公开(公告)号：EP1552723A4

公开(公告)日：2010-02-17

申请号：EP03751564

申请日：2003-10-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JEONG IL ,  JANG DAE YOUNG ,  KANG KYEONG OK ,  KIM JIN WOONG ,  AHN CHIETEUK

IPC: H04S7/00 ,  H04R25/00 ,  H04S1/00

CPC classification number: H04S1/007

公开(公告)号：EP1183651A4

公开(公告)日：2005-02-23

申请号：EP00942495

申请日：2000-07-07

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM MUNCHURL ,  KIM JIN WOONG ,  RO YONG MAN ,  YOU KI WON

IPC: G06T1/00 ,  G06F17/14 ,  G06F17/30 ,  G06K9/52 ,  G06K9/64 ,  G06T7/00 ,  G06T7/40 ,  G06T15/00

CPC classification number: G06K9/6203 ,  G06F17/30262 ,  G06K9/522 ,  G06T7/42

Abstract: The present invention relates to a texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of Polar coordinate system. The texture description method in the frequency domain comprises: a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the texture feature values of the image from the respective feature channels; and a third step of constituting a texture descriptor of the image in a vector form using the texture feature values extracted from the respective feature channels of the frequency layout. According to the present invention, in a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotation- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

Abstract translation: 频域中的纹理描述方法和使用其的基于纹理的检索方法，其中将图像信号转换成极坐标系的频域中的图像信号。 频域中的纹理描述方法包括通过将频域划分成一组特征信道来产生频率布局的第一步骤; 从各个特征通道提取图像的纹理特征值的第二步骤; 以及第三步骤，使用从频率布局的各个特征通道提取的纹理特征值，以向量形式构成图像的纹理描述符。 在频域中描述的基于纹理的检索中，提供了一种能够满足相关或全部检索条件的检索方法，如相关纹理图像的缩放，旋转和强度不变检索。 此外，提供了一种计算粗略的纹理方案以提供检索中的浏览功能的检索方法。

公开(公告)号：EP2942964A4

公开(公告)日：2016-06-08

申请号：EP14735426

申请日：2014-01-06

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KANG JUNG WON ,  LEE HA HYUN ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG

IPC: H04N19/30 ,  H04N19/187 ,  H04N19/70

CPC classification number: H04N19/187 ,  H04N19/30 ,  H04N19/70

Abstract: Disclosed are an image encoding/decoding method and device supporting a plurality of layers. The image decoding method supporting the plurality of layers comprises the steps receiving a bitstream comprising the plurality of layers; and decoding the bitstream so as to acquire maximum number information about sublayers with respect to each of the plurality of layers.

公开(公告)号：EP2840791A4

公开(公告)日：2015-12-23

申请号：EP13778886

申请日：2013-04-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LIM SUNG CHANG ,  KIM HUI YONG ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG

IPC: H04N19/126

CPC classification number: H04N19/126 ,  H04N19/129 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: A method and a device for encoding/decoding an image are disclosed. The method for decoding an image comprises the steps of: decoding information on a quantization matrix; and restoring the quantization matrix on the basis of the information on the quantization matrix, wherein the information on the quantization matrix includes information indicating a DC value of the quantization matrix and/or information indicating differential values of quantization matrix coefficients.

Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 解码图像的方法包括以下步骤：解码量化矩阵上的信息; 并且根据关于量化矩阵的信息来恢复量化矩阵，其中关于量化矩阵的信息包括指示量化矩阵的DC值的信息和/或指示量化矩阵系数的差分值的信息。

公开(公告)号：EP2757784A4

公开(公告)日：2015-08-26

申请号：EP12832262

申请日：2012-09-14

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV SOGANG IND UNIV COOP FOUN

Inventor： LIM SUNG CHANG ,  KIM HUI YONG ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  KIM JAE GON ,  LEE SANG YONG ,  PARK UN KI

IPC: H04N19/105 ,  H04N19/51 ,  H04N19/139 ,  H04N19/176 ,  H04N19/52 ,  H04N19/56 ,  H04N19/70

CPC classification number: H04N19/56 ,  H04N19/105 ,  H04N19/13 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70

公开(公告)号：EP2654302A4

公开(公告)日：2015-08-05

申请号：EP11848474

申请日：2011-12-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LIM SUNG CHANG ,  KIM HUI YONG ,  JEONG SE YOON ,  CHO SUK HEE ,  KIM JONG HO ,  LEE HA HYUN ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  AHN CHIE TEUK

IPC: H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/44 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51

CPC classification number: H04N19/44 ,  H04N19/50 ,  H04N19/503 ,  H04N19/52 ,  H04N19/597

Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/ decoding efficiency can be improved.

公开(公告)号：EP2658253A4

公开(公告)日：2015-06-10

申请号：EP11849915

申请日：2011-12-22

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE YONG JU ,  LEE TAE JIN ,  KANG KYEONG OK ,  KIM JIN WOONG ,  AHN CHIE TEUK

IPC: H04N7/24 ,  H04H20/89

CPC classification number: G10L19/167 ,  G10L19/008 ,  G10L19/20 ,  H04H20/89 ,  H04H20/95 ,  H04N21/2335 ,  H04N21/4394 ,  H04N21/8106

公开(公告)号：EP2672708A4

公开(公告)日：2015-01-21

申请号：EP12742304

申请日：2012-01-31

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LIM SUNG CHANG ,  KIM HUI YONG ,  JEONG SE YOON ,  CHO SUK HEE ,  JUN DONG SAN ,  KIM JONG HO ,  LEE HA HYUN ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG

IPC: H04N19/51 ,  H04N19/61 ,  H04N19/426 ,  H04N19/44 ,  H04N19/503 ,  H04N19/513

CPC classification number: H04N19/00733 ,  H04N19/426 ,  H04N19/44 ,  H04N19/513 ,  H04N19/61

Abstract: The present invention relates to a method and apparatus for encoding/decoding image using a motion vector. According to one embodiment of the present invention, an image-decoding method is provided. The image-decoding method comprises the following steps: clipping a motion vector of a reference picture with a predetermined dynamic range so as to generate a clipped motion vector; storing the clipped motion vector in a buffer; deriving a motion vector of a block to be decoded using the motion vector stored in the buffer; and performing inter-prediction decoding using the motion vector of the block to be decoded. According to the present invention, the size of a memory space required to store a motion vector may be reduced.

公开(公告)号：EP2723078A4

公开(公告)日：2014-06-18

申请号：EP12803047

申请日：2012-06-20

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE JIN HO ,  KIM HUI YONG ,  LIM SUNG CHANG ,  CHOI JIN SOO ,  KIM JIN WOONG

IPC: H04N19/117 ,  H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/50 ,  H04N19/96

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/136 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/80 ,  H04N19/82 ,  H04N19/96

Abstract: According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.

Abstract translation: 根据本发明，图像编码/解码方法包括以下步骤：对当前块执行帧内预测，​​以产生预测块; 基于所述当前块的帧内预测模式对所述预测块中的滤波目标像素进行滤波，以生成最终预测块; 以及基于与当前块对应的重构差分块和最终预测块生成重建块。 根据本发明，可以提高图像编码/解码效率。

公开(公告)号：EP2515538A4

公开(公告)日：2013-11-27

申请号：EP10837892

申请日：2010-12-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LIM SUNG CHANG ,  KIM JONG HO ,  CHOI HAE CHUL ,  KIM HUI YONG ,  LEE HA HYUN ,  LEE JIN HO ,  JEONG SE YOON ,  CHO SUK HEE ,  CHOI JIN SOO ,  HONG JIN WOO ,  KIM JIN WOONG

IPC: H04N7/26 ,  H04N7/34 ,  H04N7/36

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/46 ,  H04N19/503 ,  H04N19/593