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：US20120307905A1

公开(公告)日：2012-12-06

申请号：US13510791

申请日：2010-11-08

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

IPC分类号： H04N7/32

CPC分类号： H04N19/52 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70

摘要： A method of encoding a motion vector includes: selecting one of a plurality of predicted candidate motion vector sets by using motion information of neighboring blocks of a current block; selecting one of predicted candidate motion vectors within a selected predicted candidate motion vector set, as a predicted motion vector; encoding a differential motion vector representing a difference between a current motion vector or motion vector of the current block and a selected predicted motion vector; and encoding a predicted motion vector index indicating the selected predicted motion vector. As a motion vector is encoded after selecting an efficient predicted candidate motion vector set, the size of a differential vector to be encoded can be reduced without necessarily encoding additional information to indicate which set of predicted candidate motion vectors has been selected, resulting in improved compression efficiency of motion vectors and in turn the improved video compression efficiency.

摘要翻译： 编码运动矢量的方法包括：通过使用当前块的相邻块的运动信息来选择多个预测候选运动矢量集中的一个; 选择所选择的预测候选运动矢量集中的预测候选运动矢量之一作为预测运动矢量; 编码表示当前块的当前运动矢量或运动矢量与所选择的预测运动矢量之间的差的差分运动矢量; 以及编码表示所选择的预测运动矢量的预测运动矢量索引。 由于在选择有效的预测候选运动矢量集之后对运动矢量进行编码，所以可以减小要编码的差分矢量的大小，而不需要编码附加信息以指示已经选择了预测的候选运动矢量集合，导致改进的压缩 运动矢量的效率又提高了视频压缩效率。

公开(公告)号：US20120307895A1

公开(公告)日：2012-12-06

申请号：US13514552

申请日：2010-12-09

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

IPC分类号： H04N7/50

CPC分类号： H04N19/11 ,  H04N19/122 ,  H04N19/593 ,  H04N19/61

摘要： A video encoding apparatus includes an intra prediction error collector; a transform base generator; an intra predictor; and a transform encoder, the intra prediction error collector collecting prediction errors of blocks having an equal intra prediction mode from macroblocks in a regular unit, which are encoded prior to a current macroblock, the transform base generator generating transform bases for respective intra prediction modes based on the prediction errors collected by the intra prediction error collector. Accordingly, the intra prediction encoding performance can be significantly improved with adding no addition information by adaptively generating a transform base according to an image characteristic change and transform-encoding an intra prediction error. As a result, the compression efficiency of a video compression apparatus or the picture quality of a reconstructed image can be greatly improved.

摘要翻译： 视频编码装置包括帧内预测误差采集器; 变换基地发生器; 内部预测因子 以及变换编码器，帧内预测误差收集器从在当前宏块之前编码的常规单位的宏块中收集具有相同帧内预测模式的块的预测误差，所述变换基站生成器生成用于各帧内预测模式的变换基 关于帧内预测误差采集器收集的预测误差。 因此，通过根据图像特征变化自适应地生成变换基，并对帧内预测误差进行变换编码，可以不增加附加信息，可以显着提高帧内预测编码性能。 结果，可以大大提高视频压缩装置的压缩效率或重建图像的图像质量。

公开(公告)号：US09288495B2

公开(公告)日：2016-03-15

申请号：US13511347

申请日：2010-11-24

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim

IPC分类号： H04N7/28 ,  H04N19/12 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/51 ,  H04N19/103

CPC分类号： H04N19/12 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51

摘要： The present disclosure provides a video encoding/decoding method including: selectively frequency transforming a first residual block generated by subtracting a predicted block from a current block, generating a first quantized block for the first residual block or the frequency transformed first residual block, generating a second quantized block, if the first quantized block is a quantized first residual block from quantizing the first residual block, through selectively performing a secondary prediction on the quantized first residual block by using a secondary predicted motion vector set, encoding information on whether the frequency transforming is performed and selectively encoding information on the secondary prediction, encoding the first quantized block or the second quantized block into a bitstream, and decoding the same.

摘要翻译： 本公开提供了一种视频编码/解码方法，包括：选择性地频率变换通过从当前块减去预测块而产生的第一残差块，产生用于第一残差块或频率变换的第一残差块的第一量化块， 第二量化块，如果第一量化块是从量化第一残差块的量化的第一残差块，则通过使用二次预测运动矢量集选择性地对量化的第一残差块执行二次预测，编码关于频率变换的信息 并且对二次预测进行选择性地编码信息，将第一量化块或第二量化块编码为比特流，并对其进行解码。

公开(公告)号：US08837845B2

公开(公告)日：2014-09-16

申请号：US13391497

申请日：2010-08-18

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Yoonsik Choe ,  Yungho Choi ,  Yonggoo Kim ,  Jongho Kim

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Yoonsik Choe ,  Yungho Choi ,  Yonggoo Kim ,  Jongho Kim

IPC分类号： G06K9/36 ,  H04N19/00

CPC分类号： H04N7/26 ,  H04N19/11 ,  H04N19/13 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： The disclosure relates to a method, apparatus, and recording medium for encoding an intra-prediction mode of an image using variable length codes, including: determining an intra prediction mode of a current block; determining an intra prediction mode having smallest mode number among intra prediction modes of encoded adjacent blocks as Most Probable Mode; generating and allocating variable length codes in ascending order from shorter code with higher similarity for directivity with MPM for all intra-prediction modes; and encoding intra prediction mode of current block based on allocated variable length codes, and thereby generates efficient variable length codes in consideration of high correlation in the intra-prediction modes of current block and peripheral blocks even if intra-prediction mode of current block does not match MPM derived with reference to peripheral blocks, and efficiently compressing information on intra-prediction mode of current block using variable length codes, thereby improving intra video encoding performance.

摘要翻译： 本公开涉及一种用于使用可变长度码对图像的帧内预测模式进行编码的方法，装置和记录介质，包括：确定当前块的帧内预测模式; 将编码的相邻块的帧内预测模式中的最小模式数的帧内预测模式确定为最可能模式; 从针对所有帧内预测模式的MPM的方向性具有较高相似性的较短代码的升序生成和分配可变长度代码; 并且基于分配的可变长度码来对当前块的帧内预测模式进行编码，从而在当前块和外围块的帧内预测模式中考虑到高相关性生成有效的可变长度码，即使当前块的帧内预测模式不 匹配MPM，并使用可变长度代码高效地压缩当前块的帧内预测模式信息，从而提高帧内视频编码性能。

公开(公告)号：US20120275522A1

公开(公告)日：2012-11-01

申请号：US13504812

申请日：2010-10-01

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yoonsik Choe ,  Yungho Choi ,  Yonggoo Kim

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yoonsik Choe ,  Yungho Choi ,  Yonggoo Kim

IPC分类号： H04N7/32

CPC分类号： H04N19/567 ,  H04N19/52

摘要： The present disclosure relates to a method and apparatus for motion vector encoding/decoding using spatial division, and to a method and apparatus for image encoding/decoding using same, wherein the motion vector encoding method includes: aggregating predicted motion vector candidates of a current block into a plurality of groups; selecting representative predicted motion vectors for respective groups by selecting one of aggregated predicted motion vector candidates within the respective groups as representative predicted motion vector; selecting single representative predicted motion vector from the representative predicted motion vectors for the respective groups as a predicted motion vector; and encoding a differential vector representing difference between a current motion vector of the current block and a selected predicted motion vector. The disclosure suppresses an increase in bit rate caused by encoding side information for indicating which predictor motion vector is selected while is reducing the size of the differential vector to be encoded.

摘要翻译： 本发明涉及一种使用空间划分的运动矢量编码/解码的方法和装置，以及使用其进行图像编码/解码的方法和装置，其中运动矢量编码方法包括：聚合当前块的预测运动矢量候选 分成多个组; 通过选择各组内的聚合预测运动矢量候选中的一个作为代表性预测运动矢量来选择各组的代表性预测运动矢量; 从各组的代表性预测运动矢量中选择单个代表性预测运动矢量作为预测运动矢量; 以及编码表示当前块的当前运动矢量与选择的预测运动矢量之间的差的差分矢量。 该公开抑制了由编码侧信息引起的用于指示哪个预测器运动矢量被选择同时减少要编码的差分矢量的大小引起的比特率的增加。

公开(公告)号：US20120219056A1

公开(公告)日：2012-08-30

申请号：US13394226

申请日：2010-09-02

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim ,  Younghun Jo

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Yungho Choi ,  Yoonsik Choe ,  Yonggoo Kim ,  Younghun Jo

IPC分类号： H04N7/30 ,  H04N7/32

CPC分类号： H04N19/154 ,  H04N19/105 ,  H04N19/14 ,  H04N19/172

摘要： The present disclosure relates to a method, apparatus, and recording medium for encoding videos (adaptive prediction errors) through a reference image-based second prediction to reduce predictive errors and may include in an aspect: generating first prediction error signals based on input signals and prediction signals; generating second prediction error signals based on a first prediction error signal of a current block and a first prediction error signal of a reference block; performing an adaptive DCT transform followed by a quantization on the first prediction error signals or the second prediction error signals into quantized signals; and encoding the quantized signals.

摘要翻译： 本公开涉及一种用于通过基于参考图像的第二预测编码视频（自适应预测误差）的方法，装置和记录介质，以减少预测误差，并且可以包括在一个方面：基于输入信号产生第一预测误差信号，以及 预测信号; 基于当前块的第一预测误差信号和参考块的第一预测误差信号产生第二预测误差信号; 对所述第一预测误差信号或所述第二预测误差信号进行量化后的自适应DCT变换为量化信号; 并对量化信号进行编码。

公开(公告)号：US09363530B2

公开(公告)日：2016-06-07

申请号：US13510791

申请日：2010-11-08

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Yonggoo Kim ,  Yoonsik Choe ,  Yungho Choi

IPC分类号： H04N7/32 ,  H04N19/52

CPC分类号： H04N19/52 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70

摘要： A method of encoding a motion vector includes: selecting one of a plurality of predicted candidate motion vector sets by using motion information of neighboring blocks of a current block; selecting one of predicted candidate motion vectors within a selected predicted candidate motion vector set, as a predicted motion vector; encoding a differential motion vector representing a difference between a current motion vector or motion vector of the current block and a selected predicted motion vector; and encoding a predicted motion vector index indicating the selected predicted motion vector. As a motion vector is encoded after selecting an efficient predicted candidate motion vector set, the size of a differential vector to be encoded can be reduced without necessarily encoding additional information to indicate which set of predicted candidate motion vectors has been selected, resulting in improved compression efficiency of motion vectors and in turn the improved video compression efficiency.

摘要翻译： 编码运动矢量的方法包括：通过使用当前块的相邻块的运动信息来选择多个预测候选运动矢量集中的一个; 选择所选择的预测候选运动矢量集中的预测候选运动矢量之一作为预测运动矢量; 编码表示当前块的当前运动矢量或运动矢量与所选择的预测运动矢量之间的差的差分运动矢量; 以及编码表示所选择的预测运动矢量的预测运动矢量索引。 由于在选择有效的预测候选运动矢量集之后对运动矢量进行编码，所以可以减小要编码的差分矢量的大小，而不需要编码附加信息以指示已经选择了哪一组预测的候选运动矢量，导致改进的压缩 运动矢量的效率又提高了视频压缩效率。