公开(公告)号：US08503522B2

公开(公告)日：2013-08-06

申请号：US13125254

申请日：2009-10-14

申请人： Hayoon Kim ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

发明人： Hayoon Kim ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

IPC分类号： H04N11/02

CPC分类号： H04N19/567 ,  H04N19/583

摘要： The present disclosure provides an adaptive overlapped block motion compensation apparatus employing adaptive weights including: an RBMC(x,y) calculator for calculating residual signal RBMC(x,y) in block motion estimation; a DN(x,y) calculator for calculating differential pixel value DN(x,y) between a motion compensated block generated by a motion vector of an adjacent block and a currently motion compensated block; a unit for updating and setting additional information for performing an adaptive overlapped block motion compensation based on RBMC(x,y) and DN(x,y); and an adaptive overlapped block motion compensation operating on respective pixels in certain pixel units based on the additional information, progressing to subsequent pixels if an absolute value of RBMC(x,y) is not greater than the additional information, and if the absolute value of RBMC(x,y) is greater than the additional information, calculating an ROBMC(x,y) with an HN(x,y) selectively signed so that an absolute value of ROBMC(x,y) is smaller than the absolute value of RBMC(x,y).

摘要翻译： 本公开提供一种采用自适应权重的自适应重叠块运动补偿装置，包括：用于在块运动估计中计算残差信号RBMC（x，y）的RBMC（x，y）计算器; 用于计算由相邻块的运动矢量生成的运动补偿块和当前运动补偿块之间的差分像素值DN（x，y）的DN（x，y）计算器; 用于更新和设置用于基于RBMC（x，y）和DN（x，y）执行自适应重叠块运动补偿的附加信息的单元; 以及基于附加信息在某些像素单元中对各个像素进行自适应重叠块运动补偿，如果RBMC（x，y）的绝对值不大于附加信息，则前进到后续像素，并且如果绝对值 RBMC（x，y）大于附加信息，计算具有选择性符号的HN（x，y）的ROBMC（x，y），使得ROBMC（x，y）的绝对值小于 RBMC（x，y）。

公开(公告)号：US08811469B2

公开(公告)日：2014-08-19

申请号：US13143324

申请日：2009-12-29

申请人： Hayoon Kim ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim ,  Junhyuk Ahn

发明人： Hayoon Kim ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim ,  Junhyuk Ahn

IPC分类号： H04N7/32 ,  H04N7/36 ,  H04N7/26 ,  H04N7/34 ,  H04N13/00

CPC分类号： H04N7/345 ,  H04N19/103 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/51 ,  H04N19/593

摘要： The present disclosure relates to method and apparatus for block mode encoding/decoding and a method and apparatus for video encoding/decoding using the same. The disclosure provides a block mode encoding apparatus that predicts the block mode of a current block and encodes the block mode of the current block depending on whether the block mode of the current block is same as the block mode predicted, to output encoded mode information. The disclosure can reduce the quantity of bits used to encode information on the block mode, thus enhancing the efficiency of video compression.

摘要翻译： 本发明涉及块模式编码/解码的方法和装置，以及使用该方法和装置进行视频编码/解码的方法和装置。 本公开提供一种块模式编码装置，其根据当前块的块模式是否与预测的块模式相同，预测当前块的块模式并对当前块的块模式进行编码，以输出编码模式信息。 本公开可以减少用于在块模式上编码信息的比特数量，从而提高视频压缩的效率。

公开(公告)号：US20110206114A1

公开(公告)日：2011-08-25

申请号：US13123693

申请日：2009-10-06

申请人： Hayoon Kim ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim ,  Byongho Kim

发明人： Hayoon Kim ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim ,  Byongho Kim

IPC分类号： H04N7/26

CPC分类号： H04N7/363 ,  H04N19/583

摘要： The present disclosure relates to a video encoding/decoding apparatus, and apparatus and method for adaptive overlapped block motion compensation by variable units for same. The apparatus and the method for adaptive overlapped block motion compensation by variable units, according to the present disclosure, when conducting a motion compensation, enable an encoder to perform an adaptive overlapped block motion compensation for a plurality of predetermined scan modes and sampling modes, and enable the encoder to calculate the computation volume occurring in said compensation and residual pixel energy, estimate the performance for each mode based on the calculation, determine an optimum scan mode and an optimum sampling mode, thus enabling a decoder to perform a motion compensation with optimum performance and less computing volume based on the determined mode.

摘要翻译： 本公开涉及一种视频编码/解码装置，以及用于通过可变单元进行自适应重叠块运动补偿的装置和方法。 根据本公开的可变单元的自适应重叠块运动补偿的装置和方法当进行运动补偿时，使得编码器能够对多个预定扫描模式和采样模式执行自适应重叠块运动补偿，以及 使编码器能够计算在所述补偿和残余像素能量中发生的计算量，基于计算估计每个模式的性能，确定最佳扫描模式和最佳采样模式，从而使解码器能够以最佳的方式执行运动补偿 基于确定模式的性能和较少的计算量。

公开(公告)号：US20110182358A1

公开(公告)日：2011-07-28

申请号：US13055671

申请日：2009-07-16

申请人： Hayoon Kim ,  Yoonsik Choe ,  Yonggoo Kim ,  Yungho Choi ,  Jinwoo Jung ,  Byongho Kim

发明人： Hayoon Kim ,  Yoonsik Choe ,  Yonggoo Kim ,  Yungho Choi ,  Jinwoo Jung ,  Byongho Kim

IPC分类号： H04N11/02

CPC分类号： H04N19/635

摘要： The present disclosure relates to a wavelet transform apparatus and method based on a prediction-update lifting scheme, and an adaptive prediction apparatus and method and a recording medium for the same. The disclosure comprises the steps of: setting first updated even polyphase samples influenced when being updated from corresponding odd polyphase samples, setting plural candidate groups for prediction direction based on the set first updated even polyphase samples, selecting a first prediction direction from the candidate groups to minimize the energy in a high band, obtaining a first prediction value based on the first prediction direction and the updated even polyphase samples corresponding to the first prediction direction, and obtaining residual odd polyphase samples by deducting the first prediction value from the corresponding odd polyphase samples. Therefore, the present disclosure is able to increase encoding efficiency by minimizing energy transfer to a high band signal when removing the spatial correlation within an image using a directional wavelet transform designed based on the prediction-update lifting scheme.

摘要翻译： 本发明涉及一种基于预测更新提升方案的小波变换装置和方法，以及用于其的自适应预测装置和方法以及记录介质。 本公开包括以下步骤：设置当从相应的奇数多相样本更新时受影响的第一更新均匀多相样本，基于所设置的第一更新均匀多相样本设置用于预测方向的多个候选组，从候选组中选择第一预测方向 使高频段的能量最小化，根据与第一预测方向对应的第一预测方向和更新的均匀多相采样获得第一预测值，并通过从相应的奇数多相样本中减去第一预测值来获得残差奇数多相样本 。 因此，本公开能够通过使用基于预测更新提升方案设计的定向小波变换去除图像内的空间相关性来最小化对高频带信号的能量传递的编码效率。