公开(公告)号：US09686555B2

公开(公告)日：2017-06-20

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

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.

公开(公告)号：US09628814B2

公开(公告)日：2017-04-18

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 ,  H04N19/56 ,  H04N19/52 ,  H04N19/57

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.

公开(公告)号：US09549190B2

公开(公告)日：2017-01-17

申请号：US13499406

申请日：2010-10-01

申请人： Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Sunyeon Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Hyoungmee Park ,  Mincheol Park ,  Dongwon Kim ,  Kibaek Kim ,  Juock Lee

发明人： Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Sunyeon Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Hyoungmee Park ,  Mincheol Park ,  Dongwon Kim ,  Kibaek Kim ,  Juock Lee

IPC分类号： H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/15 ,  H04N19/107 ,  H04N19/463 ,  H04N19/105 ,  H04N19/61 ,  H04N19/96 ,  H04N19/172

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/107 ,  H04N19/119 ,  H04N19/15 ,  H04N19/172 ,  H04N19/176 ,  H04N19/463 ,  H04N19/61 ,  H04N19/96

摘要： The video encoding/decoding apparatus includes a video encoder for encoding macroblocks by each of prediction basic unit candidates, determining prediction basic units based on encoding costs for each of the prediction basic unit candidates, and generating a bitstream including image data encoded in determined prediction basic units, information on a prediction type for each of the determined prediction basic units, and prediction data depending on the prediction type; and a video decoder for extracting information on the prediction type for each of the prediction basic units, prediction data depending on the prediction type, and encoded image data from the bitstream, and generating a reconstructed image by decoding the encoded image data depending on the prediction type for each of the prediction basic units.

摘要翻译： 视频编码/解码装置包括用于通过每个预测基本单位候选对宏块进行编码的视频编码器，基于每个预测基本单元候选的编码成本来确定预测基本单位，以及生成包含以确定的预测基准 单位，关于每个确定的预测基本单位的预测类型的信息，以及取决于预测类型的预测数据; 以及视频解码器，用于提取关于每个预测基本单元的预测类型的信息，取决于预测类型的预测数据和来自比特流的编码图像数据，并且根据预测来对编码图像数据进行解码来生成重建图像 为每个预测基本单位输入。

公开(公告)号：US09531917B2

公开(公告)日：2016-12-27

申请号：US13511336

申请日：2010-11-23

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

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

IPC分类号： H04N1/56 ,  H04N19/61 ,  H04N19/593 ,  H04N19/186 ,  H04N19/176

CPC分类号： H04N1/56 ,  H04N19/176 ,  H04N19/186 ,  H04N19/593 ,  H04N19/61

摘要： The present disclosure relates to extracting correlation parameters between color planes for prediction by extracting optimum correlation parameters between the color planes using neighboring blocks when a prediction screen is generated through the use of the correlation between the color planes in video encoding. The technology includes neighboring block searching unit responsive to a second block of a reconstructed previous plane corresponding to a first block to be encoded of a current plane, for searching for a third block belonging to neighboring blocks of the second block and having smallest difference in pixel value from the second block; correlation parameter calculator for calculating correlation parameters between the third block and a fourth block reconstructed of the current plane and corresponding to the third block, based on the third block and the fourth block, and predictor for predicting the first block based on the second block and calculated correlation parameters.

摘要翻译： 本公开涉及通过使用视频编码中的色彩平面之间的相关性来生成预测屏幕时，通过使用相邻块提取色彩平面之间的最佳相关参数来提取用于预测的彩色平面之间的相关参数。 该技术包括响应于对应于要编码的当前平面的第一块的重构的先前平面的第二块的相邻块搜索单元，用于搜索属于第二块的相邻块并且具有最小像素差的第三块 第二块的值; 相关参数计算器，用于基于第三块和第四块，计算第三块与当前平面重构并与第三块相对应的第四块之间的相关参数，以及用于基于第二块预测第一块的预测器，以及 计算相关参数。

公开(公告)号：US09451262B2

公开(公告)日：2016-09-20

申请号：US13391583

申请日：2010-08-21

申请人： Sunyeon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Daeyeon Kim ,  Jeongyeon Lim

发明人： Sunyeon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Daeyeon Kim ,  Jeongyeon Lim

IPC分类号： H04N7/32 ,  H04N19/11 ,  H04N19/70 ,  H04N19/61

CPC分类号： H04N19/11 ,  H04N19/61 ,  H04N19/70

摘要： The present disclosure provides a method and apparatus for intra prediction encoding/decoding. The method includes: selecting an intra prediction mode of each block to be encoded; encoding a residual block generated through an intra prediction of the block according to the selected intra prediction mode to generate a coefficient bit; encoding a mode identifier for indicating the intra prediction mode according to the predetermined mode determination method to generate a mode bit; generating a bitstream including a mode bit field including a mode bit for one or more blocks and a coefficient bit field including a coefficient bit for the block; and including a mode bit field pointer for identifying the mode bit field in the bitstream. The present disclosure simplifies the process of selecting a prediction mode in a video compression to improve a compression speed and decreases a size of compressed data to improve the compression efficiency.

摘要翻译： 本公开提供了一种用于帧内预测编码/解码的方法和装置。 该方法包括：选择要编码的每个块的帧内预测模式; 根据所选择的帧内预测模式对通过块的帧内预测生成的残差块进行编码，生成系数比特; 根据预定模式确定方法编码用于指示帧内预测模式的模式标识符，以生成模式比特; 生成包括包括一个或多个块的模式位的模式位字段和包括用于块的系数位的系数位字段的比特流; 并且包括用于识别比特流中的模式比特字段的模式比特字段指针。 本公开简化了在视频压缩中选择预测模式的过程，以提高压缩速度并减小压缩数据的大小以提高压缩效率。

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。

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。