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公开(公告)号：KR1020090090152A
公开(公告)日：2009-08-25
申请号：KR1020080015452
申请日：2008-02-20
Applicant: 삼성전자주식회사
IPC: H04N19/51
CPC classification number: H04N19/105 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/61
Abstract: An image encoding/decoding method and an apparatus thereof for encoding residual value of the input current block and compensated prediction block are provided to generate the compensated predicted block by compensating the compensation value. A predicting unit(110) produces a predicted block about a current block. A compensation value calculator(120) calculates the compensation value. The compensation value is the difference between the mean value of the pixels within the predicted block and the mean value of the pixel within the current block. A prediction block compensator(130) compensates for the predicted block. An encoding performer(150) encodes the difference of the current block and compensated predicted block. The coding performing unit adds the information toward the denotation of the compensation value to the bit stream generated to the result of the coding.
Abstract translation: 提供用于编码输入当前块和补偿预测块的残差值的图像编码/解码方法及其装置，以通过补偿补偿值来产生补偿预测块。 预测单元（110）产生关于当前块的预测块。 补偿值计算器（120）计算补偿值。 补偿值是预测块中的像素的平均值与当前块内的像素的平均值之间的差。 预测块补偿器（130）补偿预测块。 编码执行器（150）对当前块和补偿预测块的差进行编码。 编码执行单元将针对补偿值的表示的信息添加到对编码结果生成的比特流。
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公开(公告)号：KR1020090090151A
公开(公告)日：2009-08-25
申请号：KR1020080015451
申请日：2008-02-20
Applicant: 삼성전자주식회사
IPC: H04N19/51 , H04N19/105
CPC classification number: H04N19/17 , H04N19/105 , H04N19/109 , H04N19/61
Abstract: An inter prediction encoding/decoding method and an apparatus thereof using an image recovery for performing image recovery by searching a reference picture are provided to generate the correct predicted block by protecting a current block based on a prediction block. An image recovery unit(212) searches one or more reference picture by using pixels included in an encoded domain. The image recovery is performed through search. A predicting unit(214) produces the predicted block of the current block based on the return result. An encoding unit(220) encodes the current block based on the prediction block. A sample based image recovery is performed by searching the reference picture.
Abstract translation: 提供帧间预测编码/解码方法及其使用通过搜索参考图像进行图像恢复的图像恢复的装置，以通过基于预测块保护当前块来生成正确的预测块。 图像恢复单元（212）通过使用包括在编码域中的像素搜索一个或多个参考图片。 通过搜索进行图像恢复。 预测单元（214）基于返回结果产生当前块的预测块。 编码单元（220）基于预测块对当前块进行编码。 通过搜索参考图片来执行基于样本的图像恢复。
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公开(公告)号：KR1020090061249A
公开(公告)日：2009-06-16
申请号：KR1020070128188
申请日：2007-12-11
Applicant: 삼성전자주식회사
IPC: H04N19/124 , H04N19/132
CPC classification number: H04N19/93 , H04N19/126 , H04N19/134 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/86
Abstract: A quantization method and device, and a reverse quantization method and device are provided to determine a quantization step for quantization of conversion coefficients by considering run length, thereby reducing a bit quantity without large deterioration of picture quality. Conversion coefficients within a conversion block of predetermined size are arrayed according to predetermined scanning order(410). A run indicative of the number of conversion coefficients which have number 0 and are located before conversion coefficients which do not have the number 0 is counted(420). A quantization step for quantization of the conversion coefficients which do not have the number 0 is determined by using the run(430). The quantization step for the quantization of the conversion coefficients is determined in proportion to the run.
Abstract translation: 提供量化方法和装置以及逆量化方法和装置，以通过考虑游程长度来确定用于量化转换系数的量化步长，从而减少位数而不会使图像质量大幅度恶化。 根据预定的扫描顺序排列预定尺寸的转换块内的转换系数（410）。 计算表示具有数字0并且位于不具有数字0的转换系数之前的转换系数的数量的运行（420）。 通过使用行程（430）来确定不具有数字0的转换系数的量化的量化步骤。 与运行成比例地确定用于量化转换系数的量化步长。
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公开(公告)号：KR1020080110171A
公开(公告)日：2008-12-18
申请号：KR1020070058580
申请日：2007-06-14
Applicant: 삼성전자주식회사
CPC classification number: H04N19/182 , H04N19/11 , H04N19/14 , H04N19/176 , H04N19/593 , H04N19/61
Abstract: A method and an apparatus for encoding and decoding are provided to improve encoding compression efficiency by performing intra prediction exactly. An intra prediction encoding method comprises following steps. A current block is predicted by performing image restoration based on pixels of previously encoded area which are adjacent to the previously encoded area, and current block(810). A residual block about the current block is generated by subtracting current block from the prediction block generated by the prediction result(820). Therefore, encoding compression is efficiently performed by improving exactness of intra prediction.
Abstract translation: 提供了一种用于编码和解码的方法和装置，以通过精确地执行帧内预测来提高编码压缩效率。 帧内预测编码方法包括以下步骤。 通过基于与先前编码区域相邻的先前编码区域的像素执行图像恢复以及当前块（810）来预测当前块。 通过从由预测结果生成的预测块中减去当前块来产生关于当前块的残差块（820）。 因此，通过提高帧内预测的精确度来有效地执行编码压缩。
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公开(公告)号：KR1020080073157A
公开(公告)日：2008-08-08
申请号：KR1020070011821
申请日：2007-02-05
Applicant: 삼성전자주식회사
IPC: H04N19/51 , H04N19/176
CPC classification number: H04N19/593 , H04N19/51 , H04N19/61
Abstract: A method and an apparatus for encoding and decoding based on inter prediction are provided to encode only inter predicted residue, a difference value between the intra predicted residues of the current and reference blocks, thereby reducing the size of the residues to improve the compression rate of image encoding. A method for encoding based on inter prediction comprises the following steps of: searching for reference pictures to determine reference blocks corresponding to the current block and estimating the motion vector of the current block based on the searching result(410); performing intra prediction for the current block and each of the reference blocks and generating a difference value between the intra predicted residues of the current block and each reference block generated as the intra prediction result(420); and encoding the current block based on the estimated motion vector and the generated difference value(430).
Abstract translation: 提供了一种用于基于帧间预测的编码和解码的方法和装置，以仅编码帧间预测残差，即当前参考块的帧内预测残差之间的差值，从而减小残差大小以提高压缩率 图像编码。 基于帧间预测的编码方法包括以下步骤：搜索参考图片以确定与当前块相对应的参考块，并基于搜索结果估计当前块的运动矢量（410）。 对当前块和每个参考块执行帧内预测，并产生当前块的帧内预测残差与作为帧内预测结果生成的每个参考块之间的差值（420）; 以及基于所估计的运动矢量和所生成的差值对当前块进行编码（430）。
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Patent Agency Ranking
公开(公告)号：KR1020080068278A
公开(公告)日：2008-07-23
申请号：KR1020070005807
申请日：2007-01-18
Applicant: 삼성전자주식회사
CPC classification number: H04N19/11 , H04N19/159 , H04N19/176 , H04N19/197 , H04N19/51
Abstract: A method and an apparatus for encoding and decoding based on intra prediction are provided to predict and determine the intra prediction direction of a current block based on the intra prediction direction of a reference block to improve probability that information about the intra prediction direction is compressed, thereby improving the compression rate of image data encoding. A method for encoding based on intra prediction comprises the following steps of: determining the intra prediction direction of a reference block which moves as much as N pixels in an x-axial direction and M pixels in a y-axial direction from a current block(810); predicting the intra prediction direction of the current block on the basis of the intra prediction direction of the determined reference block(820); determining the intra prediction direction of the current block(830); and performing the intra prediction encoding of the current block on the basis of the predicted intra prediction direction and the determined intra prediction direction(840).
Abstract translation: 提供了一种基于帧内预测的编码和解码方法和装置，用于基于参考块的帧内预测方向来预测和确定当前块的帧内预测方向，以提高关于帧内预测方向的信息被压缩的概率， 从而提高图像数据编码的压缩率。 基于帧内预测的编码方法包括以下步骤：确定参考块的帧内预测方向，所述参考块在x轴方向上移动多达N个像素，并且从当前块移动到y轴方向上的M个像素（ 810）; 基于所确定的参考块（820）的帧内预测方向，预测当前块的帧内预测方向; 确定当前块的帧内预测方向（830）; 根据预测的帧内预测方向和确定的帧内预测方向，执行当前块的帧内预测编码（840）。
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77.发明公开
公开(公告)号：KR1020080064010A
公开(公告)日：2008-07-08
申请号：KR1020070000709
申请日：2007-01-03
Applicant: 삼성전자주식회사
IPC: H04N19/527
CPC classification number: H04N19/51 , H04N19/527 , H04N19/61
Abstract: A motion compensating method sequentially using global and local motion compensation, a decoding method, an apparatus thereof, an encoder and a decoder are provided to perform global motion compensation and perform local motion compensation by applying local motion information to a reference block where the global motion compensation is performed. A motion compensating method comprises the following steps of: extracting global motion information of a reference block(S401); performing global motion compensation by applying the extracted global motion information to the reference block; extracting local motion information of the reference block where the global motion compensation is performed(S402); and performing local motion compensation by applying the local motion information to the reference block where the global motion compensation is performed.
Abstract translation: 提供顺序使用全局和局部运动补偿的运动补偿方法，解码方法，装置，编码器和解码器，以执行全局运动补偿，并通过将局部运动信息应用于全局运动 进行补偿。 运动补偿方法包括以下步骤：提取参考块的全局运动信息（S401）; 通过将提取的全局运动信息应用于参考块来执行全局运动补偿; 提取执行全局运动补偿的参考块的局部运动信息（S402）; 以及通过将局部运动信息应用于执行全局运动补偿的参考块来执行局部运动补偿。
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公开(公告)号：KR100834748B1
公开(公告)日：2008-06-05
申请号：KR1020040003985
申请日：2004-01-19
Applicant: 삼성전자주식회사
IPC: H04N19/30 , H04N19/162
CPC classification number: H04N5/783 , H04N9/8042
Abstract: 본 발명은 스케일러블 비디오 스트림 재생 방법 및 장치에 관한 것으로서, 시간적 스케일러빌리티를 갖는 비디오 스트림이 시간적 레벨에 유연한 특성을 이용하여 비디오 스트리밍 서비스를 통해 제공되는 멀티미디어 데이터의 빠른 검색이 가능하도록 하는 것을 주 목적으로 한다.
이를 위해 본 발명의 일 실시 예에 따른 스케일러블 비디오 스트림 재생 장치는 소정의 비트 스트림에 대해 소정의 재생 속도가 선택되면 선택된 재생 속도를 설정하는 재생 속도 설정부, 재생 속도 설정부에 의해 설정된 재생 속도에 대응되는 시간적 레벨을 결정하고, 결정된 시간적 레벨에 따라 디코딩되어야할 프레임을 결정하는 제어부, 및 디코딩되는 프레임을 타이밍 신호를 이용해 원 비디오 신호의 프레임 레이트에 동기화 시키는 타이밍 동기화부를 포함하는 것을 특징으로 한다.
스케일러빌리티, 비디오 스트림, 재생, 시간적 레벨-
公开(公告)号：KR1020080041541A
公开(公告)日：2008-05-13
申请号：KR1020070022583
申请日：2007-03-07
Applicant: 삼성전자주식회사
IPC: H04N19/51 , H04N19/176
CPC classification number: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/61
Abstract: A method and an apparatus for encoding/decoding an image based on the inter prediction are provided to use the correlation between I(Intra) pictures and adjacent pictures simultaneously, thereby increasing the compression ratio of the image encoding. An extraction member(270) extracts intra prediction encoded blocks included to other pictures encoded previously. A prediction member predicts the present block from the extracted blocks. An encoding member(230) encodes the present blocks on the basis of the prediction. The pictures are the pictures included into the same GOP(Group Of Picture) as the present picture including the present block. The present blocks are predicted from the extracted blocks and I(Intra) picture included into the GOP. The extraction member extracts the number N blocks with the low compression rate among the Intra-prediction-encoded blocks included into the pictures.
Abstract translation: 提供了一种基于帧间预测对图像进行编码/解码的方法和装置，以便同时使用I（Intra）图像和相邻图像之间的相关性，从而增加图像编码的压缩比。 抽取构件（270）提取包括在先前编码的其他图像的帧内预测编码块。 预测成员从提取的块中预测当前块。 编码构件（230）基于预测对当前块进行编码。 图像是包括在包括当前块的当前图像的相同GOP（图像组）中的图像。 从块中提取的块和包括在GOP中的I（Intra）图像预测当前块。 提取部件在包含在图像中的预测编码块内提取具有低压缩率的数量N个块。
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80.发明授权
公开(公告)号：KR100809296B1
公开(公告)日：2008-03-04
申请号：KR1020060053130
申请日：2006-06-13
Applicant: 삼성전자주식회사
IPC: H04N19/30 , H04N19/172 , H04N19/103
CPC classification number: H04N19/33 , H04N19/112 , H04N19/159 , H04N19/16 , H04N19/176 , H04N19/513 , H04N19/61
Abstract: 본 발명은 타입이 일치하지 않는 하위 계층의 정보를 사용하여 인터레이스 비디오 신호를 인코딩/디코딩 하는 방법 및 장치에 관한 발명으로서 본 발명의 일 실시예에 따른 인코딩 방법은 인터레이스 방식으로 코딩된 매크로블록이 포함된 다계층 비디오 신호를 인코딩하는 방법에 있어서, 현재 계층의 매크로블록 한 쌍이 프레임 타입이며, 하위 계층의 해당 매크로블록 한 쌍이 필드 타입인지 검토하는 단계, 및 상기 하위 계층의 매크로블록 한 쌍이 필드타입이며, 상기 하위 계층의 해당 매크로블록 한 쌍의 상위 매크로블록과 하위 매크로블록이 서로 다른 매크로블록 모드로 코딩된 경우, 상기 상위 매크로블록 또는 하위 매크로블록의 정보를 보간하여 상기 현재 계층의 매크로블록을 예측하여 인코딩하는 단계를 포함한다.
인터레이스 비디오, 인코딩, 필드, 프레임, 잔차, 모션 예측
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