公开(公告)号：EP2346259A2

公开(公告)日：2011-07-20

申请号：EP09818010.2

申请日：2009-10-01

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： CHOI, Hae Chul ,  JEONG, Se Yoon ,  LIM, Sung-Chang ,  CHOI, Jin Soo ,  HONG, Jin Woo ,  SIM, Dong Gyu ,  OH, Seoung-Jun ,  AHN, Chang-Beom ,  PARK, Gwang Hoon ,  KOOK, Seung Ryong ,  PARK, Sea-Nae ,  JEONG, Kwang-Su

IPC分类号： H04N7/50

CPC分类号： H04N19/91 ,  H04N19/11 ,  H04N19/124 ,  H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/44 ,  H04N19/463 ,  H04N19/50 ,  H04N19/587 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/96

摘要： The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.

摘要翻译： 本发明涉及一种图像编码和解码技术，更具体地说，涉及一种使用单向预测的图像编码器和解码器。 该图像编码器包括：将宏块划分为多个子块的分割单元，单向应用确定单元，用于确定是否将相同的预测模式应用于多个子块中的每一个;以及预测模式确定单元 基于所述单向应用确定单元的确定结果来确定关于所述多个子块中的每一个的预测模式。

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：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。