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。

    Method and apparatus for image coding and decoding with cross-reference mode
    7.
    发明授权
    Method and apparatus for image coding and decoding with cross-reference mode 失效
    用于图像编码和交叉参考模式解码的方法和装置

    公开(公告)号:US08144771B2

    公开(公告)日:2012-03-27

    申请号:US11437648

    申请日:2006-05-22

    IPC分类号: H04N7/12

    摘要: An image compression method and apparatus, in which coding efficiency is improved by coding multiple pictures through cross-reference between the pictures, and an image decompression method and apparatus. The image compression method includes dividing each of the pictures into predetermined slices, determining a prediction mode having higher efficiency and a coding order for each of corresponding slices of the pictures by performing prediction on the corresponding slices, and coding each of the slices in the determined prediction mode according to the determined order of coding. The pictures are coded through cross-reference between them.

    摘要翻译: 一种图像压缩方法和装置,其中通过在图像之间的交叉参考对多个图像进行编码来提高编码效率,并且图像解压缩方法和装置。 图像压缩方法包括将每个图像划分成预定的片段,通过对相应的片段进行预测来确定具有较高效率的每个相应片段的编码顺序的预测模式,以及对所确定的片段中的每个片段进行编码 预测模式根据确定的编码顺序。 图片通过它们之间的交叉引用进行编码。

    Method and apparatus for video encoding/decoding
    8.
    发明申请
    Method and apparatus for video encoding/decoding 审中-公开
    视频编码/解码方法和装置

    公开(公告)号:US20070098078A1

    公开(公告)日:2007-05-03

    申请号:US11591618

    申请日:2006-11-02

    IPC分类号: H04N11/04 H04N7/12

    摘要: A method and apparatus for video encoding/decoding provides a macroblock used as a unit of video division and encoding formed in various sizes, positions, and shapes to improve compression efficiency according to video characteristics. The video encoding method, divides a video into macroblocks while moving macroblocks in each row and/or each column by a predetermined-size pixel and each of the macroblocks is encoded. A video may also be divided into macroblocks at a position spaced apart from a corner of the video by a predetermined offset and each of the macroblocks is encoded. Encoding may also be performed on each sub-block and sub-blocks having the same prediction mode may be grouped into a macroblock having another form.

    摘要翻译: 用于视频编码/解码的方法和装置提供了用作以各种尺寸,位置和形状形成的视频分割和编码的单位的宏块,以根据视频特性提高压缩效率。 视频编码方法将视频分割为宏块,同时将每行和/或每列中的宏块移动预定大小的像素,并对每个宏块进行编码。 视频还可以在与视频的角距离预定偏移的位置处被划分为宏块,并且对每个宏块进行编码。 也可以对每个子块执行编码,并且具有相同预测模式的子块可以被分组成具有另一形式的宏块。

    Image encoding and decoding method and apparatus, and computer-readable recording medium storing program for executing the method
    10.
    发明申请
    Image encoding and decoding method and apparatus, and computer-readable recording medium storing program for executing the method 审中-公开
    图像编码和解码方法和装置,以及用于执行该方法的计算机可读记录介质存储程序

    公开(公告)号:US20060278725A1

    公开(公告)日:2006-12-14

    申请号:US11365664

    申请日:2006-03-02

    IPC分类号: G06K9/48

    CPC分类号: H04N1/41

    摘要: A method of dividing an input image into a plurality of one-dimensional images, each including a plurality of pixels having similar characteristics, and encoding the input image in units of one-dimensional images to enhance encoding efficiency. The image encoding method includes: dividing an input image into a plurality of one-dimensional codes, each including at least one pixel selected according to pixel characteristics; creating a plurality of one-dimensional code information, each comprising information regarding the at least one pixel included in each of the one-dimensional codes; and encoding the one-dimensional code information in units of one-dimensional codes.

    摘要翻译: 一种将输入图像分割成多个一维图像的方法,每个图像包括具有相似特征的多个像素,并且以一维图像为单位对输入图像进行编码以提高编码效率。 图像编码方法包括:将输入图像划分为多个一维码,每个一维码包括根据像素特性选择的至少一个像素; 创建多个一维代码信息,每个代码信息包括关于每个所述一维代码中包括的至少一个像素的信息; 并以一维码为单位对一维码信息进行编码。