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：US09386324B2

公开(公告)日：2016-07-05

申请号：US13380725

申请日：2010-06-22

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

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

IPC分类号： H04N19/61 ,  H04N19/147 ,  H04N19/122

CPC分类号： H04N19/61 ,  H04N19/122 ,  H04N19/147

摘要： The present disclosure relates to a video encoding/decoding apparatus and method using a multi-dimensional integer transform. The video encoding method of the present disclosure includes: decomposing subblocks in units of a rectangular block and successively encoding rectangular block units to output a rectangularly encoded bitstream of each subblock; encoding the subblocks in units of a square block to output a squarely encoded bitstream of each subblock; calculating an encoding cost involving at least one rectangularly encoded bitstream; calculating an encoding cost not involving the rectangularly encoded bitstream; and on the basis of the calculations, using one or more of the squarely encoded bitstream and the rectangularly encoded bitstream to generate and output the bitstream of the macroblock. According to the disclosure, since the coding scheme for encoding or decoding a video with a higher efficiency is selectively determined, the prediction accuracy can increase and thereby improve the video encoding efficiency.

摘要翻译： 本公开涉及使用多维整数变换的视频编码/解码装置和方法。 本公开的视频编码方法包括：以矩形块为单位分解子块，并连续编码矩形块单位，以输出每个子块的矩形编码比特流; 以方块为单位对子块进行编码，以输出每个子块的正交编码比特流; 计算涉及至少一个矩形编码比特流的编码成本; 计算不涉及矩形编码比特流的编码成本; 并且在计算的基础上，使用一个或多个正交编码比特流和矩形编码的比特流来生成并输出该宏块的比特流。 根据本公开，由于选择性地确定用于编码或解码具有更高效率的视频的编码方案，所以可以增加预测精度，从而提高视频编码效率。

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。

公开(公告)号：US08811487B2

公开(公告)日：2014-08-19

申请号：US13121895

申请日：2009-09-28

申请人： Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

发明人： Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

IPC分类号： H04N11/02 ,  H04N7/26

CPC分类号： H04N19/513 ,  H04N19/124 ,  H04N19/137 ,  H04N19/44 ,  H04N19/503 ,  H04N19/52 ,  H04N19/60 ,  H04N19/61

摘要： The present disclosure relates to a method and an apparatus for motion vector encoding/decoding through estimations of multiple motion vectors, and to a method and an apparatus for video encoding/decoding using the same. The disclosure provides a motion vector encoding apparatus including a motion vector estimator for estimating a plurality of motion vectors with estimating one of the plurality of motion vectors as a motion vector of a current block and estimating the remaining motion vectors by one or more predefined estimation criteria in agreement with a video decoding apparatus; and a motion information encoder for encoding motion information generated by using the plurality of motion vectors. According to the disclosure, estimations are enabled by using more accurate motion vectors while reducing the bit rate for encoding the motion vectors leading to an improvement of the compressing efficiency.

摘要翻译： 本公开涉及一种用于通过多个运动矢量的估计进行运动矢量编码/解码的方法和装置，以及涉及使用其进行视频编码/解码的方法和装置。 本公开提供一种运动矢量编码装置，其包括运动矢量估计器，用于通过估计多个运动矢量中的一个运动矢量作为当前块的运动矢量来估计多个运动矢量，并通过一个或多个预定义的估计准则来估计剩余的运动矢量 与视频解码装置一致; 以及运动信息编码器，用于对通过使用多个运动矢量生成的运动信息进行编码。 根据本公开，通过使用更精确的运动矢量来实现估计，同时减少用于编码运动矢量的比特率，导致压缩效率的提高。

公开(公告)号：US20130089264A1

公开(公告)日：2013-04-11

申请号：US13581206

申请日：2011-02-25

申请人： Jeongyeon Lim ,  Sunyeon Kim ,  Gyumin Lee ,  Jaehoon Choi ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Youngjoe Yoo

发明人： Jeongyeon Lim ,  Sunyeon Kim ,  Gyumin Lee ,  Jaehoon Choi ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Youngjoe Yoo

IPC分类号： G06K9/36

CPC分类号： H04N19/00278 ,  G06K9/36 ,  H04N19/176 ,  H04N19/50 ,  H04N19/51 ,  H04N19/593

摘要： Image encoding/decoding apparatus and method are disclosed. The image encoding apparatus includes: a target block splitter for splitting a target block of an input image to be encoded into a plurality of subblocks according to positions of pixels; a key block encoding unit for selecting a random key block, the size of which is larger than a pixel size of at least one of the plurality of subblocks split by the target block splitter, and performing an intra-prediction or inter-prediction encoding process on the selected key block; and a non-key block encoding unit for designating the rest of the subblocks, except for the selected key block, as a non-key block, and performing a spatial prediction process on the designated non-key block by using a key block reconstructed by the key block encoding unit and values of peripheral pixels of a current block.

摘要翻译： 公开了图像编码/解码装置和方法。 图像编码装置包括：目标块分割器，用于根据像素的位置将待编码的输入图像的目标块分割成多个子块; 键块编码单元，用于选择其尺寸大于由目标块分割器分割的多个子块中的至少一个的像素大小的随机密钥块，并且执行帧内预测或帧间预测编码处理 在选定的关键块上; 以及非密钥块编码单元，用于将除所选择的密钥块之外的其余子块指定为非密钥块，并且通过使用由所述密钥块重建的密钥块对所述指定的非密钥块执行空间预测处理， 密钥块编码单元和当前块的周边像素的值。

公开(公告)号：US20130034154A1

公开(公告)日：2013-02-07

申请号：US13641682

申请日：2011-04-18

申请人： Jinhan Song ,  Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Hyoungmee Park ,  Juock Lee

发明人： Jinhan Song ,  Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Hyoungmee Park ,  Juock Lee

IPC分类号： H04N7/26 ,  H04N7/50

CPC分类号： H04N19/147 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/119 ,  H04N19/122 ,  H04N19/13 ,  H04N19/176 ,  H04N19/61

摘要： Video encoding/decoding apparatus includes video encoder and video decoder. Video encoder generates predicted subblocks by predicting subblocks into which macroblock is divided, generates residual subblocks by subtracting predicted subblocks from subblocks, generates quantized transform coefficients by transforming and quantizing residual subblocks by using transform selected according to size of subblock, generates encoded video data by encoding quantized transform coefficients, and selectively calculates and determines encoding cost when determining encoding mode for at least one of motion vector, transform type, prediction mode, and block type for subblocks. Video decoder reconstructs partition type information, motion information, transform type information, and quantized transform coefficients by decoding encoded data, reconstructs residual subblocks by inverse-quantizing and inverse-transforming quantized transform coefficients by using transform identified by transform type information, generates predicted subblocks by predicting subblocks identified according to partition type information by using motion information, and reconstructs subblocks by adding predicted subblocks and residual subblocks.

摘要翻译： 视频编码/解码装置包括视频编码器和视频解码器。 视频编码器通过预测分割了宏块的子块来生成预测的子块，通过从子块中减去预测的子块来产生残余子块，通过使用根据子块的大小选择的变换来变换和量化残差子块来产生量化的变换系数，通过编码产生编码的视频数据 量化变换系数，并且当为子块的运动矢量，变换类型，预测模式和块类型中的至少一个确定编码模式时，有选择地计算并确定编码成本。 视频解码器通过解码编码数据来重构分区类型信息，运动信息，变换类型信息和量化变换系数，通过使用由变换类型信息识别的变换进行逆量化和逆变换量化变换系数来重构残余子块，通过 通过使用运动信息来预测根据分区类型信息识别的子块，并且通过添加预测子块和剩余子块来重构子块。

公开(公告)号：US20130034153A1

公开(公告)日：2013-02-07

申请号：US13641677

申请日：2011-04-18

申请人： Jinhan Song ,  Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Hyoungmee Park ,  Juock Lee

发明人： Jinhan Song ,  Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Hyoungmee Park ,  Juock Lee

IPC分类号： H04N7/26

CPC分类号： H04N19/12 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/15 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/615 ,  H04N19/96

摘要： A video encoding/decoding apparatus and method are disclosed. The video encoding/decoding apparatus includes: a video encoder for generating predicted subblocks by predicting subblocks into which macroblock is divided, generating residual subblocks by subtracting predicted subblocks from subblocks, generating quantized transform coefficients by transforming and quantizing residual subblocks by using transform selected according to subblock size, and generating encoded video data by using different context tables according to the macroblock and subblocks when using CABAC to encode the quantized transform coefficients; and a video decoder for reconstructing information of partition type, motion, transform type and quantized transform coefficients by decoding encoded data by using a CABAC and different context tables according to a macroblock and subblocks, reconstructing residual subblocks by inverse-quantizing/inverse-transforming the quantized transform coefficients by using a transform identified by the transform type information, generating predicted subblocks, reconstructing the subblocks, and reconstructing the macroblock based on the subblocks.

摘要翻译： 公开了一种视频编码/解码装置和方法。 视频编码/解码装置包括：视频编码器，用于通过预测划分宏块的子块来产生预测的子块，通过从子块中减去预测的子块来产生残余子块，通过使用根据 并且当使用CABAC对量化的变换系数进行编码时，通过使用根据宏块和子块的不同上下文表生成编码视频数据; 以及视频解码器，用于通过使用CABAC和根据宏块和子块的不同上下文表对编码数据进行解码来重建分区类型，运动，变换类型和量化变换系数的信息，通过逆量化/逆变换来重建残余子块 通过使用由变换类型信息识别的变换，产生预测子块，重建子块以及基于子块重建宏块的量化变换系数。

公开(公告)号：US20130022118A1

公开(公告)日：2013-01-24

申请号：US13497928

申请日：2010-09-24

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Jeonghoon Seo ,  Daeyeon Kim ,  Sungwook Hong ,  Jaehoon Choi ,  Gyumin Lee

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Jeonghoon Seo ,  Daeyeon Kim ,  Sungwook Hong ,  Jaehoon Choi ,  Gyumin Lee

IPC分类号： H04N7/32

CPC分类号： H04N19/51 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176

摘要： The present disclosure relates to an inter prediction method and apparatus using adjacent pixels, and a video encoding method and apparatus using the same. The inter prediction method for a predictive encoding includes: determining a current motion vector by estimating a motion of a current block; generating a reference block indicated by the current motion vector; calculating a motion compensation coefficient or an average compensation coefficient by using pixels neighboring the current block and pixels neighboring reference block; generating a changed reference block reflecting the motion compensation coefficient or the average compensation coefficient in the reference block; and determining the changed reference block as a predicted block of the current block. The present disclosure reduces a difference between an actual block and a predicted block by more accurately predicting the block to be encoded, thereby improving the compression efficiency.

摘要翻译： 本公开涉及一种使用相邻像素的帧间预测方法和装置，以及使用其的视频编码方法和装置。 用于预测编码的帧间预测方法包括：通过估计当前块的运动来确定当前运动矢量; 产生由当前运动矢量指示的参考块; 通过使用与当前块相邻的像素和相邻参考块的像素来计算运动补偿系数或平均补偿系数; 产生反映参考块中的运动补偿系数或平均补偿系数的改变的参考块; 以及将所述改变的参考块确定为当前块的预测块。 本公开通过更准确地预测要编码的块来减少实际块和预测块之间的差异，从而提高压缩效率。

公开(公告)号：US20120314771A1

公开(公告)日：2012-12-13

申请号：US13391517

申请日：2010-08-21

申请人： Jeongyeon Lim ,  Sunyeon Kim ,  Gyumin Lee ,  Jaehoon Choi ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Juock Lee ,  Dongwon Kim

发明人： Jeongyeon Lim ,  Sunyeon Kim ,  Gyumin Lee ,  Jaehoon Choi ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Juock Lee ,  Dongwon Kim

IPC分类号： H04N7/32 ,  G06K9/32

CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/463 ,  H04N19/80

摘要： The present disclosure relates to a method and apparatus for interpolating a reference picture and a method and apparatus for encoding/decoding a video using the same. The apparatus for interpolating the reference picture selects a plurality of filters for interpolating the reference picture and generates a reference picture having a target precision through a multi-stage filtering of the reference picture by using a plurality of filters. The compression efficiency of the video may be improved by interpolating a reference picture through the determination of a filter of a filter coefficient for interpolating the reference picture according to characteristics of the video and interpolating the reference picture through a multi-stage filtering or adaptively changing resolutions of motion vectors in the unit of predetermined areas.

摘要翻译： 本公开涉及一种用于内插参考图像的方法和装置，以及使用其编码/解码视频的方法和装置。 用于内插参考图像的装置选择多个滤波器来内插参考图像，并且通过使用多个滤波器通过对参考图像的多级滤波来生成具有目标精度的参考图像。 视频的压缩效率可以通过通过根据视频的特性来确定用于内插参考图像的滤波器系数的滤波器进行内插来提高参考图像，并通过多级滤波或自适应变化的分辨率内插参考图像 以预定区域为单位的运动矢量。

公开(公告)号：US20120269268A1

公开(公告)日：2012-10-25

申请号：US13395205

申请日：2010-08-31

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jongki Han ,  Jungyoup Yang ,  Kwanghyun Won

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jongki Han ,  Jungyoup Yang ,  Kwanghyun Won

IPC分类号： H04N7/32

CPC分类号： H04N19/52 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176 ,  H04N19/182 ,  H04N19/56 ,  H04N19/57 ,  H04N19/61

摘要： The present disclosure relates to a method and apparatus for encoding/decoding a motion vector and a method and apparatus for encoding/decoding video using same. The motion vector encoding method includes selecting a predicted motion vector candidate set including one or more predicted motion vector candidates for a block; determining one or more search ranges for predicted motion vector candidate set; selecting one predicted motion vector candidate among one or more predicted motion vector candidates as predicted motion vector for each search point with respect to each search point within search range by first determination criterion prearranged with video decoding apparatus; selecting one predicted motion vector among the predicted motion vectors for each search point by a second determination criterion not prearranged with the video decoding apparatus, and determining predicted motion vector, differential motion vector, and current motion vector; and generating and encoding the differential motion vector as motion information.

摘要翻译： 本公开涉及一种用于对运动矢量进行编码/解码的方法和装置，以及使用其编码/解码视频的方法和装置。 运动矢量编码方法包括：选择包括块的一个或多个预测运动矢量候选的预测运动矢量候选集; 确定预测运动矢量候选集的一个或多个搜索范围; 通过与视频解码装置预先排列的第一判定标准，在一个或多个预测运动矢量候选中选择一个预测运动矢量候选，作为每个搜索点相对于搜索范围内的每个搜索点的预测运动矢量; 在每个搜索点的预测运动矢量中选择一个预测的运动矢量，该预测运动矢量不与视频解码装置预先布置的第二确定标​​准，并且确定预测的运动矢量，微分运动矢量和当前运动矢量; 并且将差分运动矢量生成和编码为运动信息。