公开(公告)号：EP1972141A1

公开(公告)日：2008-09-24

申请号：EP07708435.8

申请日：2007-01-05

申请人： Electronics and Telecommunications Research Institute

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

IPC分类号： H04N7/24

CPC分类号： H04N19/114 ,  H04N19/597

摘要： 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.

公开(公告)号：EP1997318A1

公开(公告)日：2008-12-03

申请号：EP07715766.7

申请日：2007-03-22

申请人： Electronics and Telecommunications Research Institute

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

IPC分类号： H04N7/32

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

摘要： 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.

公开(公告)号：EP1905244A1

公开(公告)日：2008-04-02

申请号：EP06783325.1

申请日：2006-07-18

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC分类号： H04N7/32

CPC分类号： H04N19/50 ,  H04N19/114 ,  H04N19/136 ,  H04N19/52 ,  H04N19/527 ,  H04N19/58 ,  H04N19/597 ,  H04N19/60 ,  H04N19/61 ,  H04N19/94

摘要： 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.

公开(公告)号：EP2346258A2

公开(公告)日：2011-07-20

申请号：EP09818025.0

申请日：2009-10-05

申请人： Electronics and Telecommunications Research Institute

发明人： LIM, Sung-Chang ,  JEONG, Se Yoon ,  CHOI, Hae Chul ,  CHOI, Jin Soo ,  HONG, Jin Woo ,  LEE, Yung-Lyul ,  KIM, Dae-Yeon

IPC分类号： H04N7/50

CPC分类号： G06T9/007 ,  G06T9/004 ,  H04N7/17318 ,  H04N19/12 ,  H04N19/132 ,  H04N19/147 ,  H04N19/149 ,  H04N19/19 ,  H04N19/46 ,  H04N19/70 ,  H04N21/236

摘要： Disclosed is a data transmission system that transmits data by using a relay.
The relay selects a transmission terminal from among a plurality of terminals accessing a base station. A base station transmits base station data to the relay during a first time slot, and the transmission terminal transmits terminal data to the relay. The relay transmits terminal data to the base station during a second time slot, and transmits base station data to the transmission terminal.

公开(公告)号：EP1949703A1

公开(公告)日：2008-07-30

申请号：EP06799334.5

申请日：2006-10-19

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation

发明人： 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分类号： H04N7/32

CPC分类号： H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

摘要： 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 adoptive 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.

公开(公告)号：EP3154266A1

公开(公告)日：2017-04-12

申请号：EP16192982.3

申请日：2009-10-05

申请人： Electronics and Telecommunications Research Institute

发明人： LIM, Sung-Chang ,  JEONG, Se Yoon ,  CHOI, Hae Chul ,  HONG, Jin Woo ,  LEE, Yung-Lyul ,  KIM, Dae-Yeon ,  CHOI, Jin Soo

IPC分类号： H04N19/19 ,  H04N19/12 ,  H04N19/147 ,  H04N19/132 ,  H04N19/149 ,  H04N19/46 ,  H04N19/70 ,  H04N7/173 ,  H04N21/236

CPC分类号： G06T9/007 ,  G06T9/004 ,  H04N7/17318 ,  H04N19/12 ,  H04N19/132 ,  H04N19/147 ,  H04N19/149 ,  H04N19/19 ,  H04N19/46 ,  H04N19/70 ,  H04N21/236

摘要： Disclosed is an apparatus of decoding an image. The apparatus comprises: an inverse quantizing unit to determinine a scaling factor for inverse-quantizing transform coeffcients of a current block and inverse-quantize the transform coefficients of the current block based on both the determined scaling factor and a value resulting from dividing a quantization parameter by 6, wherein the scaling factor is determined based on a size of the current block, and wherein the scaling factor corresponding to each of a block with a 4x4 size and a block with an 8x8 size is pre-defined at the apparatus; a transform scheme decision unit to determine a transform scheme with respect to the inverse-quantized transform coefficients based on a first flag, wherein the first flag indicates either an inverse discrete cosine transform (DCT) or an inverse discrete sine transform (DST); an first inverse transform unit to perform inverse-transform on the inverse-quantized transform coeffcients by using the inverse DCT when the decided transform scheme is the inverse DCT; and an second inverse transform unit to perform the inverse-transform on the inverse-quantized transform coefficients by using the inverse DST when the decided transform scheme is the inverse DST.

摘要翻译： 本发明公开了一种对图像解码的装置。 该装置包括：逆量化单元到determinine的缩放因子进行逆量化变换当前块的coeffcients和逆量化基于两个确定性开采缩放因子，并从划分的量化参数得到的值与当前块的变换系数 通过如图6所示，worin缩放因子是确定的开采基于大小的当前块的，并且worin缩放因子对应于与4×4大小和8×8在尺寸与块的块的，在该设备被预先定义; 一个相对于变换方案决策单元确定性矿变换方案到逆量化的变换基于第一标志系数，worin第一标志表示逆离散余弦的任变换（DCT）或逆离散正弦变换（DST）; 在第一逆变换单元，用于执行通过使用逆DCT当决定变换方案对逆量化的变换coeffcients逆变换是逆DCT; 和在第二逆变换单元，用于执行所述逆量化的逆变换的变换系数通过使用逆DST当决定变换方案是逆DST。