公开(公告)号：US09674546B2

公开(公告)日：2017-06-06

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 ,  H04N19/523 ,  H04N19/117 ,  H04N19/463 ,  H04N19/80

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.

公开(公告)号：US09491480B2

公开(公告)日：2016-11-08

申请号：US13583533

申请日：2011-03-04

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

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

IPC分类号： H04N19/523 ,  H04N19/567 ,  H04N19/517 ,  H04N19/50

CPC分类号： H04N19/517 ,  H04N19/50 ,  H04N19/523 ,  H04N19/567

摘要： The present disclosure provides a motion vector encoding/decoding method and apparatus using a motion vector resolution combination, and an image encoding/decoding method and apparatus using the same. A motion vector encoding apparatus include: an encoding cost calculator for calculating an encoding cost according to a motion vector resolution for each motion vector resolution combination including one or more motion vector resolutions; a resolution combination determiner for selecting a motion vector resolution combination by using the encoding cost calculated for each motion vector resolution combination; and a motion information encoder for outputting encoded motion vector data generated by encoding a motion vector determined according to the motion vector resolution combination selected, as a bitstream. Accordingly, an efficient motion vector resolution combination is selected adaptively and a motion vector is determined and decoded based on the motion vector resolution combination, thus making it possible to improve compression efficiency.

摘要翻译： 本公开提供了使用运动矢量分辨率组合的运动矢量编码/解码方法和装置，以及使用其的图像编码/解码方法和装置。 运动矢量编码装置包括：编码成本计算器，用于根据包括一个或多个运动矢量分辨率的每个运动矢量分辨率组合根据运动矢量分辨率计算编码成本; 分辨率组合确定器，用于通过使用为每个运动矢量分辨率组合计算的编码成本来选择运动矢量分辨率组合; 以及运动信息编码器，用于输出通过编码根据所选择的运动矢量分辨率组合确定的运动矢量而生成的编码运动矢量数据作为比特流。 因此，自适应地选择有效的运动矢量分辨率组合，并且基于运动矢量分辨率组合来确定和解码运动矢量，从而可以提高压缩效率。

公开(公告)号：US20130272387A1

公开(公告)日：2013-10-17

申请号：US13811581

申请日：2011-07-05

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

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

IPC分类号： H04N7/26

CPC分类号： H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/182 ,  H04N19/436 ,  H04N19/625 ,  H04N19/63 ,  H04N19/70 ,  H04N19/91

摘要： The present disclosure provides a method and apparatus for subband-coding a frequency conversion unit and a video encoding/decoding method a video encoding/decoding apparatus using the same. The method and the apparatus for subband-coding the frequency conversion unit include generating an encoding stream by splitting the frequency conversion unit into one or more frequency domains, generating frequency domain encoding information according to whether there is a non-zero frequency coefficient in each frequency domain, scanning the frequency coefficient of each frequency domain to generate a frequency domain frequency coefficient stream, and binarizing and encoding the frequency domain encoding information and the scanned frequency domain frequency coefficient stream.

摘要翻译： 本公开提供了一种用于对频率转换单元进行子带编码的方法和装置以及使用其的视频编码/解码装置的视频编码/解码方法。 用于对频率转换单元进行子带编码的方法和装置包括：通过将频率转换单元分成一个或多个频域来产生编码流，根据每个频率中是否存在非零频率系数产生频域编码信息 扫描每个频域的频率系数以产生频域频率系数流，并对频域编码信息和扫描频域频率系数流进行二值化和编码。

公开(公告)号：US20130230098A1

公开(公告)日：2013-09-05

申请号：US13878352

申请日：2011-09-30

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

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

IPC分类号： H04N7/26

CPC分类号： H04N19/105 ,  H04N19/126 ,  H04N19/129 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463

摘要： A video encoding/decoding apparatus including a video encoder for generating a prediction block, generating a residual block by subtracting the prediction block from the current block. The video encoder is for generating a frequency-transformed block by transforming and quantizing the residual block, generating a masked frequency-transformed block by masking the frequency-transformed block by using one or more frequency mask tables. The video encoder is for encoding information about a frequency mask table used for masking the masked frequency-transformed block. The apparatus includes a video decoder for extracting a masked quantized frequency coefficient string recorded in the bitstream. The video decoder is for generating a quantized frequency coefficient string by zero setting all quantized frequency coefficients at positions of no records in the bitstream from a masked quantized frequency coefficient string. The video decoder is for generating a quantized frequency-transformed block by inversely scanning the generated quantized frequency coefficient string.

公开(公告)号：US20130202047A1

公开(公告)日：2013-08-08

申请号：US13880004

申请日：2011-10-18

申请人： Jinhan Song ,  Jeongyeon Lim ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Myung Hun Jang

发明人： Jinhan Song ,  Jeongyeon Lim ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Myung Hun Jang

IPC分类号： H04N7/26

CPC分类号： H04N19/523 ,  H04N19/52 ,  H04N19/91

摘要： A video encoding/decoding apparatus includes a video encoder and a video decoder. The video encoder is configured to set up motion vector resolutions differentiated by search areas centered on a prediction motion vector of a current block, perform a motion estimation with a resolution corresponding to each of the search areas to generate a motion vector, and encode a differential motion vector between the generated motion vector and the prediction motion vector. The video decoder is configured to extract the differential motion vector from a bitstream, and decode the extracted differential motion vector with a resolution corresponding to a search area where the differential motion vector belongs to among the search areas.

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。 视频编码器被配置为设置由以当前块的预测运动矢量为中心的搜索区域区分的运动矢量分辨率，以与每个搜索区域相对应的分辨率执行运动估计，以生成运动矢量，并且编码差分 所产生的运动矢量与预测运动矢量之间的运动矢量。 视频解码器被配置为从比特流中提取差分运动矢量，并且利用对应于差分运动矢量所属于的搜索区域的搜索区域的分辨率解码所提取的差分运动矢量。

公开(公告)号：US20130064292A1

公开(公告)日：2013-03-14

申请号：US13698499

申请日：2011-05-13

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

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

IPC分类号： H04N7/32

CPC分类号： H04N19/109 ,  H04N19/11 ,  H04N19/176 ,  H04N19/61

摘要： A video encoding/decoding apparatus includes: a video encoder for dividing coding unit block into combination of subblocks of codable size, determining combination of inter blocks and intra blocks with respect to each subblock, determining encoding order of intra encoding blocks within coding unit considering referencing possibility of peripheral pixel values of current block to be intra-prediction encoded, bi-directional intra prediction encoding the current block in determined encoding order, and transmitting encoding mode/size information of subblocks after locating encoding mode/size information in front of a syntax of the coding unit; and a video decoder for restoring encoding mode/size information of subblocks within the coding unit by decoding encoded data, reconstructing inter prediction encoded blocks, based on restored encoding mode information, and determining decoding order of intra prediction mode blocks according to encoding mode/size information of each subblock within coding unit, and conditions on referencing possibility of peripheral blocks of coding unit.

摘要翻译： 视频编码/解码装置包括：视频编码器，用于将编码单元块划分为可编码大小的子块的组合，确定相对于每个子块的帧间块和帧块的组合，考虑参考的编码单元内的帧内编码块的编码顺序 将当前块的周边像素值的可能性进行帧内预测编码，以确定的编码顺序编码当前块的双向帧内预测，​​以及在定位编码模式/大小信息之前的语法之前发送子块的编码模式/尺寸信息 的编码单元; 以及视频解码器，用于通过解码编码数据来恢复编码单元内的子块的编码模式/尺寸信息，根据恢复的编码模式信息重建帧间预测编码块，并根据编码模式/尺寸确定帧内预测模式块的解码顺序 编码单元内的每个子块的信息，以及参考编码单元的外围块的可能性的条件。

公开(公告)号：US20130034152A1

公开(公告)日：2013-02-07

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： H04N7/50 ,  H04N7/26

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.

摘要翻译： 视频编码/解码装置包括用于编码块模式信息的视频编码器，所述块模式信息指示要在宏块中编码的块的块模式是否为跳过模式，分区模式信息和包括索引信息的跳过运动信息， 根据块模式信息和分区模式信息的组合，块的变换类型信息，CBP信息和增量量化参数信息，以及基于块的编码信息对块的编码系数信息，以及视频解码器 用于对比特流进行解码以重构指示要解码的块的块模式是否为跳过模式的块模式信息，指示块是否被划分为子块的分区模式信息，以及包括索引信息的跳过运动信息，以及基于 通过使用重建的跳过运动信息重构信息。

公开(公告)号：US20120328015A1

公开(公告)日：2012-12-27

申请号：US13516687

申请日：2010-12-17

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

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

IPC分类号： H04N7/50 ,  H04N7/26

CPC分类号： H04N19/107 ,  H04N19/109 ,  H04N19/119 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/137 ,  H04N19/176 ,  H04N19/179 ,  H04N19/40 ,  H04N19/44 ,  H04N19/52 ,  H04N19/533 ,  H04N19/57 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： The present disclosure relates to a video encoding/decoding apparatus and method, in which skip information indicating whether a block is a skip block is encoded, partition information of the block and skip motion information of the block are encoded or prediction information of the block containing the partition information of the block and intra prediction mode information or motion information are encoded according to the skip information, residual signal information of the block is predictive-encoded based on the prediction information and the transform information, and an encoded signal is reconstructed. The method and the apparatus can improve the video compression efficiency by efficiently encoding the encoding information used for the video encoding and selectively using various encoding methods and decoding methods in encoding the video.

摘要翻译： 本公开涉及一种视频编码/解码装置和方法，其中编码表示块是否为跳过块的跳过信息，块的分区信息和块的跳过运动信息被编码或包含块的预测信息 根据跳过信息对块的分区信息和帧内预测模式信息或运动信息进行编码，基于预测信息和变换信息对块的残留信号信息进行预测编码，并重构编码信号。 该方法和装置可以通过有效地编码用于视频编码的编码信息并且选择性地使用编码视频中的各种编码方法和解码方法来提高视频压缩效率。

公开(公告)号：US20120328014A1

公开(公告)日：2012-12-27

申请号：US13582886

申请日：2011-03-04

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

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

IPC分类号： H04N7/32

CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

摘要： The present disclosure provides a video encoding apparatus and method and a video decoding apparatus and method. The video encoding apparatus, includes: a block mode determiner for determining a block mode of a current block; an NCI block intra encoder responsive if the block mode of the current block determined by the block mode determiner is an intra mode and neighboring blocks of the current block include an NCI block, for encoding the NCI block through an intra prediction of the NCI block; and a current block intra encoder responsive if the block mode of the current block determined by the block mode determiner is the intra mode and the neighboring blocks of the current block include the NCI block, for encoding the current block through an intra prediction of the current block.

摘要翻译： 本公开提供一种视频编码装置和方法以及视频解码装置和方法。 视频编码装置包括：块模式确定器，用于确定当前块的块模式; 如果由块模式确定器确定的当前块的块模式是帧内模式，则NCI块内编码器响应，当前块的相邻块包括NCI块，用于通过NCI块的帧内预测对NCI块进行编码; 以及如果由块模式确定器确定的当前块的块模式是帧模式并且当前块的相邻块包括NCI块，则响应于当前块内编码器，用于通过当前的帧内预测对当前块进行编码 块。

公开(公告)号：US20120308148A1

公开(公告)日：2012-12-06

申请号：US13514537

申请日：2010-12-10

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

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

IPC分类号： G06K9/36

CPC分类号： H04N19/176 ,  H04N19/00 ,  H04N19/105 ,  H04N19/119 ,  H04N19/146 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85 ,  H04N19/96

摘要： The present disclosure provides an encoding/decoding method using a tree structure. The encoding method for encoding image information includes: grouping predetermined areas having the image information into a plurality of groups, and generating a node value of each layer up to an uppermost layer by determining a minimum value or a maximum value of information to be encoded within grouped areas as information on the grouped areas; and encoding a difference value between the node value of each layer and a node value of an upper layer or a difference value between the node value of each layer and a value determined based on a preset criterion. Accordingly, the encoding efficiency and in turn the video compression efficiency are improved by using the tree structure in the encoding of various pieces of image information and the decoding of the resultant encoded data.

摘要翻译： 本公开提供了使用树结构的编码/解码方法。 用于编码图像信息的编码方法包括：将具有图像信息的预定区域分组成多个组，并通过确定要被编码的信息的最小值或最大值来生成每层的节点值直到最上层 分组区域作为分组区域的信息; 对各层的节点值和上层的节点值之间的差值或每层的节点值之间的差值与基于预设标准确定的值进行编码。 因此，通过在编码各种图像信息和对所得到的编码数据的解码中使用树结构来提高编码效率，进而提高视频压缩效率。