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    Apparatus and method for variable length coding
    1.
    发明申请
    Apparatus and method for variable length coding 失效
    用于可变长度编码的装置和方法

    公开(公告)号：US20050035888A1

    公开(公告)日：2005-02-17

    申请号：US10901302

    申请日：2004-07-29

    申请人： Byung-sun Choi ,  Kang-wook Chun

    发明人： Byung-sun Choi ,  Kang-wook Chun

    IPC分类号： H04N7/24 ,  H03M7/40 ,  H04N7/26 ,  H04N7/50

    CPC分类号： H04N19/42 ,  H03M7/40 ,  H04N19/61

    摘要： An apparatus and method for variable length coding are provided. The apparatus for variable length coding includes a central processing unit which has a software module programmed in advance for variable length coding in a predetermined method, performs variable length coding of input symbol data by using the software module, and generates variable length code information. The apparatus further includes a bitstream processor which is a separate processor receiving the variable length code information from the central processing unit and generating a bitstream. According to the apparatus and method, modification or addition of a VLC table can be more easily performed through downloading software such that new video data coding standards can be easily supported. Also, by implementing the bitstream processor as a separate dedicated processor and thus implementing variable length coding as a software module, load to the central processing unit is reduced and high speed processing is enabled.

    摘要翻译： 提供了一种用于可变长度编码的装置和方法。 用于可变长度编码的装置包括一个中央处理单元，该中央处理单元具有预先用预定方法编程的可变长度编码的软件模块，通过使用软件模块执行输入符号数据的可变长度编码，并生成可变长度代码信息。 该装置还包括比特流处理器，其是从中央处理单元接收可变长度码信息并生成比特流的单独处理器。 根据该装置和方法，可以通过下载软件更容易地进行VLC表的修改或添加，使得可以容易地支持新的视频数据编码标准。 此外，通过将比特流处理器实现为单独的专用处理器，从而实现可变长度编码作为软件模块，减少对中央处理单元的负载，并且能够进行高速处理。

    Apparatus and method for variable length coding
    2.
    发明授权
    Apparatus and method for variable length coding 失效
    用于可变长度编码的装置和方法

    公开(公告)号：US07218257B2

    公开(公告)日：2007-05-15

    申请号：US10901302

    申请日：2004-07-29

    申请人： Byung-sun Choi ,  Kang-wook Chun

    发明人： Byung-sun Choi ,  Kang-wook Chun

    IPC分类号： H03M7/40

    CPC分类号： H04N19/42 ,  H03M7/40 ,  H04N19/61

    摘要： An apparatus and method for variable length coding are provided. The apparatus for variable length coding includes a central processing unit which has a software module programmed in advance for variable length coding in a predetermined method, performs variable length coding of input symbol data by using the software module, and generates variable length code information. The apparatus further includes a bitstream processor which is a separate processor receiving the variable length code information from the central processing unit and generating a bitstream. According to the apparatus and method, modification or addition of a VLC table can be more easily performed through downloading software such that new video data coding standards can be easily supported. Also, by implementing the bitstream processor as a separate dedicated processor and thus implementing variable length coding as a software module, load to the central processing unit is reduced and high speed processing is enabled.

    摘要翻译： 提供了一种用于可变长度编码的装置和方法。 用于可变长度编码的装置包括一个中央处理单元，该中央处理单元具有预先用预定方法编程的可变长度编码的软件模块，通过使用软件模块执行输入符号数据的可变长度编码，并生成可变长度代码信息。 该装置还包括比特流处理器，其是从中央处理单元接收可变长度码信息并生成比特流的单独处理器。 根据该装置和方法，可以通过下载软件更容易地进行VLC表的修改或添加，使得可以容易地支持新的视频数据编码标准。 此外，通过将比特流处理器实现为单独的专用处理器，从而实现可变长度编码作为软件模块，减少对中央处理单元的负载，并且能够进行高速处理。

    Method and apparatus for encoding and decoding moving images using a plurality of modified MF tables, and recording medium storing program for executing the method
    5.
    发明申请
    Method and apparatus for encoding and decoding moving images using a plurality of modified MF tables, and recording medium storing program for executing the method 审中-公开
    使用多个修改的MF表对运动图像进行编码和解码的方法和装置，以及用于执行该方法的记录介质存储程序

    公开(公告)号：US20060153464A1

    公开(公告)日：2006-07-13

    申请号：US11324537

    申请日：2006-01-04

    申请人： Byung-cheol Song ,  Kang-wook Chun

    发明人： Byung-cheol Song ,  Kang-wook Chun

    IPC分类号： G06K9/36 ,  G06K9/46

    CPC分类号： H04N19/80 ,  H04N19/126 ,  H04N19/136 ,  H04N19/176 ,  H04N19/61

    摘要： Methods of encoding and decoding moving images are provided in which noise from an input image is simultaneously encoded and removed. The method of encoding moving images includes selecting a modified multiplication factor table in block units in consideration of noise information of the input image, integer-transforming the input image, and quantizing the input image using the selected modified multiplication factor table. Consequently, the efficiency and performance of compressing moving images can be enhanced.

    摘要翻译： 提供了编码和解码运动图像的方法，其中来自输入图像的噪声被同时编码和去除。 编码运动图像的方法包括考虑输入图像的噪声信息，输入图像的整数变换，以及使用选择的修正倍增因子表量化输入图像，以块为单位来选择修正的乘法因子表。 因此，可以提高压缩运动图像的效率和性能。

    Motion estimation method for motion picture encoding and recording medium having program recorded thereon to implement the motion estimation method
    8.
    发明申请
    Motion estimation method for motion picture encoding and recording medium having program recorded thereon to implement the motion estimation method 审中-公开
    运动估计方法，用于运动图像编码和记录介质，其中记录有程序以实现运动估计方法

    公开(公告)号：US20050123039A1

    公开(公告)日：2005-06-09

    申请号：US10994435

    申请日：2004-11-23

    申请人： Byung-cheol Song ,  Kang-wook Chun

    发明人： Byung-cheol Song ,  Kang-wook Chun

    IPC分类号： H04N7/32 ,  H04B1/66 ,  H04N7/26 ,  H04N7/50

    CPC分类号： H04N19/57 ,  H04N19/53 ,  H04N19/56 ,  H04N19/61

    摘要： A motion estimation method in a hierarchical frame structure, applied to motion picture encoding, the method including, calculating, an initial motion vector of a predetermined block of a current frame at a low resolution with reference to an adjacent frame of the current frame, calculating a reference motion vector using the calculated initial motion vector for motion estimation between the current frame and a reference frame, adjusting a resolution of the calculated reference motion vector to a high resolution, determining a search area within the reference frame based on the adjusted reference motion vector and calculating a final motion vector by performing motion estimation within the determined search area.

    摘要翻译： 一种应用于运动图像编码的分层帧结构中的运动估计方法，该方法包括：参考当前帧的相邻帧以低分辨率计算当前帧的预定块的初始运动矢量，计算 使用所计算的用于当前帧和参考帧之间的运动估计的初始运动矢量的参考运动矢量，将所计算的参考运动矢量的分辨率调整为高分辨率，基于调整的参考运动确定参考帧内的搜索区域 通过在确定的搜索区域内执行运动估计来计算最终的运动矢量。

    Method for irregular triangle mesh representation of an image based on adaptive control point removal
    9.
    发明授权
    Method for irregular triangle mesh representation of an image based on adaptive control point removal 失效
    基于自适应控制点去除的图像的不规则三角形网格表示方法

    公开(公告)号：US5923777A

    公开(公告)日：1999-07-13

    申请号：US705644

    申请日：1996-08-30

    申请人： Kang-wook Chun ,  Jae-moon Jo ,  Byeungwoo Jeon

    发明人： Kang-wook Chun ,  Jae-moon Jo ,  Byeungwoo Jeon

    IPC分类号： H04N19/00 ,  G06T7/60 ,  G06T9/00 ,  G06T13/00 ,  G06T13/80 ,  G06T17/20 ,  H04N1/41 ,  H04N19/20 ,  H04N19/59 ,  H04N19/96 ,  G06K9/34

    CPC分类号： G06T17/20

    摘要： An image representation method for representing an image using triangular mesh which is adaptively formed based on a degree of texture description of the image. The image representation method includes segmenting an image using regular rectangular grids, where each vertex point of the rectangular grid is an individual pixel within an image; generating regular triangular meshes with respect to the image using pixel data associated with four vertex points of each respective rectangular grid formed by the segmentation; computing the degree of texture description of the image relative to respective control points, which correspond to the vertex points of the regular triangular meshes; removing a control point with the least texture description among the texture descriptions calculated for the control points; triangulating a region of support which is enclosed by control points neighboring the removed control point and associated with the removed control point, into irregular triangular meshes such that each neighboring control point functions as a vertex point; and repeating the steps of 1) control point removal, 2) triangulation of the region of support associated to the removed control point, and 3) removal of meshes on the basis of the texture description associated with the remaining control points until the number of the remaining control points after triangulation reaches a predetermined number.

    摘要翻译： 一种图像表示方法，用于基于图像的纹理描述度自适应地形成三角形网格来表示图像。 图像表示方法包括使用规则矩形网格对图像进行分割，其中矩形网格的每个顶点是图像内的单个像素; 使用与通过分割形成的每个相应矩形网格的四个顶点相关联的像素数据相对于图像生成规则三角形网格; 计算相对于对应于正三角形网格的顶点的各个控制点的图像的纹理描述程度; 在针对控制点计算的纹理描述中移除具有最小纹理描述的控制点; 将由与被去除的控制点相邻的控制点包围并与去除的控制点相关联的支撑区域三角化成不规则的三角形网格，使得每个相邻控制点用作顶点; 并且重复以下步骤：1）控制点去除; 2）与去除的控制点相关联的支持区域的三角测量;以及3）基于与剩余控制点相关联的纹理描述去除网格，直到 三角测量后的剩余控制点达到预定数量。