적응적 임계치를 이용한 엔트로피 부복호화 방법 및 이러한 방법을 사용하는 장치
    3.
    发明公开
    적응적 임계치를 이용한 엔트로피 부복호화 방법 및 이러한 방법을 사용하는 장치 无效
    使用自适应阈值编码/解码的方法及其使用方法

    公开(公告)号:KR1020120100838A

    公开(公告)日:2012-09-12

    申请号:KR1020120022550

    申请日:2012-03-05

    CPC classification number: H04N19/13 H04N19/157

    Abstract: PURPOSE: An entropy encoding method using an adaptive threshold and an apparatus using the same are provided to adaptively set up a threshold by encoding/decoding entropy and to perform entropy encoding suitable for the property of residual coefficient. CONSTITUTION: An apparatus determines a threshold value(S400). The apparatus codes a run-mode(S410). The apparatus codes a level of coefficient which does not 0 in a run-mode. If a set threshold value is satisfied, the apparatus performs level mode coding(S420,S430). [Reference numerals] (AA) Start; (BB) No; (CC) Yes; (DD) End; (S400) Determining threshold; (S410) Performing run mode coding; (S420) Whether to satisfy a set threshold?; (S430) Performing level mode coding

    Abstract translation: 目的:提供一种使用自适应阈值的熵编码方法和使用该自适应阈值的装置,通过对熵进行编码/解码来自适应地建立阈值,并执行适用于剩余系数特性的熵编码。 构成:设备确定阈值(S400)。 该装置对运行模式进行编码(S410)。 该装置在运行模式中编码不为0的系数水平。 如果满足设定的阈值,则装置进行电平模式编码(S420,S430)。 (附图标记)(AA)开始; (BB)否 (CC)是; (DD)结束; (S400)确定阈值; (S410)执行运行模式编码; (S420)是否满足设定的阈值? (S430)执行电平模式编码

    엔트로피 부호화/복호화 방법
    6.
    发明公开
    엔트로피 부호화/복호화 방법 无效
    ENTROPY编码/解码方法

    公开(公告)号:KR1020120100839A

    公开(公告)日:2012-09-12

    申请号:KR1020120022551

    申请日:2012-03-05

    CPC classification number: H04N19/13 H04N19/103 H04N19/129

    Abstract: PURPOSE: An entropy encoding/decoding method is provided to increase the compression efficiency of an image and to efficiency of entropy encoding. CONSTITUTION: An encoding unit scans a coefficient of a residual signal in a low frequency component order. The entropy encoding unit arranges the scanned coefficient(S510). The entropy encoding unit performs Last_coeff encoding of the aligned coefficients(S520). The entropy encoding unit performs explicit run/level mode encoding(S550). The encoding unit performs implicit level mode encoding(S560). [Reference numerals] (AA) Yes; (BB) No; (S510) Scanning; (S520) Encoding Last_coeff; (S530) Determining the number of explicit; (S540) The number of encoding

    Abstract translation: 目的:提供熵编码/解码方法,以提高图像的压缩效率和熵编码效率。 构成:编码单元以低频分量顺序扫描残差信号的系数。 熵编码单元布置扫描系数(S510)。 熵编码单元对对齐系数进行Last_coeff编码(S520)。 熵编码单元执行显式的运行/电平模式编码(S550)。 编码单元执行隐式电平模式编码(S560)。 (附图标记)(AA)是; (BB)否 (S510)扫描; (S520)Encoding Last_coeff; (S530)确定显式数; (S540)编码次数<显示次数; (S550)显式运行/级别模式编码; (S560)隐式电平模式编码

    인트라 매크로 블록의 디블록킹 필터 및 필터링 방법
    7.
    发明公开
    인트라 매크로 블록의 디블록킹 필터 및 필터링 방법 有权
    用于去除宏块的滤波和滤波方法

    公开(公告)号:KR1020100007728A

    公开(公告)日:2010-01-22

    申请号:KR1020090060478

    申请日:2009-07-03

    CPC classification number: H04N19/00

    Abstract: PURPOSE: A filter for deblocking an intra macro block and a filtering method therefor are provided to perform adaptive deblocking filtering using a video block unit quantization parameter in a macro block boundary included in the intra macro block. CONSTITUTION: A filtering value generating unit(610) generates a filtering value based on an adjacent pixel value of the outermost pixel adjacent to a boundary of an intra macro block and a quantization parameter of the intra macro block. A deblocking filter(620) performs deblocking filtering on the outermost pixel based on the filtering value. If the filtering value is larger than a positive number critical value, the filtering value generating unit determines the positive critical value as the filtering value.

    Abstract translation: 目的:提供一种用于去块内部宏块的滤波器及其滤波方法,以使用在宏块内包含的宏块边界中的视频块单位量化参数进行自适应去块滤波。 构成:滤波值生成部(610)基于与宏块内部的宏块的边界相邻的最外边的像素的相邻像素值和宏块的量化参数,生成滤波值。 去块滤波器(620)基于滤波值对最外面的像素进行去块滤波。 如果滤波值大于正数临界值,则滤波值生成单元将正临界值确定为滤波值。

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