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    조명변화 보상 움직임 예측 부호화 및 복호화 방법 및 장치
    16.
    发明公开
    조명변화 보상 움직임 예측 부호화 및 복호화 방법 및 장치 有权
    编码和解码补偿照明变化的方法和装置

    公开(公告)号：KR1020070095837A

    公开(公告)日：2007-10-01

    申请号：KR1020070028225

    申请日：2007-03-22

    Applicant: 한국전자통신연구원 ,  세종대학교산학협력단

    Inventor： 조숙희 ,  권형진 ,  허남호 ,  김진웅 ,  이수인 ,  이영렬 ,  허재호 ,  심동규

    IPC: H04N19/51 ,  H04N19/136

    CPC classification number: H04N19/463 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

    Abstract: A motion estimation encoding/decoding apparatus and a method thereof are provided to reduce bits wasted due to the reflection of an amount of illumination change by compressing an amount of the illumination change using spatial closeness of illumination change occurrence areas. An illumination change compensating module(320) differentiates a pixel average value of a present block and a pixel average value of a reference block to perform illumination change compensation. A residual signal generator(330) generates a residual signal by differentiating the present block having been subject to the illumination change compensation the reference block having been subject to the illumination change corresponding to a motion vector. An illumination change predicting module(340) sets an illumination change amount of a neighboring block, which has been subject to the illumination change compensation, as the prediction value of the illumination change amount of the present block. The illumination change predicting module performs a DPCM(Differential Pulse Code Modulation) based on the illumination change amount of the present block and the prediction value of the illumination change amount.

    Abstract translation: 提供了一种运动估计编码/解码装置及其方法，用于通过使用照射变化发生区域的空间接近来压缩照射变化的量来减少由于照射变化量的反射而浪费的比特。 照明改变补偿模块（320）对当前块的像素平均值和参考块的像素平均值进行区分以进行照明变化补偿。 残余信号发生器（330）通过对已经经过照明变化补偿的当前块进行微分来产生残差信号，该参考块已经经受对应于运动矢量的照明改变。 照明变化预测模块（340）将已经进行了照明变化补偿的相邻块的照明变化量设定为当前块的照明变化量的预测值。 照明变化预测模块基于当前块的照明变化量和照明变化量的预测值来执行DPCM（差分脉冲编码调制）。

    잔여계수의 상관성에 따라 변환기를 선택적으로 이용한부호화/복호화 장치 및 그 방법
    17.
    发明公开
    잔여계수의 상관성에 따라 변환기를 선택적으로 이용한부호화/복호화 장치 및 그 방법 有权
    使用替代转换器根据残留信号的关联编码和解码的装置和方法

    公开(公告)号：KR1020080026463A

    公开(公告)日：2008-03-25

    申请号：KR1020070036089

    申请日：2007-04-12

    Applicant: 한국전자통신연구원 ,  광운대학교 산학협력단 ,  세종대학교산학협력단

    Inventor： 김대연 ,  임성창 ,  서정일 ,  백승권 ,  장인선 ,  장대영 ,  김재곤 ,  문경애 ,  홍진우 ,  김진웅 ,  오승준 ,  안창범 ,  정세윤 ,  최해철 ,  이영렬 ,  심동규

    IPC: H04N19/12 ,  H04N19/625

    CPC classification number: H04N19/103 ,  H04N19/122 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

    Abstract: An apparatus for encoding and decoding by using a converter alternatively according to the correlation of residual coefficients and a method thereof are provided to select a converter with a highest compression rate by perform an RD(Rate-Distortion) cost optimization using DCT(Discrete Cosine Transform) and DST(Discrete Sine Transform) in generating a quantized conversion coefficient through converters and quantizers after prediction between images or within the images in a predetermined size of block, thereby improving the compression rate of an image block. A first converter(31-34) performs the DCT(Discrete Cosine Transform) in a block unit, first quantization, first inverse quantization and IDCT(Interger-approximated Discrete Cosine Inverse Transform) of residual coefficients which are generated after performing prediction between images or within the images. A second converter(35-38) performs the DST(Discrete Sine Transform) in the block unit, second quantization, second inverse quantization, and IDST(Interger-approximated Discrete Sine Inverse Transform) of the residual coefficients. A selection unit(39) performs RD Cost(Rate-Distortion Cost) to select a converter with a high compression rate by block, and a display unit(40) displays converter information selected by the selection unit on a corresponding flag bit in a macro block unit.

    Abstract translation: 提供了根据剩余系数的相关性或其方法替代地使用转换器进行编码和解码的装置，以通过使用DCT（离散余弦变换）进行RD（速率 - 失真）成本优化来选择具有最高压缩率的转换器 ）和DST（离散正弦变换）中，通过转换器和量化器在预测图像之后或在预定大小的块内的图像内生成量化转换系数，从而提高图像块的压缩率。 第一转换器（31-34）以块单位进行DCT（离散余弦变换），在执行图像之间的预测之后产生的剩余系数的第一量化，第一逆量化和IDCT（Interger近似离散余弦逆变换） 在图像内。 第二转换器（35-38）以剩余系数的块单位，第二量化，第二逆量化和IDST（Interger-Neared离散正弦逆变换）执行DST（离散正弦变换）。 选择单元（39）执行RD成本（速率失真成本），以块的方式选择具有高压缩率的转换器，并且显示单元（40）将由选择单元选择的转换器信息显示在宏中的相应标志位上 块单位。

    적응적 움직임 벡터 예측에 기반한 비디오 데이터 디코딩 방법
    18.
    发明公开
    적응적 움직임 벡터 예측에 기반한 비디오 데이터 디코딩 방법 有权
    用于预测多视点图像中自适应运动矢量的方法和装置

    公开(公告)号：KR1020120114198A

    公开(公告)日：2012-10-16

    申请号：KR1020120096801

    申请日：2012-08-31

    Applicant: 한국전자통신연구원 ,  세종대학교산학협력단

    Inventor： 김대희 ,  조숙희 ,  윤국진 ,  허남호 ,  이수인 ,  이영렬 ,  이융기 ,  임성창

    IPC: H04N19/597 ,  H04N13/00

    CPC classification number: H04N19/597 ,  H04N13/10 ,  H04N19/44 ,  H04N19/513

    Abstract: PURPOSE: A method for adaptively estimating a motion vector in a multi-view image and a method thereof are provided to reduce a motion vector difference using only blocks related to a current frame among surrounding blocks, thereby increasing a compression rate. CONSTITUTION: A block detecting unit(110) detects only blocks, which refers to the same block as a block to which a current block temporally or spatially refers, among blocks adjacent to the current block. An adaptive estimating unit(140) calculates an estimation motion vector value based on the number of blocks and motion vectors of blocks which are detected in a temporal vector estimating unit or a spatial vector estimating unit. [Reference numerals] (110) Block detecting unit; (120) Time calculating unit; (130) Space calculating unit; (140) Adaptive estimating unit

    Abstract translation: 目的：提供一种用于自适应地估计多视图图像中的运动矢量的方法及其方法，以仅使用与周围块中的当前帧相关的块来减小运动矢量差，从而增加压缩率。 构成：与当前块相邻的块中，块检测单元（110）仅检测参考与当前块临时或空间参考的块相同的块的块。 自适应估计单元（140）基于在时间矢量估计单元或空间矢量估计单元中检测到的块的数量和块的运动矢量来计算估计运动矢量值。 （附图标记）（110）块检测单元; （120）时间计算单位; （130）空间计算单元; （140）自适应估计单元

    이산 여현 변환/이산 정현 변환을 선택적으로 이용하는 부호화/복호화 장치 및 방법
    19.
    发明公开
    이산 여현 변환/이산 정현 변환을 선택적으로 이용하는 부호화/복호화 장치 및 방법 有权
    使用DESECETE COSINE / SINE TRANSTORM选择性编码/解码图像的装置和方法

    公开(公告)号：KR1020100038060A

    公开(公告)日：2010-04-12

    申请号：KR1020090093127

    申请日：2009-09-30

    Applicant: 한국전자통신연구원 ,  세종대학교산학협력단

    Inventor： 임성창 ,  정세윤 ,  최해철 ,  최진수 ,  홍진우 ,  이영렬 ,  김대연

    IPC: H04N19/12 ,  H04N19/625

    CPC classification number: G06T9/007 ,  G06T9/004 ,  H04N7/17318 ,  H04N19/12 ,  H04N19/132 ,  H04N19/147 ,  H04N19/149 ,  H04N19/19 ,  H04N19/46 ,  H04N19/70 ,  H04N21/236 ,  H04N19/625 ,  H04N19/63

    Abstract: PURPOSE: Encoding/decoding apparatus and method using DCT/DST selectively are provided to increase a compression ratio of an image block by performing inter/intra prediction between images for a fixed size blocks and then conversion and quantization. CONSTITUTION: A first conversion unit(220) converts a target image into a first conversion coefficient using DCT(Discrete Cosine Transform). A second conversion unit(230) converts the target image into a second conversion coefficient using DST(Discrete Sine Transform). A conversion method decision unit(260) selects the first or second conversion coefficients as a conversion coefficients for the target image. The first conversion unit creates a first decoding image for the target image based on the first conversion coefficient. The second conversion unit creates a decoding image for the target image based on the second conversion coefficient.

    Abstract translation: 目的：选择性地使用DCT / DST的编码/解码装置和方法被提供以通过对固定大小的块进行图像之间的帧间/帧内预测，​​然后进行转换和量化来增加图像块的压缩比。 构成：第一转换单元（220）使用DCT（离散余弦变换）将目标图像转换为第一转换系数。 第二转换单元（230）使用DST（离散正弦变换）将目标图像转换为第二转换系数。 转换方法决定单元（260）选择第一或第二转换系数作为目标图像的转换系数。 第一转换单元基于第一转换系数创建用于目标图像的第一解码图像。 第二转换单元基于第二转换系数创建目标图像的解码图像。

    다시점 동영상 부호화에서 고속 모드 결정 방법 및 장치
    20.
    发明公开
    다시점 동영상 부호화에서 고속 모드 결정 방법 및 장치 失效
    方法及其在多视图视频编码中的快速模式决策的设备

    公开(公告)号：KR1020090122633A

    公开(公告)日：2009-12-01

    申请号：KR1020080048544

    申请日：2008-05-26

    Applicant: 한국전자통신연구원 ,  세종대학교산학협력단

    Inventor： 조숙희 ,  허남호 ,  김진웅 ,  이수인 ,  이영렬 ,  이융기 ,  임성창 ,  한동훈

    IPC: H04N19/103 ,  H04N19/597 ,  H04N13/00

    CPC classification number: H04N19/107 ,  H04N19/567 ,  H04N19/597

    Abstract: PURPOSE: A method for determining a mode in decoding a multi-focusing animation by efficiently removing the spatial expectation coding is provided to determine a coding mode at high speed through rate-distortion optimization. CONSTITUTION: A macro block is included in a frame which does not use inter-view prediction and inter prediction(S304). A decoding mode is determined according to the rate-distortion cost of macro block(S305). The frame type coding the macro block is confirmed whether the frame type is P frame or B frame(S306). The encoding mode is determined according to the coded block pattern of macro block(S307). The macro block is included in the image data(S309).

    Abstract translation: 目的：提供一种通过有效去除空间期望编码来确定多焦点动画解码模式的方法，以通过速率失真优化来高速确定编码模式。 构成：在不使用视域间预测和帧间预测的帧中包含宏块（S304）。 根据宏块的速率失真成本确定解码模式（S305）。 确定帧类型是P帧还是B帧（S306）。 根据宏块的编码块模式来确定编码模式（S307）。 宏块包括在图像数据中（S309）。

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