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：US20120307906A1

公开(公告)日：2012-12-06

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

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：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。

公开(公告)号：US20120224777A1

公开(公告)日：2012-09-06

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

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：US20120201296A1

公开(公告)日：2012-08-09

申请号：US13497755

申请日：2010-09-03

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

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

IPC分类号： H04N7/32

CPC分类号： H04N19/86 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/61 ,  H04N19/91

摘要： The present disclosure relates to a video encoding/decoding method and apparatus that account for low frequency components. The method includes generating a reconstructed block by performing a predictive encoding on a current block and generating encoded image data, and generating encoded low frequency data by encoding a low frequency component of an error block generated through subtraction of the reconstructed block from the current block, thereby improving the compression efficiency while reducing blocking effects due to transform and quantization operations by encoding images accounting for low frequency components.

摘要翻译： 本公开涉及考虑低频分量的视频编码/解码方法和装置。 该方法包括：通过对当前块执行预测编码并产生编码图像数据来生成重建块，并且通过对从当前块中减去重建块产生的误差块的低频分量进行编码来生成编码低频数据， 从而提高压缩效率，同时通过对计算低频分量的图像进行编码来减少由于变换和量化操作引起的阻塞效应。

公开(公告)号：US10015512B2

公开(公告)日：2018-07-03

申请号：US13641673

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： H04N19/96 ,  H04N19/513 ,  H04N19/119 ,  H04N19/109 ,  H04N19/463 ,  H04N19/176 ,  H04N19/139 ,  H04N19/186 ,  H04N19/52

CPC分类号： H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/52 ,  H04N19/96

摘要： A video encoding/decoding apparatus includes a video encoder for encoding block mode information indicating whether a block mode of a block to be encoded in a macroblock is a skip mode, partition mode information and skip motion information including index information, encoding at least one of transform type information, CBP information, and delta quantization parameter information of the block according to a combination of the block mode information and the partition mode information, and encoding coefficient information of the block based on the encoded information of the block, and a video decoder for decoding a bitstream to reconstruct block mode information indicating whether a block mode of a block to be decoded is a skip mode, partition mode information indicating whether block is divided into subblocks, and skip motion information including index information, and reconstructing block based on the reconstructed information by using reconstructed skip motion information.

公开(公告)号：US09872019B2

公开(公告)日：2018-01-16

申请号：US13811596

申请日：2011-07-20

申请人： Jinhan Song ,  Jeongyeon Lim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jongki Han ,  Jungyoup Yang

发明人： Jinhan Song ,  Jeongyeon Lim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jongki Han ,  Jungyoup Yang

IPC分类号： H04N19/176 ,  H04N19/86 ,  H04N19/117 ,  H04N19/159 ,  H04N19/136 ,  H04N19/82 ,  H04N19/167

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/136 ,  H04N19/159 ,  H04N19/167 ,  H04N19/82

摘要： An encoding apparatus for encoding a video signal includes: a prediction unit for generating a prediction block of a current block by using intra prediction or inter prediction; a residual data encoding unit for generating a residual block by using the current block and the prediction block, and transforming and quantizing the residual block; a residual data decoding unit for decoding a transformed and quantized residual block by inversely quantizing and inversely transforming the transformed and quantized residual block; and a deblocking filter unit for generating a reconstructed block by using a decoded residual block and the prediction block, and performing deblocking filtering, based on inter prediction information and intra prediction information of the reconstructed block and blocks neighboring the reconstructed block. The intra prediction information includes at least one of an intra prediction mode and an intra prediction block size.

公开(公告)号：US09729872B2

公开(公告)日：2017-08-08

申请号：US13990269

申请日：2011-11-25

申请人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

IPC分类号： H04N19/00 ,  H04N19/50 ,  H04N19/11 ,  H04N19/463

CPC分类号： H04N19/50 ,  H04N19/11 ,  H04N19/463

摘要： A video encoding apparatus encodes intra-prediction mode information of the current block by excluding information on overlapping or unnecessary intra-prediction modes from a candidate mode group and/or based on whether predicted values of intra-prediction modes of at least a preset number of subblocks are matched with actual intra-prediction modes.

公开(公告)号：US09538178B2

公开(公告)日：2017-01-03

申请号：US13811603

申请日：2011-07-19

申请人： Jinhan Song ,  Jeongyeon Lim ,  Yonggoo Kim ,  Yoonsik Choe ,  Yung Ho Choi ,  Sungjei Kim

发明人： Jinhan Song ,  Jeongyeon Lim ,  Yonggoo Kim ,  Yoonsik Choe ,  Yung Ho Choi ,  Sungjei Kim

IPC分类号： H04N19/00 ,  H04N19/50 ,  H04N19/176 ,  H04N19/15 ,  H04N19/593 ,  H04N19/117 ,  H04N19/46

CPC分类号： H04N19/50 ,  H04N19/117 ,  H04N19/15 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593

摘要： An intra prediction encoding apparatus includes: an optimal filter selecting unit for providing a plurality of extrapolation prediction filter candidates for filtering pixels adjacent to a current block to be encoded, with respect to each intra prediction direction or prediction mode of the current block, and selecting a filter having lowest encoding cost among the plurality of extrapolation prediction filter candidates; a residual signal generating unit for generating an extrapolation prediction value of the current block through the filter selected by the optimal filter selecting unit, and generating a residual signal by calculating a difference between a generated extrapolation prediction value of the current block and a pixel value of the current block; a transform and quantization unit for performing transform and quantization on the residual signal generated by the residual signal generating unit; and an entropy encoding unit for performing entropy encoding on a transformed and quantized residual signal.

摘要翻译： 帧内预测编码装置包括：最优滤波器选择单元，用于相对于当前块的每个帧内预测方向或预测模式，提供用于对与要编码的当前块相邻的像素进行滤波的多个外推预测滤波候选，以及选择 在多个外推预测滤波器候选中具有最低编码成本的滤波器; 剩余信号产生单元，用于通过由最佳滤波器选择单元选择的滤波器产生当前块的外插预测值，并且通过计算所生成的当前块的外推预测值和当前块的像素值之间的差来产生残差信号; 当前块; 用于对由残余信号产生单元产生的残余信号执行变换和量化的变换和量化单元; 以及熵编码单元，用于对经变换和量化的残差信号进行熵编码。

公开(公告)号：US09532065B2

公开(公告)日：2016-12-27

申请号：US13697520

申请日：2011-05-12

申请人： Jinhan Song ,  Jeongyeon Lim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Daeyeon Kim ,  Sungwook Hong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Daeyeon Kim ,  Sungwook Hong

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/86 ,  H04N19/61 ,  H04N19/80 ,  H04N19/176 ,  H04N19/117 ,  H04N19/157 ,  H04N19/82

CPC分类号： H04N19/117 ,  H04N19/107 ,  H04N19/119 ,  H04N19/12 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/865

摘要： An image filtering apparatus and method and a video encoding/decoding apparatus and method using the same are disclosed. The image filtering apparatus includes: a boundary identifying unit for identifying a boundary between two transform blocks included in an image; a pixel/strength selecting unit for selecting a filtering strength according to a size of at least one transform block among the two transform blocks; and a filtering unit for filtering at least one pixel included in a region adjacent to the boundary.

摘要翻译： 公开了一种图像滤波装置和方法以及使用该图像滤波装置和方法的视频编码/解码装置和方法。 图像滤波装置包括：边界识别单元，用于识别包括在图像中的两个变换块之间的边界; 像素/强度选择单元，用于根据两个变换块中的至少一个变换块的大小来选择滤波强度; 以及滤波单元，用于对包含在与边界相邻的区域中的至少一个像素进行滤波。