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：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。

公开(公告)号：US09615091B2

公开(公告)日：2017-04-04

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

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.

公开(公告)号：US09264721B2

公开(公告)日：2016-02-16

申请号：US13125946

申请日：2009-10-16

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

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

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/86

CPC分类号： H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/86

摘要： A video encoding/decoding apparatus, a deblocking filter and filtering method based on intra-prediction directions for same, and recording media are disclosed, and the deblocking filter includes: a boundary strength determiner for determining strength of boundary of current block; an intra-block identifier for confirming intra-block identity of a subblock enclosing first pixel at a certain location with reference to the boundary; an intra-prediction direction identifier for identifying an intra-prediction direction of the subblock if the subblock is identified as an intra-block; a filtering pixel selection unit for selecting pixels for filtering based on the first pixel and the identified intra-prediction direction; and a filtering unit for filtering in horizontal direction, vertical direction, or diagonal direction depending on the intra-prediction direction and relationships between pixel values of the selected pixels to eliminate deblocking artifacts within diagonal edges at a boundary between blocks by deblocking filtering in the intra-prediction direction.

摘要翻译： 公开了一种基于帧内预测方向的图像编码/解码装置，去块滤波器和滤波方法以及记录介质，并且解块滤波器包括：用于确定当前块的边界强度的边界强度确定器; 块内标识符，用于确定参照边界在某个位置处封装第一像素的子块的块内标识; 如果子块被识别为帧内块，则用于识别子块的帧内预测方向的帧内预测方向标识符; 滤波像素选择单元，用于基于第一像素和所识别的帧内预测方向选择用于滤波的像素; 以及滤波单元，用于根据帧内预测方向和所选择的像素的像素值之间的关系在水平方向，垂直方向或对角线方向上进行滤波，以通过在帧内的解块滤波来消除块之间的边界处的对角边缘内的去块伪影 预测方向。

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：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：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：US09426491B2

公开(公告)日：2016-08-23

申请号：US13000977

申请日：2009-06-16

申请人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Kihun Han

发明人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Kihun Han

IPC分类号： H04N19/159 ,  H04N19/593

CPC分类号： H04N19/593

摘要： Video encoding/decoding method and apparatus using a block transformation are disclosed. The apparatus encodes the video through predicting each pixel in a current block of the video by using one or more adjacent pixels, which are encoded prior to encoding the current block and have the closest proximity to the pixels respectively in a predetermined prediction direction, and wherein the current block is sized L×M with L being unequal to M. It has become possible to predict the pixels in the block starting from closest one of the pixels in the prediction direction in order to provide more accurate block predictions and then raise the compression efficiency that leaps to more efficient video encoding/decoding performance.

摘要翻译： 公开了使用块变换的视频编码/解码方法和装置。 该装置通过使用一个或多个相邻像素预测视频的当前块中的每个像素来对视频进行编码，所述相邻像素在编码当前块之前被编码并且在预定的预测方向上分别与像素最接近，并且其中 当前块的大小为L×M，其中L不等于M.可以从预测方向上的最近一个像素开始预测块中的像素，以便提供更准确的块预测，然后提高压缩 效率跃进到更高效的视频编码/解码性能。

公开(公告)号：US09100646B2

公开(公告)日：2015-08-04

申请号：US13002259

申请日：2009-08-31

申请人： Hayoon Kim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Mincheol Park

发明人： Hayoon Kim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Mincheol Park

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/105 ,  H04N19/119 ,  H04N19/61 ,  H04N19/593

CPC分类号： H04N19/593 ,  H04N19/105 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/176 ,  H04N19/184 ,  H04N19/503 ,  H04N19/61

摘要： The present disclosure relates to an apparatus and method for encoding/decoding videos using prediction direction change and selective encoding. The present disclosure provides a video encoding apparatus that encodes the current block of a video, comprising a rectangle encoder for dividing and then successively encoding the current block at input into rectangular block units to output a rectangularly encoded bitstream; a square encoder for encoding the current block at input in square block units to output a squarely encoded bitstream; and an encoding selector for calculating the encoding costs of the rectangularly encoded bitstream and the squarely encoded bitstream so as to output the bitstream with a minimum encoding cost. According to the present disclosure, the prediction accuracy may be increased when encoding or decoding videos so that video encoding efficiency can be improved.

摘要翻译： 本公开涉及一种使用预测方向改变和选择性编码对视频进行编码/解码的装置和方法。 本公开提供了一种对视频的当前块进行编码的视频编码装置，包括矩形编码器，用于将输入中的当前块分割，然后连续地编码为矩形块单位，以输出矩形编码比特流; 一个平方编码器，用于以平方块单位对输入端的当前块进行编码，以输出正交编码的比特流; 以及编码选择器，用于计算矩形编码比特流和正交编码比特流的编码成本，以便以最小编码成本输出比特流。 根据本公开，当对视频进行编码或解码时可以提高预测精度，从而可以提高视频编码效率。