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公开(公告)号：KR101117000B1
公开(公告)日：2012-03-16
申请号：KR1020090030239
申请日：2009-04-08
Applicant: 한국전자통신연구원
IPC: H04N19/147 , H04N19/11 , H04N19/51
Abstract: 화면 내 예측 오프셋을 이용한 부호화/복호화 방법 및 그 장치를 제안한다. 본 발명의 실시예에 따른 화면 내 예측 오프셋을 이용한 부호화 장치는 영상 데이터를 수신하면 현재 블록에 대해 율 왜곡 최적화 방법을 이용하여 예측 모드와 오프셋을 선택하는 율 왜곡 최적화부; 상기 현재 블록의 부호화된 주변 정보를 이용하여 상기 예측 모드로 예측 블록을 생성하는 화면 내 예측부; 및, 상기 예측 블록과 상기 오프셋을 픽셀단위로 덧셈하여 오프셋 보상한 예측 블록 생성하는 오프셋 보상부를 포함한다.
오프셋, 인트라, 화면 내 예측-
公开(公告)号：KR1020110111339A
公开(公告)日：2011-10-11
申请号：KR1020110083953
申请日：2011-08-23
Applicant: 한국전자통신연구원
CPC classification number: H04N19/105 , H04N19/13 , H04N19/176
Abstract: 화면내 예측 시스템에서 최적 모드를 예측하는 장치 및 방법을 제안한다. 본 발명의 실시예에 따른 화면내 예측 시스템에서 최적 모드를 예측하는 장치는, 이미 부호화된 주변 블록들 각각에 대하여 현재 블록과의 상대 위치와 상기 주변 블록 각각의 예측 모드를 판독하는 주변 블록 판독부; 상기 현재 블록과의 상대 위치를 고려하여 기설정한 상대적 가중치를 이용하여 주변 블록들 각각의 예측 모드에 가중치를 할당하는 가중치 할당부; 및, 가장 높은 가중치를 가지는 예측 모드를 최적 모드로 선택하는 최적 모드 판별부를 포함한다.
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公开(公告)号：KR1020110070823A
公开(公告)日：2011-06-24
申请号：KR1020100129885
申请日：2010-12-17
Applicant: 한국전자통신연구원
IPC: H04N19/117
CPC classification number: H04N19/523 , H04N19/117 , H04N19/172 , H04N19/174 , H04N19/463 , H04N19/82
Abstract: PURPOSE: A video encoding/decoding method and apparatus are provided to manage adaptive interpolation filters and adaptive loop filters with a list. CONSTITUTION: A filter decision unit an adaptive filter corresponding to a present image(S310). A filter list controller compares the decided adaptive filter with one or more existing adaptive filters included in a filter manager(S320). The filter list controller decides whether to add the decided adaptive filter to the filter manager(S350). Using the adaptive filter included in the filter manager, the present image is encoded(S370).
Abstract translation: 目的：提供视频编码/解码方法和装置，用于管理具有列表的自适应插值滤波器和自适应环路滤波器。 构成：滤波器判定单元对应于当前图像的自适应滤波器（S310）。 滤波器列表控制器将确定的自适应滤波器与包括在滤波器管理器中的一个或多个现有自适应滤波器进行比较（S320）。 滤波器列表控制器决定是否向滤波器管理器添加确定的自适应滤波器（S350）。 使用滤波器管理器中包括的自适应滤波器对当前图像进行编码（S370）。
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公开(公告)号：KR1020110068851A
公开(公告)日：2011-06-22
申请号：KR1020100122575
申请日：2010-12-03
Applicant: 한국전자통신연구원
IPC: H04N19/11 , H04N19/174 , H04N19/51
CPC classification number: H04N19/11 , H04N19/174 , H04N19/51
Abstract: PURPOSE: An image encoding/decoding apparatus and method thereof are provided to efficiently predict the parameter of an encoding object block and to increase the performance of image compression. CONSTITUTION: A control unit determines a reference block for the prediction of an in-screen encoding parameter of a current block(S210). The control unit predicts the in-screen encoding parameter of a current block in the use of an encoding parameter of the reference block(S220). The control unit performs entropy encoding abut the encoding parameter in the use of the encoding parameter of the reference block(S230).
Abstract translation: 目的：提供一种图像编码/解码装置及其方法，以有效地预测编码对象块的参数并增加图像压缩的性能。 构成：控制单元确定用于预测当前块的屏幕内编码参数的参考块（S210）。 控制单元使用参考块的编码参数来预测当前块的屏幕内编码参数（S220）。 在使用参考块的编码参数的情况下，控制单元执行邻接编码参数的熵编码（S230）。
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公开(公告)号：KR1020110059557A
公开(公告)日：2011-06-02
申请号：KR1020100119111
申请日：2010-11-26
Applicant: 한국전자통신연구원
IPC: H04N19/119 , H04N19/53
CPC classification number: H04N19/119 , H04N19/147 , H04N19/176 , H04N19/30 , H04N19/51
Abstract: PURPOSE: An image encoding and decoding method is provided to add a new block type except for a motion compensation block type of H. 264/AVC in case of encoding or decoding by a use of a macro block unit bigger than 16x16. CONSTITUTION: In case sub layer block type information is not an addition macro block type, an encoder encodes a target to an N/2xN macro block type or an NxN/2 macro block type(S360,S365). In case the sub layer block type information of the target is the addition macro block type, the encoder encodes on the basis of the sub layer block type information(S375). In case the sub layer block type information is an N/2xN/2 macro block type, the encoder decides a block type in a lower layer(S370,S380).
Abstract translation: 目的：提供一种图像编码和解码方法，在通过使用大于16×16的宏块单元进行编码或解码的情况下，添加除了H.264 / AVC的运动补偿块类型之外的新块类型。 构成：在子层块类型信息不是附加宏块类型的情况下，编码器将目标数据编码为N / 2xN宏块类型或N×N / 2宏块类型（S360，S365）。 在目标的子层块类型信息是加法宏块类型的情况下，编码器基于子层块类型信息进行编码（S375）。 在子层块类型信息是N / 2xN / 2宏块类型的情况下，编码器决定下层中的块类型（S370，S380）。
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Patent Agency Ranking
公开(公告)号：KR1020110001885A
公开(公告)日：2011-01-06
申请号：KR1020100051018
申请日：2010-05-31
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/00024 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/146 , H04N19/176 , H04N19/40 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/91 , H04N19/59
Abstract: PURPOSE: An intra coding method based on a super macro block is provided to improve coding efficiency by using a super macro block in an intra coding process. CONSTITUTION: An intra prediction unit(930) performs intra prediction using a super macro block. The intra prediction unit treats the super macro block as one unit. The intra prediction unit can divide the super macro block into a plurality of macro blocks. A coupling unit(940) generates a differential block based on the difference between the super macro block and predicted block. A converting and encoding unit(950) performs a conversion on the coupling unit and coding process.
Abstract translation: 目的：提供一种基于超宏块的帧内编码方法，以通过在帧内编码处理中使用超宏块来提高编码效率。 构成：帧内预测单元（930）使用超宏块进行帧内预测。 帧内预测单元将超宏块视为一个单位。 帧内预测单元可以将超宏块划分为多个宏块。 耦合单元（940）基于超宏块和预测块之间的差产生差分块。 转换和编码单元（950）对耦合单元进行转换和编码处理。
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公开(公告)号：KR1020100138735A
公开(公告)日：2010-12-31
申请号：KR1020100033225
申请日：2010-04-12
Applicant: 한국전자통신연구원
Inventor： 정세윤 , 최해철 , 임성창 , 김종호 , 이하현 , 조숙희 , 최진수 , 홍진우 , 정광수 , 박시내 , 남정학 , 조현호 , 심동규 , 안창범 , 박광훈 , 오승준
IPC: H04N19/117 , H04N19/137
CPC classification number: H04N19/126 , H04N19/146 , H04N19/159 , H04N19/172 , H04N19/176
Abstract: PURPOSE: A video encoding and decoding apparatus and a method using context information based adaptive post filter are provided to improve the efficiency of video encoding. CONSTITUTION: A reconstitution video generator(120) creates the reconstructed image using the differential signal and the restored prediction frame. The reconstitution video generator applies the deblocking filter. A post filter unit(130) decides whether to apply the fixed post filter based on the contextual information of the reconstructed image to the reconstructed image. The post filter unit decides whether to apply the post filter adaptively based on the contextual information of the reconstructed image to the reconstructed image. The post filter unit applies the fixed post filter or the post filter which was adaptively generated to the reconstructed image.
Abstract translation: 目的：提供一种使用基于上下文信息的自适应后置滤波器的视频编码和解码装置和方法，以提高视频编码的效率。 构成：重构视频发生器（120）使用差分信号和恢复的预测帧创建重构图像。 重构视频发生器应用去块滤波器。 后置滤波器单元（130）基于重构图像的上下文信息来确定是否将该固定后置滤波器应用于重构图像。 后置滤波器单元基于重构图像的上下文信息自适应地将后置滤波器应用于重构图像。 后置滤波器单元将自适应生成的固定后置滤波器或后置滤波器应用于重建图像。
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公开(公告)号：KR1020100111841A
公开(公告)日：2010-10-18
申请号：KR1020090030250
申请日：2009-04-08
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/124 , H04N19/176 , H04N2007/246
Abstract: PURPOSE: An encoding method and an apparatus thereof through adaptive bit depth reduction are provided to reduce system completely and improve the encoding efficiency without adaptively performing the bit depth rate. CONSTITUTION: A bit depth controller(110) determines whether to reduce the bit depth of an input signal. A bit depth reducing unit(120) reduces the bit depth of the input signal. A bit depth quantization unit(130) quantizes the input signal. A bit depth increasing unit(140) multiplies the bit depth of the input signal.
Abstract translation: 目的：提供一种通过自适应比特深度减少的编码方法及其装置，可以完全减少系统，提高编码效率，而无需自适应地执行比特深度率。 构成：比特深度控制器（110）确定是否减少输入信号的比特深度。 位深度减小单元（120）减小输入信号的位深度。 比特深度量化单元（130）对输入信号进行量化。 比特深度增加单元（140）将输入信号的比特深度相乘。
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公开(公告)号：KR1020100111835A
公开(公告)日：2010-10-18
申请号：KR1020090030238
申请日：2009-04-08
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: H04N7/24
CPC classification number: H04N19/122 , H04N19/124 , H04N19/176
Abstract: PURPOSE: A method and an apparatus for multi-dimensional transform and thresholding using multiple unit blocks are provided to improve the performance video data compression by performing additional conversion of adjacent blocks. CONSTITUTION: A block selection unit(231) converts an image data in M dimension. The block selection unit selects a block in the image data converted in M dimension. A conversion factor array unit(232) extracts the same conversion factors of the frequency from the blocks. A discrete cosine transform(233) arranges M dimension changed into the integer type N dimension.
Abstract translation: 目的：提供一种使用多个单位块进行多维变换和阈值处理的方法和装置，以通过执行相邻块的附加转换来改善视频数据压缩的性能。 构成：块选择单元（231）转换M维的图像数据。 块选择单元选择以M维转换的图像数据中的块。 转换因子阵列单元（232）从块提取相同的频率转换因子。 离散余弦变换（233）将M维变换为整数类型N维。
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公开(公告)号：KR1020100083673A
公开(公告)日：2010-07-22
申请号：KR1020090025735
申请日：2009-03-26
Applicant: 한국전자통신연구원
IPC: H04N19/147 , H04N19/166
CPC classification number: H04N19/105 , H04N19/166 , H04N19/567
Abstract: PURPOSE: A method and an apparatus for adaptively encoding and decoding reserved pictures are provided to adaptively determine whether to insert a reserved picture according to an error rate of a transmission channel and a distortion degree of an image. CONSTITUTION: A cost function calculating unit(110) receives an input image and a transmission channel error rate. The cost function calculating unit calculates an insertion cost and a non insertion cost using a cost function. A cost comparing unit(120) compares the amount of the insertion cost with the amount of the non insertion cost. If the amount of the insertion cost is smaller than the amount of the non insertion cost, a reserved picture insertion unit(130) inserts a reserved picture to the image frame. An encoding unit(140) encodes the image frame into which the reserved picture is inserted.
Abstract translation: 目的：提供一种用于自适应编码和解码保留图像的方法和装置，用于根据传输信道的错误率和图像的失真度来自适应地确定是否插入保留图像。 构成：成本函数计算单元（110）接收输入图像和传输通道错误率。 成本函数计算单元使用成本函数计算插入成本和非插入成本。 成本比较单元（120）将插入成本的金额与非插入成本的金额进行比较。 如果插入成本的量小于非插入成本的量，则保留图片插入单元（130）将保留的图片插入到图像帧。 编码单元（140）对保留图像插入到其中的图像帧进行编码。
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