公开(公告)号：US08462023B2

公开(公告)日：2013-06-11

申请号：US13063784

申请日：2009-09-09

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

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

IPC分类号： H03M7/00

CPC分类号： H03M7/30

摘要： An encoding method and encoding apparatus for B-transform, and encoded data for same are provided. The apparatus is for encoding input data and includes: a B-transform unit for performing a B-transform on the input data to generate a binary expression; and an encoder for removing one or more binary symbols from the binary expression and scanning the binary expression with the one or more binary symbols removed to generate a bitstream. According to the method and apparatus, it is possible to encode uniform distribution data efficiently, and using the B-transform by its characteristics for reducing the bit number in the generation of the binary expressions from the B-transform operation on the uniform distribution data enhances the data compression performance.

摘要翻译： 提供了一种用于B变换的编码方法和编码装置，以及用于其的编码数据。 该装置用于编码输入数据，并包括：B变换单元，用于对输入数据执行B变换以产生二进制表达式; 以及用于从二进制表达式中去除一个或多个二进制符号并且用去除了一个或多个二进制符号扫描二进制表达式以生成比特流的编码器。 根据该方法和装置，可以有效地对均匀分布数据进行编码，并且通过其特性来使用B变换来减少在均匀分布数据上从B变换操作生成二进制表达式中的位数增强 数据压缩性能。

公开(公告)号：US20110210875A1

公开(公告)日：2011-09-01

申请号：US13063784

申请日：2009-09-09

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

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

IPC分类号： H03M7/30

CPC分类号： H03M7/30

摘要： The present disclosure relates to an encoding method and to an encoding apparatus for B-transform, and to encoded data for same. The apparatus is for encoding input data and includes: a B-transform unit for performing a B-transform on the input data to generate a binary expression; and an encoder for removing one or more binary symbols from the binary expression and scanning the binary expression with the one or more binary symbols removed to generate a bitstream. According to the present disclosure, it is possible to encode uniform distribution data efficiently, and using the B-transform by its characteristics for reducing the bit number in the generation of the binary expressions from the B-transform operation on the uniform distribution data enhances the data compression performance.

摘要翻译： 本公开涉及编码方法和用于B变换的编码装置，以及编码数据的编码方法。 该装置用于编码输入数据，并包括：B变换单元，用于对输入数据执行B变换以产生二进制表达式; 以及用于从二进制表达式中去除一个或多个二进制符号并且用去除了一个或多个二进制符号扫描二进制表达式以生成比特流的编码器。 根据本公开，可以有效地对均匀分布数据进行编码，并且通过其对于在均匀分布数据上从B变换操作生成二进制表达式中的比特数的特性来使用B变换增强了 数据压缩性能。

公开(公告)号：US08654836B2

公开(公告)日：2014-02-18

申请号：US13055683

申请日：2009-07-15

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

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

IPC分类号： H04N7/32 ,  G06K9/36

CPC分类号： H04N19/635 ,  H04N19/122

摘要： The present disclosure relates to an apparatus and method for determining an adaptive filter tap to encode a wavelet transform coefficient, a wavelet transform apparatus and a method using the same, and a recording medium for the same, wherein the filter tap is determined rendering the high-band energy to be minimized, based not only on whether an edge is present but also on the edge location so as to adaptively determine the filter tap for an efficient coding of the wavelet transform coefficient. Therefore, the disclosure is able to prevent ringing artifacts and increase coding efficiency while maintaining clear definition on the edges.

摘要翻译： 本公开涉及一种用于确定自适应滤波器抽头以编码小波变换系数的装置和方法，小波变换装置及其使用方法，以及用于其的记录介质，其中确定滤波器抽头呈现高 不仅基于边缘是否存在而且基于边缘位置，以便自适应地确定用于小波变换系数的有效编码的滤波器抽头，所以能量被最小化。 因此，本公开能够防止振铃伪像并提高编码效率，同时保持边缘上的清晰定义。

公开(公告)号：US20110182355A1

公开(公告)日：2011-07-28

申请号：US13055683

申请日：2009-07-15

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

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

IPC分类号： H04N7/32 ,  H04N7/40

CPC分类号： H04N19/635 ,  H04N19/122

摘要： The present disclosure relates to an apparatus and method for determining an adaptive filter tap to encode a wavelet transform coefficient, a wavelet transform apparatus and a method using the same, and a recording medium for the same, wherein the filter tap is determined rendering the high-band energy to be minimized, based not only on whether an edge is present but also on the edge location so as to adaptively determine the filter tap for an efficient coding of the wavelet transform coefficient. Therefore, the disclosure is able to prevent ringing artifacts and increase coding efficiency while maintaining clear definition on the edges.

摘要翻译： 本公开涉及一种用于确定自适应滤波器抽头以编码小波变换系数的装置和方法，小波变换装置及其使用方法，以及用于其的记录介质，其中确定滤波器抽头呈现高 不仅基于边缘是否存在而且基于边缘位置，以便自适应地确定用于小波变换系数的有效编码的滤波器抽头，所以能量被最小化。 因此，本公开能够防止振铃伪像并提高编码效率，同时保持边缘上的清晰定义。

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。

公开(公告)号：US08559509B2

公开(公告)日：2013-10-15

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： H04B1/66

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。

公开(公告)号：US20110235704A1

公开(公告)日：2011-09-29

申请号：US13124225

申请日：2009-10-08

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： H04N19/103 ,  H04N19/129 ,  H04N19/146 ,  H04N19/176 ,  H04N19/583

摘要： A hybrid block motion compensation/adaptive overlapped block motion compensation apparatus for an encoding apparatus includes: a selector for selecting between a block motion compensation BMC and an overlapped block motion compensation OBMC with respect to a current block in units of pixels according to a set criterion; an adaptive motion compensator; a scan mode setter for scanning the current block in a plurality of set scan modes and establishing a scan mode causing a smallest number of transitions between the BMC and OBMC; and an information recorder for recording transition information at locations of the pixels corresponding to the transitions between the BMC and OBMC. A decoding apparatus is disclosed including: an interpreter for scan mode information of a current block and information about transitions between the BMC and OBMC for each of pixels of the current block; and an adaptive motion compensator for operating in units of the pixels.

摘要翻译： 用于编码装置的混合块运动补偿/自适应重叠块运动补偿装置包括：选择器，用于根据设定的标准以像素为单位相对于当前块在块运动补偿BMC和重叠块运动补偿OBMC之间进行选择 ; 自适应运动补偿器; 扫描模式设定器，用于以多个设定的扫描模式扫描当前块并建立在BMC与OBMC之间产生最小数量的转换的扫描模式; 以及信息记录器，用于在与BMC和OBMC之间的转变相对应的像素的位置处记录转换信息。 公开了一种解码装置，包括：用于当前块的扫描模式信息的解释器和关于当前块的每个像素的BMC和OBMC之间的转换的信息; 以及用于以像素为单位操作的自适应运动补偿器。

公开(公告)号：US20110200100A1

公开(公告)日：2011-08-18

申请号：US13126144

申请日：2009-10-22

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

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

IPC分类号： H04N7/12

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82

摘要： A video encoding/decoding apparatus, an adaptive deblocking filtering apparatus and a filtering method for same, and a recording medium are disclosed. The filtering apparatus includes: a boundary strength determiner for determining strength of boundaries between subblocks of current block; a direction selector for selecting multiple directions preset with reference to the boundary sequentially; a filtering pixel selector for selecting pixels for filtering based on selected directions; a filtering determiner for determining whether to perform the filtering for the selected directions depending on relationships between pixel values of selected pixels; and a filtering unit for filtering the selected pixels in the selected directions depending on the determination of whether to perform filtering to apply pixel-wide deblocking filtering in a plurality of directions as well as in vertical and horizontal directions, thus effectively removing block distortions resulting from a diagonal discontinuity caused byedges in a plurality of diagonal directions.

摘要翻译： 公开了一种视频编码/解码装置，自适应去块滤波装置及其滤波方法及记录介质。 滤波装置包括：边界强度确定器，用于确定当前块的子块之间的边界的强度; 方向选择器，用于选择参考边界预先设定的多个方向; 滤波像素选择器，用于基于所选择的方向选择用于滤波的像素; 滤波确定器，用于根据所选择的像素的像素值之间的关系确定是否对所选择的方向进行滤波; 以及滤波单元，用于根据是否执行滤波以在多个方向以及垂直和水平方向上进行像素宽度去块滤波的确定来对所选择的方向中的所选像素进行滤波，从而有效地去除由 在多个对角线方向上产生的对角不连续性。

公开(公告)号：US20110200098A1

公开(公告)日：2011-08-18

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： H04N7/26

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：US09596485B2

公开(公告)日：2017-03-14

申请号：US13126144

申请日：2009-10-22

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

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

IPC分类号： H04N7/12 ,  H04N19/86 ,  H04N19/176 ,  H04N19/61 ,  H04N19/117 ,  H04N19/14 ,  H04N19/82

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82

摘要： A video encoding/decoding apparatus, an adaptive deblocking filtering apparatus and a filtering method for same, and a recording medium are disclosed. The filtering apparatus includes: a boundary strength determiner for determining strength of boundaries between subblocks of current block; a direction selector for selecting multiple directions preset with reference to the boundary sequentially; a filtering pixel selector for selecting pixels for filtering based on selected directions; a filtering determiner for determining whether to perform the filtering for the selected directions depending on relationships between pixel values of selected pixels; and a filtering unit for filtering the selected pixels in the selected directions depending on the determination of whether to perform filtering to apply pixel-wide deblocking filtering in a plurality of directions as well as in vertical and horizontal directions, thus effectively removing block distortions resulting from a diagonal discontinuity caused by edges in a plurality of diagonal directions.

摘要翻译： 公开了一种视频编码/解码装置，自适应去块滤波装置及其滤波方法及记录介质。 滤波装置包括：边界强度确定器，用于确定当前块的子块之间的边界的强度; 方向选择器，用于选择参考边界预先设定的多个方向; 滤波像素选择器，用于基于所选择的方向选择用于滤波的像素; 滤波确定器，用于根据所选择的像素的像素值之间的关系确定是否对所选择的方向进行滤波; 以及滤波单元，用于根据是否执行滤波以在多个方向以及垂直和水平方向上进行像素宽度去块滤波的确定来对所选择的方向中的所选像素进行滤波，从而有效地去除由 由多个对角线方向上的边缘引起的对角线间断。