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    Lossless image encoding/decoding method and apparatus using inter-color plane prediction
    1.
    发明申请
    Lossless image encoding/decoding method and apparatus using inter-color plane prediction 有权
    无损图像编码/解码方法和使用色间平面预测的装置

    公开(公告)号：US20050013370A1

    公开(公告)日：2005-01-20

    申请号：US10892248

    申请日：2004-07-16

    申请人： Woo-shik Kim ,  Dae-sung Cho ,  Hyun Kim

    发明人： Woo-shik Kim ,  Dae-sung Cho ,  Hyun Kim

    IPC分类号： H04N11/04 ,  H03M7/36 ,  H04N19/105 ,  H04N19/11 ,  H04N19/136 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/90 ,  H04N19/91 ,  H04N7/12

    CPC分类号： H04N11/042 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51 ,  H04N19/593

    摘要： A lossless image encoding/decoding method and apparatus. The lossless color image encoding apparatus includes a motion prediction image generator estimating a motion between a previous image and a current image and outputting a corresponding prediction image, a residue generator generating a temporal residue corresponding to a difference between a prediction image generated by the motion prediction image generator and the corresponding block of the current image with respect to different components of the color image, a prediction residue generator generating prediction residues by defining a linear-transformed value of one residue among the different components of the color image output from the residue generator as a predictor and using differences between each of the residues of the other components and the predictor, and an entropy encoder receiving the residue forming the predictor from the residue generator and the prediction residues from the prediction residue generator and generating a bitstream. Encoding methods, decoding apparatuses, and decoding methods can be implemented similarly.

    摘要翻译： 一种无损图像编码/解码方法和装置。 无损彩色图像编码装置包括运动预测图像生成器，其估计先前图像和当前图像之间的运动并输出相应的预测图像;残差生成器，生成与通过运动预测生成的预测图像之间的差相对应的时间残差 图像生成器和相对于彩色图像的不同分量的当前图像的对应块;预测残差生成器，其通过在从残差生成器输出的彩色图像的不同分量中定义一个残差的线性变换值来生成预测残差 作为预测器，并且使用其他分量和预测器的每个残差之间的差异，以及熵编码器从残差发生器接收形成预测器的残差和来自预测残差发生器的预测残差并产生比特流。 可以类似地实现编码方法，解码装置和解码方法。

    Image encoding and decoding apparatus and method
    6.
    发明申请
    Image encoding and decoding apparatus and method 有权

    公开(公告)号：US20110235710A1

    公开(公告)日：2011-09-29

    申请号：US13067450

    申请日：2011-06-01

    申请人： Hyun Mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

    发明人： Hyun Mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

    IPC分类号： H04N7/32 ,  G06K9/40

    CPC分类号： H04N19/44 ,  H04N19/105 ,  H04N19/107 ,  H04N19/136 ,  H04N19/142 ,  H04N19/162 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/46 ,  H04N19/50 ,  H04N19/61

    摘要： An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.

    Color transformation method and apparatus
    9.
    发明申请
    Color transformation method and apparatus 失效
    颜色变换方法和装置

    公开(公告)号：US20050147295A1

    公开(公告)日：2005-07-07

    申请号：US11002431

    申请日：2004-12-03

    申请人： Hyun-mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

    发明人： Hyun-mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

    IPC分类号： H04N9/64 ,  G06T9/00 ,  G06T11/00 ,  G09G5/02 ,  H04N1/46 ,  H04N1/60 ,  H04N1/64 ,  H04N7/26 ,  H04N7/30

    CPC分类号： H04N19/00 ,  H04N1/646 ,  H04N19/60 ,  H04N19/63 ,  H04N19/85

    摘要： A color transformation method of transforming a first color component set representing a first color space to a second color component set representing a second color space is provided. The method comprising: reading the first color component set from a predetermined memory; transforming the read first color component set to the second color component set using a predetermined transformation function; and storing the second color component set to correspond to the first color component set, wherein the transformation function is defined by: defining a first transformation matrix used for acquiring dominant components of the first color component set and multiplying each of the elements of the determined first transformation matrix by a predetermined integer k. The method further comprises d) inverse-transforming the second color component set to the first color component set, the inverse-transforming comprising: d1) reading the second color component set from the predetermined memory; d2) inverse-transforming the read second color component set to the first color component set by using an inverse transformation function; and d3) storing the transformed second color component set to correspond to the first color component set, wherein the inverse transformation function is defined by: defining an inverse matrix of the first transformation matrix and multiplying each of the elements of the inverse matrix by a reciprocal of the integer k. The color transformation method can reduce coding errors.

    摘要翻译： 提供了将表示第一颜色空间的第一颜色分量集合变换为表示第二颜色空间的第二颜色分量集合的颜色变换方法。 该方法包括：从预定存储器读取第一颜色分量集合; 使用预定的变换函数将读取的第一颜色分量集合变换为第二颜色分量集合; 以及存储与所述第一颜色分量组相对应的所述第二颜色分量集合，其中所述变换函数通过以下定义：定义用于获取所述第一颜色分量组的主成分的第一变换矩阵，并将所确定的第一 变换矩阵以预定的整数k表示。 该方法还包括：d）将第二颜色分量集合反变换为第一颜色分量组，逆变换包括：d1）从预定存储器读取第二颜色分量集合; d2）通过使用逆变换函数将读取的第二颜色分量集合反变换为第一颜色分量集合; 和d3）存储所述经变换的第二颜色分量集合以对应于所述第一颜色分量集合，其中所述逆变换函数通过以下定义：定义所述第一变换矩阵的逆矩阵并将所述逆矩阵的每个元素乘以倒数 的整数k。 颜色转换方法可以减少编码错误。