公开(公告)号：WO2007081116A1

公开(公告)日：2007-07-19

申请号：PCT/KR2007/000082

申请日：2007-01-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY RESEARCH INSTITUTE FOR INDUSTRY COOPERATION ,  JEONG, Se-Yoon ,  SEO, Jeong-Il ,  KIM, Kyu-Heon ,  KANG, Kyeongok ,  HONG, Jin-Woo ,  LEE, Yung-Lyul ,  KIM, Dae-Yeon ,  KIM, Dong-Gyun ,  OH, Seoung-Jun ,  SIM, Dong-Gyu ,  AHN, Chang-Beom

Inventor： JEONG, Se-Yoon ,  SEO, Jeong-Il ,  KIM, Kyu-Heon ,  KANG, Kyeongok ,  HONG, Jin-Woo ,  LEE, Yung-Lyul ,  KIM, Dae-Yeon ,  KIM, Dong-Gyun ,  OH, Seoung-Jun ,  SIM, Dong-Gyu ,  AHN, Chang-Beom

IPC: H04N7/24

CPC classification number: H04N19/94 ,  H04N19/107 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61 ,  H04N19/91

Abstract: Video data encoding and decoding methods and apparatuses are provided. In the video data encoding and decoding methods, codes books are provided to an encoder and a decoder. In the encoder, an index corresponding to a vector that is most similar to a current vector of an input moving picture among the vectors of the code book is encoded. In the decoder, the index is decoded. Accordingly, it is possible to increase compression ratio and reduce calculation complexity.

Abstract translation: 提供视频数据编码和解码方法和装置。 在视频数据编码和解码方法中，将码本提供给编码器和解码器。 在编码器中，编码对应于与代码本的向量中的输入运动图像的当前矢量最相似的向量的索引。 在解码器中，索引被解码。 因此，可以增加压缩比并降低计算复杂度。

公开(公告)号：WO2007108661A1

公开(公告)日：2007-09-27

申请号：PCT/KR2007/001413

申请日：2007-03-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHO, Suk-Hee ,  KWON, Hyoung-Jin ,  HUR, Namho ,  KIM, Jin-Woong ,  LEE, Soo-In ,  LEE, Yung-Lyul ,  HUR, Jae-Ho ,  SIM, Dong-Gyu

Inventor： CHO, Suk-Hee ,  KWON, Hyoung-Jin ,  HUR, Namho ,  KIM, Jin-Woong ,  LEE, Soo-In ,  LEE, Yung-Lyul ,  HUR, Jae-Ho ,  SIM, Dong-Gyu

IPC: H04N7/32

CPC classification number: H04N19/463 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

Abstract: A method of and apparatus for encoding and decoding a signal by illumination change compensated motion estimation are provided. The apparatus for encoding a signal by illumination change compensated motion estimation includes: an illumination change compensation unit performing compensation for an illumination change by performing a differential calculation between each pixel value of a current block and the means pixel value of a reference block indicated by a motion vector of the current blok and the mean pixel value of the reference block; a residual signals generation unit generating redisual signals based on the blocks in which illumination change compensation is performed; and an illumination changed amount prediction unit performing differential pulse code modulation (DPCM) based on the illumination change amount prediction value by reflecting the closeness between neighboring blocks in which illumination change occurs.

Abstract translation: 提供了一种通过照明变化补偿运动估计对信号进行编码和解码的方法和装置。 用于通过照明改变补偿运动估计对信号进行编码的装置包括：照明变化补偿单元，通过对当前块的每个像素值和由参考块指示的参考块的平均值进行差分计算来执行对照明变化的补偿 当前blok的运动矢量和参考块的平均像素值; 剩余信号生成单元，基于执行照明变化补偿的块生成再生信号; 以及照明变化量预测单元，通过反映发生照明变化的相邻块之间的接近度，基于照明变化量预测值来执行差分脉冲编码调制（DPCM）。

公开(公告)号：WO2008020672A1

公开(公告)日：2008-02-21

申请号：PCT/KR2007/001433

申请日：2007-03-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  JEONG, Se-Yoon ,  CHOI, Hae-Chul ,  SEO, Jeong-Il ,  BEACK, Seung-Kwon ,  JANG, In-Seon ,  KIM, Jae-Gon ,  MOON, Kyung-Ae ,  JANG, Dae-Young ,  HONG, Jin-Woo ,  KIM, Jin-Woong ,  LEE, Yung-Lyul ,  SIM, Dong-Gyu ,  OH, Seoung-Jun ,  AHN, Chang-Beom ,  KIM, Dae-Yeon ,  KIM, Dong-Kyun

Inventor： JEONG, Se-Yoon ,  CHOI, Hae-Chul ,  SEO, Jeong-Il ,  BEACK, Seung-Kwon ,  JANG, In-Seon ,  KIM, Jae-Gon ,  MOON, Kyung-Ae ,  JANG, Dae-Young ,  HONG, Jin-Woo ,  KIM, Jin-Woong ,  LEE, Yung-Lyul ,  SIM, Dong-Gyu ,  OH, Seoung-Jun ,  AHN, Chang-Beom ,  KIM, Dae-Yeon ,  KIM, Dong-Kyun

IPC: H04N7/30

CPC classification number: H04N19/103 ,  H04N19/60

Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes: a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

Abstract translation: 本发明公开了一种使用离散余弦变换（DCT）扫描的编码装置，其包括：模式选择装置，用于选择帧内预测的最佳模式; 帧内预测装置，用于根据在模式选择装置中选择的模式对输入的视频执行帧内预测; DCT和量化装置，用于对从帧内预测装置输出的块的残余系数进行DCT和量化; 以及熵编码装置，用于通过使用基于残差系数的像素相似度确定的扫描模式，对从DCT获取的DCT系数和量化执行熵编码。

公开(公告)号：WO2008004742A1

公开(公告)日：2008-01-10

申请号：PCT/KR2007/000927

申请日：2007-02-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY RESEARCH INSTITUTE FOR INDUSTRY COOPERATION ,  INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY ,  JEONG, Se-Yoon ,  CHOI, Hae-Chul ,  SEO, Jeong-Il ,  BEACK, Seung-Kwon ,  JANG, In-Seon ,  KIM, Jae-Gon ,  MOON, Kyung-Ae ,  JANG, Dae-Young ,  HONG, Jin-Woo ,  KIM, Jin-Woong ,  AHN, Chang-Beom ,  OH, Seoung-Jun ,  SIM, Dong-Gyu ,  PARK, Ho-Chong ,  LEE, Yung-Lyul ,  JEON, Su-Yeol

Inventor： JEONG, Se-Yoon ,  CHOI, Hae-Chul ,  SEO, Jeong-Il ,  BEACK, Seung-Kwon ,  JANG, In-Seon ,  KIM, Jae-Gon ,  MOON, Kyung-Ae ,  JANG, Dae-Young ,  HONG, Jin-Woo ,  KIM, Jin-Woong ,  AHN, Chang-Beom ,  OH, Seoung-Jun ,  SIM, Dong-Gyu ,  PARK, Ho-Chong ,  LEE, Yung-Lyul ,  JEON, Su-Yeol

IPC: H04N7/30

CPC classification number: H04N19/649 ,  H04N19/62

Abstract: Provided are an apparatus for multi-stage transforming a plurality of unit blocks in multi- dimension that can improve compression efficiency of video data by collecting Discrete Cosine Transforming (DCT) coefficients of neighboring blocks and performing an additional transformation based on the DCT coefficients of an original picture and a differential picture. The method includes the steps of : performing a Discrete Cosine Transform (DCT) on inputted picture data and selecting R blocks of a predetermined size from DCT picture data, where R is a natural number equal to or greater than 2; arranging DCT coefficients of each of the selected R blocks according to each frequency in one- dimension; and performing one-dimensional transformation again on the DCT coefficients arranged in one-dimension.

Abstract translation: 提供了一种用于多级变换多维单元块的装置，其可以通过收集相邻块的离散余弦变换（DCT）系数并且基于DCT系数的DCT系数执行附加变换，从而提高视频数据的压缩效率 原始图片和差异图片。 该方法包括以下步骤：对输入的图像数据执行离散余弦变换（DCT），并从DCT图像数据中选择预定尺寸的R个块，其中R是等于或大于2的自然数; 根据每个频率在一维中排列所选择的R个块中的每一个的DCT系数; 并对一维排列的DCT系数再次进行一维变换。

公开(公告)号：WO2007011147A1

公开(公告)日：2007-01-25

申请号：PCT/KR2006/002804

申请日：2006-07-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KIM, Dae-Hee ,  HUR, Nam-Ho ,  LEE, Soo-In ,  LEE, Yung-Lyul ,  KIM, Jong-Ryul ,  CHO, Suk-Hee

Inventor： KIM, Dae-Hee ,  HUR, Nam-Ho ,  LEE, Soo-In ,  LEE, Yung-Lyul ,  KIM, Jong-Ryul ,  CHO, Suk-Hee

IPC: H04N7/32

CPC classification number: H04N19/50 ,  H04N19/114 ,  H04N19/136 ,  H04N19/52 ,  H04N19/527 ,  H04N19/58 ,  H04N19/597 ,  H04N19/60 ,  H04N19/61 ,  H04N19/94

Abstract: Provided are an apparatus and method for predictive coding/decoding for improving a compression rate of multiview video using one or two additional reference frame buffers. The predictive encoding apparatus includes: a multiview reference picture providing unit for providing a reference picture for a predictive encoding according to temporal and spatial GOP structure information; a prediction unit for creating a vector by predicting which part of the reference picture inputted from the multiview reference picture providing unit is referred by a picture to currently encode; a transforming and quantizing unit for obtaining a difference signal between the predicted signal inputted from the prediction unit and a picture signal to currently encode, transforming the obtained difference signal, quantizing the transformed signal, and compressing the quantized signal; and an entropy encoding unit for encoding the quantized signal and the vectors according to a predetermined scheme and outputting the encoded signal.

Abstract translation: 提供了一种用于使用一个或两个附加参考帧缓冲器来改善多视图视频的压缩率的预测编码/解码的装置和方法。 预测编码装置包括：多视图参考图像提供单元，用于根据时间和空间GOP结构信息提供用于预测编码的参考图像; 一个预测单元，用于通过预测由多视点参考图像提供单元输入的参考图像的哪个部分被一个图片参照当前编码来创建一个矢量; 变换和量化单元，用于获得从预测单元输入的预测信号与图像信号之间的差分信号，以当前编码，变换所获得的差分信号，量化变换的信号，并压缩量化信号; 以及熵编码单元，用于根据预定方案对量化信号和向量进行编码，并输出编码信号。

公开(公告)号：WO2009002088A1

公开(公告)日：2008-12-31

申请号：PCT/KR2008/003628

申请日：2008-06-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHO, Sukhee ,  HUR, Namho ,  KIM, Jin Woong ,  LEE, Soo In ,  LEE, Yung-Lyul ,  LIM, Sung-Chang

Inventor： CHO, Sukhee ,  HUR, Namho ,  KIM, Jin Woong ,  LEE, Soo In ,  LEE, Yung-Lyul ,  LIM, Sung-Chang

IPC: H04N7/24

CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

Abstract: A multi-view video coding (MVC) system, a decoding system, and a bitstream extraction system are provided for decoding a base view and supporting a view random access. The MVC system includes: a coding unit that codes the video signal to a base view and a multi-view; and a base view identifier adding unit that adds a base view identifier of the base view to a parameter set.

Abstract translation: 提供了多视点视频编码（MVC）系统，解码系统和比特流提取系统，用于对基本视图进行解码并支持视图随机访问。 MVC系统包括：将视频信号编码为基本视图和多视图的编码单元; 以及基本视图标识符添加单元，其将基本视图的基本视图标识符添加到参数集。

公开(公告)号：WO2008035842A1

公开(公告)日：2008-03-27

申请号：PCT/KR2007/001809

申请日：2007-04-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY RESEARCH INSTITUTE FOR INDUSTRY COOPERATION ,  INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY ,  KIM, Dae-Yeon ,  SEO, Jeong-Il ,  BEACK, Seung-Kwon ,  JANG, In-Seon ,  JANG, Dae-Young ,  KIM, Jae-Gon ,  MOON, Kyung-Ae ,  HONG, Jin-Woo ,  KIM, Jin-Woong ,  OH, Seoung-Jun ,  AHN, Chang-Beom ,  JEONG, Se-Yoon ,  CHOI, Hae-Chul ,  LEE, Yung-Lyul ,  SIM, Dong-Gyu ,  LIM, Sung-Chang

Inventor： KIM, Dae-Yeon ,  SEO, Jeong-Il ,  BEACK, Seung-Kwon ,  JANG, In-Seon ,  JANG, Dae-Young ,  KIM, Jae-Gon ,  MOON, Kyung-Ae ,  HONG, Jin-Woo ,  KIM, Jin-Woong ,  OH, Seoung-Jun ,  AHN, Chang-Beom ,  JEONG, Se-Yoon ,  CHOI, Hae-Chul ,  LEE, Yung-Lyul ,  SIM, Dong-Gyu ,  LIM, Sung-Chang

IPC: H04N7/30 ,  H04N7/24

CPC classification number: H04N19/61 ,  H04N19/122 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46

Abstract: Provided is an apparatus and method for encoding and decoding using alternative transform units according to the correlation of residual signals. The video encoding apparatus includes a first transforming unit for performing discrete cosine transform (DCT), first quantization, first inverse quantization, and inverse DCT on a block basis onto residual coefficients generated after intra frame prediction or inter frame prediction; a second transforming unit for performing discrete sine transform (DST), second quantization, second inverse quantization, and inverse DST on a block basis onto the residual coefficients; a selecting unit for selecting one having a high compression rate between the first and second transforming units for each block through performing rate-distortion optimization; and a flag marking unit for recording information about the selected transforming unit at a flag bit provided on a macroblock basis.

Abstract translation: 提供了根据残差信号的相关性使用替代变换单元进行编码和解码的装置和方法。 视频编码装置包括：第一变换单元，用于以块为基础，对帧内预测或帧间预测后生成的残差系数进行离散余弦变换（DCT），第一量化，第一逆量化和逆DCT; 第二变换单元，用于以块为基础对剩余系数执行离散正弦变换（DST），第二量化，第二逆量化和反向DST; 选择单元，用于通过执行速率失真优化来为每个块选择具有高压缩率的第一和第二变换单元之间的压缩率; 以及标志标记单元，用于在以宏块为基础提供的标志位处记录关于所选择的变换单元的信息。

公开(公告)号：WO2007081117A1

公开(公告)日：2007-07-19

申请号：PCT/KR2007/000083

申请日：2007-01-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHO, Suk-Hee ,  HUR, Namho ,  LEE, Soo-In ,  LEE, Yung-Lyul ,  HUR, Jae-Ho ,  KIM, Dae-Yeon ,  LEE, Yung-Ki

Inventor： CHO, Suk-Hee ,  HUR, Namho ,  LEE, Soo-In ,  LEE, Yung-Lyul ,  HUR, Jae-Ho ,  KIM, Dae-Yeon ,  LEE, Yung-Ki

IPC: H04N7/24

CPC classification number: H04N19/114 ,  H04N19/597

Abstract: Provided is an inter-view frame reference method and apparatus used in multi-view video encoding. In the present invention, pictures at the sequence of spatially closer viewpoints are preferentially referred to from among pictures at previously encoded viewpoints in each Group Of Pictures (GOP), except for a basic GOP that makes only a temporal frame reference at its viewpoint, an Instantaneous Decoder Refresh (IDR) picture, and pictures at the last point of time of encoding.

Abstract translation: 提供了一种在多视点视频编码中使用的视角间参考方法和装置。 在本发明中，除了在其视点上仅作为时间帧参考的基本GOP之外，在每组图像（GOP）中，在先前编码的视点的图像之间优先地参照空间关闭视点序列的图像， 即时解码器刷新（IDR）图像，以及最后编码时刻的图像。

公开(公告)号：WO2007046644A1

公开(公告)日：2007-04-26

申请号：PCT/KR2006/004260

申请日：2006-10-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY RESEARCH INSTITUTE FOR INDUSTRY COOPERATION ,  SEO, Jeong-Il ,  KIM, Wook-Joong ,  KIM, Kyu-Heon ,  KANG, Kyeong-Ok ,  HONG, Jin-Woo ,  LEE, Yung-Lyul ,  HAN, Ki-Hun ,  HUR, Jae-Ho ,  SIM, Dong-Gyu ,  OH, Seoung-Jun

Inventor： SEO, Jeong-Il ,  KIM, Wook-Joong ,  KIM, Kyu-Heon ,  KANG, Kyeong-Ok ,  HONG, Jin-Woo ,  LEE, Yung-Lyul ,  HAN, Ki-Hun ,  HUR, Jae-Ho ,  SIM, Dong-Gyu ,  OH, Seoung-Jun

IPC: H04N7/32

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an apparatus and method for encoding/decoding moving pictures based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

Abstract translation: 提供了一种基于自适应扫描对运动图像进行编码/解码的装置和方法。 运动图像装置和方法可以通过对预定大小的块执行帧内预测，​​并且根据帧内预测模式对从残差信号的离散余弦变换（DCT）获取的量化和量化进行不同的量化，从而基于自适应扫描来增加压缩率 。 运动图像编码装置包括：模式选择器，用于选择和输出预测模式; 预测器，用于基于预测模式预测要编码的输入视频的像素的像素值，从而输出残差信号块; 变换/量化单元，用于对残差信号块执行DCT并量化变换后的残差信号块; 以及用于基于预测模式自适应扫描和编码量化残差信号块的编码器。

公开(公告)号：WO2007043775A1

公开(公告)日：2007-04-19

申请号：PCT/KR2006/004000

申请日：2006-10-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY RESEARCH INSTITUTE FOR INDUSTRY COOPERATION ,  SEO, Jeong-Il ,  SIM, Dong-Gyu ,  KIM, Wook-Joong ,  KIM, Kyu-Heon ,  KANG, Kyeong-Ok ,  HONG, Jin-Woo ,  OH, Seung-Jun ,  LEE, Yung-Lyul ,  AHN, Chang-Beom ,  PARK, Sea-Nae

Inventor： SEO, Jeong-Il ,  SIM, Dong-Gyu ,  KIM, Wook-Joong ,  KIM, Kyu-Heon ,  KANG, Kyeong-Ok ,  HONG, Jin-Woo ,  OH, Seung-Jun ,  LEE, Yung-Lyul ,  AHN, Chang-Beom ,  PARK, Sea-Nae

IPC: H04N7/24

CPC classification number: H04N21/2365 ,  H04N21/21805 ,  H04N21/23424 ,  H04N21/2383 ,  H04N21/4122 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/43615 ,  H04N21/44016

Abstract: Provided is a multiple camera system, and more particularly, a method and apparatus for processing hopping default views in an apparatus for encoding/decoding video streams of multiple view positions. The encoding apparatus for the multiple camera system includes an encoder for receiving video signals of multiple view positions, and encoding the video signals based on a predetermined default Group of Pictures (GoP); a default GoP selector for providing the default GoP information to the encoder; and a multiplexer for multiplexing the encoded video signals and sequentially outputting only the default GoP.

Abstract translation: 提供了一种多摄像机系统，更具体地，涉及一种用于对多视点位置的视频流进行编码/解码的装置中的跳跃默认视图的处理方法和装置。 用于多相机系统的编码装置包括用于接收多视点位置的视频信号的编码器，并且基于预定的默认图像组（GoP）对视频信号进行编码; 用于向编码器提供默认GoP信息的默认GoP选择器; 以及多路复用器，用于对编码的视频信号进行多路复用，并且仅依次输出默认的GoP。