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公开(公告)号：KR1020130053645A
公开(公告)日：2013-05-24
申请号：KR1020110119169
申请日：2011-11-15
Applicant: 한국전자통신연구원
IPC: H04N19/82 , H04N19/117
CPC classification number: H04N19/82 , H04N19/117 , H04N19/124
Abstract: PURPOSE: A video encoding/decoding method using an adaptive loop filter and a device thereof are provided to reduce operation complexity and to improve the efficiency of image encoding and decoding by filtering an adaptive loop. CONSTITUTION: A decoder derives a filter tap and a filter coefficient of an adaptive loop filter(S510). The decoder determines the application of adaptive loop filtering to each area or block in a frame(S520). The decoder filters an adaptive loop to a reconstruction image by using information about the filter tap, the filter coefficient, and the application of the adaptive loop filtering(S530). [Reference numerals] (S510) Derive a filter tap and a filter coefficient; (S520) Determine whether to apply filtering; (S530) Perform the filtering
Abstract translation: 目的：提供一种使用自适应环路滤波器的视频编码/解码方法及其装置，以通过滤波自适应环路来降低操作复杂度并提高图像编码和解码的效率。 构成：解码器导出滤波器抽头和自适应环路滤波器的滤波器系数（S510）。 解码器确定对帧中的每个区域或块的自适应环路滤波的应用（S520）。 解码器通过使用关于滤波器抽头的信息，滤波器系数和自适应环路滤波的应用来对重构图像进行自适应环路过滤（S530）。 （参考号）（S510）导出滤波器抽头和滤波器系数; （S520）确定是否应用过滤; （S530）执行过滤
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公开(公告)号：KR101255230B1
公开(公告)日：2013-04-16
申请号：KR1020120068178
申请日：2012-06-25
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/597 , H04N13/00
Abstract: 본 발명은 서로 다른 시점(viewpoint)을 가지는 복수의 카메라가 각기 촬영한 다시점(multi-viewpoint) 동영상 데이터들을 부호화하기 위하여 적응적으로 움직임 벡터를 예측하는 방법 및 장치에 관한 것으로서, 본 발명은 현재 블록의 인접 블록 중 현재 블록이 시간적 또는 공간적으로 참조하는 블록과 동일한 블록을 참조하는 블록만을 검출하는 블록 검출부; 및 블록 검출부에서 검출된 블록의 움직임 벡터를 기초로 현재 블록의 예측 움직임 벡터값을 구하는 적응적 예측부를 포함하여 적응적으로 움직임 벡터를 예측함으로써 압축률을 개선한다.
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公开(公告)号：KR1020120095823A
公开(公告)日：2012-08-29
申请号：KR1020120077423
申请日：2012-07-16
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/184 , H04N19/124 , H04N19/174 , H04N19/176
Abstract: PURPOSE: An encoding/decoding method and an apparatus thereof through adaptive bit depth reduction are provided to reduce the bit depth of brightness and color components and to selectively and adaptively perform reduction of bit depth. CONSTITUTION: An encoding apparatus determines reduction of bit depth of an input signal(S510). The encoding apparatus reduces the bit depth of the input signal in case the encoding apparatus determines the reduction of the bit depth(S520). The encoding apparatus quantizes the input signal(S530). The encoding device increases the bit depth of the input signal(S540).
Abstract translation: 目的：提供一种通过自适应比特深度减少的编码/解码方法及其装置，以减少亮度和颜色分量的比特深度，并且有选择地和自适应地执行比特深度的减少。 构成：编码装置确定输入信号的位深度的减少（S510）。 在编码装置确定比特深度减小的情况下，编码装置减少输入信号的比特深度（S520）。 编码装置对输入信号进行量化（S530）。 编码装置增加输入信号的比特深度（S540）。
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公开(公告)号：KR1020120095794A
公开(公告)日：2012-08-29
申请号：KR1020120016171
申请日：2012-02-17
Applicant: 한국전자통신연구원 , 한밭대학교 산학협력단
IPC: H04N19/51 , H04N19/105
CPC classification number: H04N19/51 , H04N19/105 , H04N19/159
Abstract: PURPOSE: A high speed encoding method is provided to determine a motion prediction direction and a reference picture at high speed and to reduce the complexity of an image encoding device. CONSTITUTION: An image encoding apparatus defines a test block group by combination of neighbor blocks of an encoding target block(S310). The image encoding apparatus determines a motion prediction direction of the encoding target block based on a motion prediction mode of the block included in the test block group(S320). The image encoding apparatus determines a reference picture of the encoding target block based on a reference picture of the block(S330).
Abstract translation: 目的：提供高速编码方法，以高速度确定运动预测方向和参考图像，并降低图像编码装置的复杂度。 构成：图像编码装置通过组合编码对象块的相邻块来定义测试块组（S310）。 图像编码装置基于包括在测试块组中的块的运动预测模式来确定编码对象块的运动预测方向（S320）。 图像编码装置基于块的参考图像确定编码对象块的参考图像（S330）。
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公开(公告)号：KR1020120088611A
公开(公告)日：2012-08-08
申请号：KR1020120010096
申请日：2012-01-31
Applicant: 한국전자통신연구원
IPC: H04N19/51 , H04N19/184
CPC classification number: H04N19/184 , H04N19/159 , H04N19/513
Abstract: PURPOSE: A video encoding/decoding method using a motion vector and a device thereof are provided to encode/decode an image using a cut motion vector. CONSTITUTION: A reference picture buffer(190) stores a reference picture. A motion compensation unit(112) generates a prediction block using the reference picture and a motion vector of the reference picture. The motion vector of the reference picture is cut with a predetermined dynamic range. The dynamic range is defined by a level of an image codec. The dynamic range is determined by a predetermined bit depth. The bit depth is defined by the level of the image codec.
Abstract translation: 目的：提供使用运动矢量的视频编码/解码方法及其装置，以使用切割运动矢量对图像进行编码/解码。 构成：参考图像缓冲器（190）存储参考图像。 运动补偿单元（112）使用参考图片和参考图片的运动矢量生成预测块。 以预定的动态范围切割参考图像的运动矢量。 动态范围由图像编解码器的级别定义。 动态范围由预定位深度确定。 位深度由图像编解码器的级别定义。
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Patent Agency Ranking
公开(公告)号：KR1020120083260A
公开(公告)日：2012-07-25
申请号：KR1020120064503
申请日：2012-06-15
Applicant: 한국전자통신연구원
CPC classification number: H04H20/65 , H04N13/359
Abstract: PURPOSE: A method for transmitting a broadcasting signal is provided to automatically vary a decoding method and a parallax barrier according to a broadcasting mode. CONSTITUTION: If a broadcasting program is inputted, a broadcasting service device obtains the broadcasting mode information of the corresponding broadcasting program by the analysis of the broadcasting program inputted through the program scheduler(S101,S102). The broadcasting service device encoded stream(S103). The broadcasting service device generates transport stream through a multiplexer(S104).
Abstract translation: 目的：提供一种用于发送广播信号的方法，以根据广播模式自动改变解码方法和视差屏障。 构成：如果广播节目被输入，广播服务设备通过对通过节目调度器输入的广播节目的分析来获得相应广播节目的广播模式信息（S101，S102）。 广播服务设备编码流（S103）。 广播业务装置通过多路复用器生成传输流（S104）。
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公开(公告)号：KR1020120033289A
公开(公告)日：2012-04-06
申请号：KR1020110099197
申请日：2011-09-29
Applicant: 한국전자통신연구원 , 한밭대학교 산학협력단
IPC: H04N19/30 , H04N19/117
CPC classification number: H04N19/597 , H04N19/117 , H04N19/30 , H04N19/34 , H04N19/36 , H04N19/463 , H04N19/635 , H04N19/80 , H04N19/82 , H04N19/187 , H04N19/50 , H04N19/70
Abstract: PURPOSE: An image encoding/decoding method using filter information prediction and a device thereof are provided to reduce the quantity of transmission data. CONSTITUTION: An encoder and a decoder predict the filter information used for a target restoration image from a predetermined layer(S510). The encoder and the decoder filter the target restoration image by using the predicted filter information(S520). The filter information includes calculated filter information and/or predetermined filter information.
Abstract translation: 目的：提供一种使用滤波器信息预测的图像编码/解码方法及其装置，以减少发送数据量。 构成：编码器和解码器从预定层预测用于目标恢复图像的滤波器信息（S510）。 编码器和解码器通过使用预测的滤波器信息来过滤目标恢复图像（S520）。 滤波器信息包括计算的滤波器信息和/或预定滤波器信息。
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公开(公告)号：KR1020120033218A
公开(公告)日：2012-04-06
申请号：KR1020110022239
申请日：2011-03-14
Applicant: 한국전자통신연구원
IPC: H04N19/122 , H04N19/124 , H04N19/13 , H04N19/129 , H04N19/156 , H04N19/157
CPC classification number: H04N19/122 , H04N19/124 , H04N19/129 , H04N19/13 , H04N19/156 , H04N19/157
Abstract: PURPOSE: A method for determining an adaptive encoding/decoding target area and an apparatus thereof are provided to encode a part of an important area of a residual signal. CONSTITUTION: An encoding device generates transformation coefficient levels by transforming and quantizing a residual signal(S100). The encoding device determines a target encoding area with transformation coefficient levels to encode(S110). The encoding device scans the transformation coefficient levels in the target encoding area(S120). The encoding device performs entropy encoding for the scanned transformation coefficient levels(S130).
Abstract translation: 目的：提供一种用于确定自适应编码/解码目标区域的方法及其装置，以对剩余信号的重要区域的一部分进行编码。 构成：编码装置通过变换和量化残差信号来生成变换系数电平（S100）。 编码装置确定具有变换系数电平的目标编码区域进行编码（S110）。 编码装置扫描目标编码区域中的变换系数电平（S120）。 编码装置对所扫描的变换系数电平进行熵编码（S130）。
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公开(公告)号：KR1020120016989A
公开(公告)日：2012-02-27
申请号：KR1020110050852
申请日：2011-05-27
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/124 , H04N19/119 , H04N19/14 , H04N19/176 , H04N19/196 , H04N19/33 , H04N19/463 , H04N19/70
Abstract: PURPOSE: An image encoding and decoding method and a device thereof are provided to adaptively set a quantization parameter according to unit information of an encoding target unit, thereby efficiently performing quantization, de-blocking filtering, entropy encoding/decoding, motion prediction, rate control, and rate-distortion optimization. CONSTITUTION: An encoder encodes unit information of an encoding target unit(110). A quantization parameter determining unit determines the quantization parameter of the encoding target unit based on the unit information of the encoding target unit(120). The encoder performs entropy encoding in one of a sequence parameter set, a picture parameter set, and a slice header.
Abstract translation: 目的：提供一种图像编码和解码方法及其装置，以根据编码目标单元的单位信息自适应地设置量化参数，从而有效地执行量化，去块滤波，熵编码/解码，运动预测，速率控制 和速率失真优化。 构成：编码器对编码对象单元（110）的单位信息进行编码。 量化参数确定单元基于编码目标单元（120）的单位信息来确定编码目标单元的量化参数。 编码器在序列参数集，图像参数集和片头之一中执行熵编码。
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公开(公告)号：KR1020120016986A
公开(公告)日：2012-02-27
申请号：KR1020110025572
申请日：2011-03-22
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/124 , H04N19/119 , H04N19/14 , H04N19/176 , H04N19/196 , H04N19/33 , H04N19/463 , H04N19/70
Abstract: PURPOSE: An image encoding and decoding method and a device thereof are provided to efficiently perform quantization, de-blocking filtering, entropy encoding/decoding, motion prediction, rate control, and rate-distortion optimization, thereby increasing encoding and decoding performance. CONSTITUTION: An encoding unit encodes unit information of an encoding target unit(110). A quantization parameter determining unit determines a quantization parameter of an encoding target unit based on unit information of the encoding target unit. A remaining quantization parameter determining unit determines a remaining quantization parameter based on a predicted quantization parameter and the quantization parameter of the encoding target unit. The encoding unit encodes the determined remaining quantization parameter(130).
Abstract translation: 目的：提供图像编码和解码方法及其装置，以有效地执行量化，去块滤波，熵编码/解码，运动预测，速率控制和速率失真优化，从而增加编码和解码性能。 构成：编码单元对编码对象单元（110）的单位信息进行编码。 量化参数确定单元基于编码目标单元的单位信息来确定编码目标单元的量化参数。 剩余量化参数确定单元基于预测量化参数和编码目标单元的量化参数来确定剩余量化参数。 编码单元对所确定的剩余量化参数进行编码（130）。
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