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公开(公告)号：KR1020130110128A
公开(公告)日：2013-10-08
申请号：KR1020130109465
申请日：2013-09-12
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-encoding and intra-decoding method and a device thereof are provided to use a super macro block based intra-encoding method and a device which is not used in existing intra-encoding. CONSTITUTION: An intra-encoding and intra-decoding device includes an intra-prediction unit (930) which determines to divide a first block into four second blocks, and performs intra-prediction for the first block or the four second blocks based on the determination; a transcoding unit (950) which performs transcoding for a differential block generated based on an intra-prediction result; a quantizer (960) which quantizes the output of the transcoding unit; and an entropy encoder (970) which produces bitstream by performing entropy encoding for the output of the quantizer. [Reference numerals] (910) Motion prediction unit; (920) Motion compensation unit; (930) Intra-prediction unit; (950) Transcoding unit; (960) Quantizer; (970) Entropy encoder; (AA) Super macro block or m macro blocks; (BB) Reference block; (CC) Bit stream
Abstract translation: 目的：提供帧内编码和帧内解码方法及其装置，以使用基于超宏块的帧内编码方法和不用于现有帧内编码的装置。 内部编码和帧内解码装置包括帧内预测单元（930），其确定将第一块划分为四个第二块，并且基于该确定对第一块或第四块进行帧内预测 ; 对基于帧内预测结果生成的差分块执行代码转换的代码转换单元（950）; 量化器（960），其对所述代码转换单元的输出进行量化; 以及通过对量化器的输出执行熵编码来产生比特流的熵编码器（970）。 （附图标记）（910）运动预测单元; （920）运动补偿单元; （930）预测内部单元; （950）代码转换单元; （960）量化器; （970）熵编码器; （AA）超宏块或m宏块; （BB）参考块; （CC）位流
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公开(公告)号：KR1020130110124A
公开(公告)日：2013-10-08
申请号：KR1020130109449
申请日：2013-09-12
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/107 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/13 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/1887 , H04N19/196 , H04N19/50 , H04N19/52 , H04N19/521 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: PURPOSE: The present invention is to provide an image encoding method and apparatus capable of improving efficiency of encoding/decoding of image, an image decoding method and apparatus, an intra prediction method and apparatus, an intra prediction mode encoding method and apparatus and an intra prediction mode decoding method and apparatus. CONSTITUTION: An image encoding apparatus comprises, a prediction part which determines an intra prediction mode for a unit to be encoded, derives peripheral prediction mode information from a left peripheral prediction mode and an upper peripheral prediction mode and encodes the intra prediction mode for the unit to be encoded by using the derived peripheral prediction information, wherein the left peripheral prediction mode is an intra prediction mode of a left peripheral unit adjacent to the left of the unit to be encoded, the upper peripheral prediction mode is an intra prediction mode of an upper peripheral unit adjacent to the upper side of the unit to be encoded, and the peripheral prediction mode information comprises a mode number of the left peripheral prediction mode and a mode number of the upper peripheral prediction mode. [Reference numerals] (S1310) Peripheral prediction mode information estimation; (S1320) Intra prediction mode decoding using the peripheral prediction mode information
Abstract translation: 目的：提供一种能够提高图像编码/解码效率的图像编码方法和装置，图像解码方法和装置，帧内预测方法和装置，帧内预测模式编码方法和装置以及帧内预测方法 预测模式解码方法和装置。 构成：图像编码装置包括：确定要编码的单元的帧内预测模式的预测部，从左周边预测模式和上周期预测模式导出周边预测模式信息，并对该单元的帧内预测模式进行编码 通过使用导出的外围预测信息进行编码，其中左周边预测模式是与要编码的单位的左侧相邻的左侧周边单元的帧内预测模式，上部周围预测模式是帧内预测模式 与要编码的单元的上侧相邻的上周边单元，并且周边预测模式信息包括左周预测模式的模式号和上周期预测模式的模式号。 （附图标记）（S1310）外围预测模式信息估计; （S1320）使用周边预测模式信息的帧内预测模式解码
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公开(公告)号：KR1020130106342A
公开(公告)日：2013-09-27
申请号：KR1020130109467
申请日：2013-09-12
Applicant: 한국전자통신연구원
IPC: H04N19/593 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/91 , H04N19/124 , H04N19/13 , H04N19/119 , H04N19/122 , H04N19/105 , H04N19/174
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 , H04N19/593 , H04N19/124 , H04N19/13 , H04N19/174
Abstract: PURPOSE: An image encoding method and a computer-readable recording medium are provided to use a super macro block for an intra-encoding process, thereby improving an encoding performance. CONSTITUTION: An image encoding device includes a motion predictor (910), a motion compensator (920), an intra-predictor (930), a coupler (940), a conversion encoder (950), a quantizer (960), and an entropy encoder (970). The intra-predictor receives a super macro block with a size of 16nx16n (n is a natural number over two), and implements intra-prediction on the super macro block. The coupler obtains a difference between a predicted block generated by the intra-predictor and the super macro block, and then generates a differential block. [Reference numerals] (910) Motion predictor; (920) Motion compensator; (930) Intra-predictor; (950) Conversion encoder; (960) Quantizer; (970) Entropy encoder; (AA) Super macro block or m macro blocks; (BB) Reference block; (CC) Bit stream
Abstract translation: 目的：提供图像编码方法和计算机可读记录介质，以使用超宏块进行内编码处理，从而提高编码性能。 构成：图像编码装置包括运动预测器（910），运动补偿器（920），预测器内（930），耦合器（940），转换编码器（950），量化器（960）和 熵编码器（970）。 内部预测器接收大小为16n×16n的超宏块（n为2以上的自然数），并在超宏块上实现帧内预测。 耦合器获得由预测器产生的预测块与超宏块之间的差，然后生成差分块。 （参考数字）（910）运动预测器; （920）运动补偿器; （930）预测因子; （950）转换编码器; （960）量化器; （970）熵编码器; （AA）超宏块或m宏块; （BB）参考块; （CC）位流
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公开(公告)号：KR1020130062973A
公开(公告)日：2013-06-13
申请号：KR1020130060132
申请日：2013-05-28
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/52 , H04N19/172 , H04N19/176 , H04N19/513
Abstract: PURPOSE: An encoding/decoding device and a method thereof for predicting an arbitrary motion vector are provided to consider a motion vector of a neighboring vector and a previous motion vector by scaling vector information of a motion vector of a neighboring vector and a previous motion vector. CONSTITUTION: When predicting an arbitrary motion vector in a current block within an image, the prediction is performed by using vector information of a motion vector corresponding to a neighboring vector and vector information of a previous motion vector of a current vector(S10). A differential determination unit determines differential information with respect to a motion vector of the current block based on the motion vector predicted by a motion vector prediction unit and an actual motion vector of the current block(S20). [Reference numerals] (AA) Start; (BB) Finish; (S10) Current vector; (S20) Current block
Abstract translation: 目的：提供一种用于预测任意运动矢量的编码/解码装置及其方法，通过缩放相邻矢量和先前运动矢量的运动矢量的矢量信息来考虑相邻矢量和先前运动矢量的运动矢量 。 构成：当预测图像内的当前块中的任意运动矢量时，通过使用与相邻矢量相对应的运动矢量的矢量信息和当前矢量的先前运动矢量的向量信息来执行预测（S10）。 差分确定单元基于由运动矢量预测单元预测的运动矢量和当前块的实际运动矢量来确定关于当前块的运动矢量的差分信息（S20）。 （附图标记）（AA）开始; （BB）完成; （S10）电流矢量; （S20）当前块
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公开(公告)号：KR1020130062972A
公开(公告)日：2013-06-13
申请号：KR1020130060131
申请日：2013-05-28
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/52 , H04N19/172 , H04N19/176 , H04N19/513
Abstract: PURPOSE: An encoding/decoding device and a method thereof for predicting an arbitrary motion vector are provided to consider a motion vector of a neighboring vector and a previous motion vector by scaling vector information of a motion vector of a neighboring vector and a previous motion vector. CONSTITUTION: When predicting an arbitrary motion vector in a current block within an image, the prediction is performed by using one or more vector information of a motion vector corresponding to a neighboring vector and vector information of a previous motion vector of a current vector(S10). The motion vector of the current block is calculated by adding a predicted motion vector based on differential information of the current block(S20). [Reference numerals] (AA) Start; (BB) Finish; (S10) Current vector; (S20) Current block
Abstract translation: 目的：提供一种用于预测任意运动矢量的编码/解码装置及其方法，通过缩放相邻矢量和先前运动矢量的运动矢量的矢量信息来考虑相邻矢量和先前运动矢量的运动矢量 。 构成：当预测图像内的当前块中的任意运动矢量时，通过使用与相邻矢量相对应的运动矢量的一个或多个矢量信息和当前矢量的先前运动矢量的矢量信息（S10 ）。 通过根据当前块的差分信息相加预测的运动矢量来计算当前块的运动矢量（S20）。 （附图标记）（AA）开始; （BB）完成; （S10）电流矢量; （S20）当前块
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Patent Agency Ranking
公开(公告)号：KR1020130056272A
公开(公告)日：2013-05-29
申请号：KR1020130055777
申请日：2013-05-16
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/184 , H04N19/13
Abstract: PURPOSE: An encoding and decoding method using adaptive bit depth reduction and a device thereof are provided to prevent an image from being encoded at an excessive bit depth by adaptively selecting and performing bit depth reduction by macro block unit. CONSTITUTION: An encoding device includes a bit depth control unit(110), a bit depth reducing unit(120), a bit depth quantization unit(130), and a bit depth increasing unit(140). When the bit depth control unit determines the bit depth reduction of an input signal, the bit depth reducing unit reduces a bit depth of the input signal. The bit depth reducing unit shifts the bit depth as much as a selected value to reduce the bit depth or reduces the bit depth by using a mapping table. [Reference numerals] (110) Bit depth control unit; (120) Bit depth reducing unit; (130) Bit depth quantization unit; (140) Bit depth increasing unit; (AA) Input video signal; (BB) Infra-frame prediction; (CC) Motion correction; (DD) Motion estimation; (EE) Conversion; (FF) De-blocking filter; (GG) Entropy encoding
Abstract translation: 目的：提供一种使用自适应比特深度减少的编码和解码方法及其装置，以通过以宏块单位自适应地选择和执行比特深度降低来防止图像被编码在过度比特深度。 构成：编码装置包括比特深度控制单元（110），比特深度减少单元（120），比特深度量化单元（130）和比特深度增加单元（140）。 当位深度控制单元确定输入信号的位深度降低时，位深度降低单元减小输入信号的位深度。 比特深度减少单元将比特深度移动到选择的值以减少比特深度或通过使用映射表来减少比特深度。 （附图标记）（110）位深度控制单元; （120）位深度减少单元; （130）比特深度量化单元; （140）位深度增加单位; （AA）输入视频信号; （BB）帧内预测; （CC）运动校正; （DD）运动估计; （EE）转换; （FF）去块过滤器; （GG）熵编码
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公开(公告)号：KR1020130055773A
公开(公告)日：2013-05-29
申请号：KR1020110121379
申请日：2011-11-21
Applicant: 한국전자통신연구원
IPC: H04N19/105 , H04N19/103 , H04N19/50
CPC classification number: H04N19/00266 , H04N19/105 , H04N19/139 , H04N19/146 , H04N19/159 , H04N19/172
Abstract: PURPOSE: A coding method and device are provided to determine coding removal, thereby efficiently reducing calculation complexity. CONSTITUTION: A coding device collects at least one of coding information of a reference unit or coding information of an upper unit(510). The coding device determines removal of a prediction coding process for a current coding unit or a current prediction unit and performs prediction coding(520). [Reference numerals] (510) Collect coding information of a reference unit or an upper unit; (520) Determine the omission of a coding process for a coding unit or a prediction unit by using the collected coding information and perform a prediction coding process; (AA) Start; (BB) End
Abstract translation: 目的：提供编码方法和装置，以确定编码移除，从而有效降低计算复杂度。 构成：编码装置收集参考单元的编码信息或上位单元（510）的编码信息中的至少一个。 编码装置确定对当前编码单位或当前预测单元的预测编码处理的去除，并执行预测编码（520）。 （附图标记）（510）收集参考单元或上位单元的编码信息; （520）通过使用所收集的编码信息确定编码单元或预测单元的编码处理的省略并执行预测编码处理; （AA）开始; （BB）结束
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公开(公告)号：KR1020130042429A
公开(公告)日：2013-04-26
申请号：KR1020120044609
申请日：2012-04-27
Applicant: 한국전자통신연구원
CPC classification number: H04N7/088 , H04N5/0675 , H04N21/235 , H04N21/2365 , H04N21/242 , H04N21/816
Abstract: PURPOSE: A device for synchronizing an image by adding synchronization information to a sub data space of a video signal and a method thereof are provided to synchronize images corresponding to the video signal by adding the synchronization information to the sub data space. CONSTITUTION: A synchronization information adding device(100) includes a synchronization information generating unit(210) and a synchronization information adding unit(220). The synchronization information generating unit generates synchronization information including a time code based on play time of a video frame or reception time of a video signal. The synchronization information adding unit adds the synchronization information to a sub data space of the video signal. [Reference numerals] (100) Synchronization information adding device; (210) Synchronization information generating unit; (220) Synchronization information adding unit;
Abstract translation: 目的：提供一种通过将同步信息添加到视频信号的子数据空间来同步图像的装置及其方法，用于通过将同步信息添加到子数据空间来同步对应于视频信号的图像。 构成：同步信息添加装置（100）包括同步信息生成部（210）和同步信息添加部（220）。 同步信息生成单元生成包括基于视频帧的播放时间或视频信号的接收时间的时间码的同步信息。 同步信息添加单元将同步信息添加到视频信号的子数据空间。 （附图标记）（100）同步信息添加装置; （210）同步信息生成部; （220）同步信息添加单元;
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公开(公告)号：KR1020120139642A
公开(公告)日：2012-12-27
申请号：KR1020120130490
申请日：2012-11-16
Applicant: 한국전자통신연구원
IPC: H04N19/105 , H04N19/11
CPC classification number: H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
Abstract: PURPOSE: An adaptive image encoding device and a method thereof are provided to improve the performance of image compression by adaptively selecting an encoding parameter. CONSTITUTION: An adaptive image encoding device determines a reference block for encoding a current block(S110). The adaptive image encoding device determines an encoding parameter of the reference block(S120). The adaptive image encoding device determines a characteristic of the reference block(S130). The adaptive image encoding device adaptively encodes the current block by using the encoding parameter(S140). [Reference numerals] (AA) Start; (BB) End; (S110) Determining a reference block; (S120) Determining a encoding parameter of the reference block; (S130) Determining a feature of the reference block; (S140) Encoding an encoding target block
Abstract translation: 目的：提供自适应图像编码装置及其方法，以通过自适应地选择编码参数来提高图像压缩的性能。 构成：自适应图像编码装置确定用于对当前块进行编码的参考块（S110）。 自适应图像编码装置确定参考块的编码参数（S120）。 自适应图像编码装置确定参考块的特性（S130）。 自适应图像编码装置通过使用编码参数自适应地编码当前块（S140）。 （附图标记）（AA）开始; （BB）结束; （S110）确定参考块; （S120）确定参考块的编码参数; （S130）确定参考块的特征; （S140）对编码对象块进行编码
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公开(公告)号：KR1020120100839A
公开(公告)日：2012-09-12
申请号：KR1020120022551
申请日：2012-03-05
Applicant: 한국전자통신연구원
IPC: H04N19/60 , H04N19/13 , H04N19/103
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
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