公开(公告)号：US09271000B2

公开(公告)日：2016-02-23

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： H04N19/11 ,  H04N19/122 ,  H04N19/61 ,  H04N19/593

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：US20130003825A1

公开(公告)日：2013-01-03

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： H04N7/50 ,  H04N11/02

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：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：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：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：US10250881B2

公开(公告)日：2019-04-02

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

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.