method and apparatus
    7.
    发明授权
    Intraprediction encoding/decoding method and apparatus 有权
    预测编码/解码方法和装置

    公开(公告)号:US08005142B2

    公开(公告)日:2011-08-23

    申请号:US11478641

    申请日:2006-07-03

    IPC分类号: H04N7/12 G06K9/46

    摘要: An intraprediction encoding/decoding method and apparatus are provided. The intraprediction encoding method includes forming a flipped reference block by flipping pixels of a reference block used for intraprediction symmetrically with respect to a straight line of a predetermined direction passing through the center of the reference block, and performing intraprediction using the flipped reference block.

    摘要翻译: 提供了一种非预测性编码/解码方法和装置。 印前编码方法包括通过相对于通过参考块的中心的预定方向的直线对称地翻转参考块的像素来形成翻转的参考块,并且使用翻转的参考块进行预测。

    Apparatus and method for image encoding and decoding
    9.
    发明申请
    Apparatus and method for image encoding and decoding 审中-公开
    图像编码和解码的装置和方法

    公开(公告)号:US20060268982A1

    公开(公告)日:2006-11-30

    申请号:US11288293

    申请日:2005-11-29

    摘要: Provided is an apparatus and method for video encoding and decoding, in which video encoding and decoding are performed using blocks of a predetermined shape that increases the number of adjacent blocks that can be used for intraprediction. A video encoder includes a picture division unit and an encoding unit. The picture division unit divides a picture to be encoded into blocks of the predetermined shape that allows at least three adjacent blocks to be used in intraprediction. The encoding unit performs encoding in a predetermined scanning order that allows at least three adjacent blocks to be used in intraprediction of the divided blocks.

    摘要翻译: 提供了一种用于视频编码和解码的装置和方法,其中使用增加可用于帧内预测的相邻块的数量的预定形状的块来执行视频编码和解码。 视频编码器包括图像分割单元和编码单元。 图像分割单元将要编码的图像划分成允许至少三个相邻块在预测中使用的预定形状的块。 编码单元以预定的扫描顺序执行编码,其允许在分割块的预测中使用至少三个相邻块。