公开(公告)号：EP2661080A4

公开(公告)日：2016-06-29

申请号：EP11852454

申请日：2011-12-30

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KYUNG HEE UNIV IND COOP GROUP

Inventor： JEONG SE YOON ,  KIM HUI YONG ,  LIM SUNG CHANG ,  LEE JIN HO ,  LEE HA HYUN ,  KIM JONG HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  AHN CHIE TEUK ,  PARK GWANG HOON ,  KIM KYUNG YONG ,  LEE HAN SOO ,  KIM TAE RYONG

IPC: H04N19/105 ,  H04N19/50 ,  H04N19/196 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/00569 ,  H04N19/105 ,  H04N19/196 ,  H04N19/197 ,  H04N19/61

Abstract: According to one embodiment of the present invention, a video information encoding method comprises: a step of predicting information of the current coding unit to generate prediction information; and a step of determining whether the information of the current coding unit coincides with the prediction information. If the information of the current coding unit coincides with the prediction information, a flag indicating that the information of the current coding unit coincides with the prediction information is encoded and transmitted. If the information of the current coding unit does not coincide with the prediction information, a flag indicating that the information of the current coding unit does not coincide with the prediction information is encoded and transmitted and the information of the current coding unit is encoded and transmitted. In the step of generating prediction information, the prediction information may be generated using the information on the coding unit adjacent to the current coding unit.

公开(公告)号：EP2806640A4

公开(公告)日：2016-04-27

申请号：EP13738659

申请日：2013-01-21

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N19/126 ,  H04N19/50 ,  H04N19/105 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/126 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/198 ,  H04N19/463 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70

Abstract: The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix.

公开(公告)号：EP2658262A4

公开(公告)日：2016-01-06

申请号：EP11850654

申请日：2011-12-21

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/13 ,  H04N19/157 ,  H04N19/169 ,  H04N19/196 ,  H04N19/50 ,  H04N19/593

CPC classification number: H04N19/107 ,  H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/13 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/1887 ,  H04N19/196 ,  H04N19/50 ,  H04N19/52 ,  H04N19/521 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: An intra prediction method according to the present invention comprises the following steps: deriving neighboring prediction mode information from a left neighboring prediction mode and a top neighboring prediction mode; deriving an intra prediction mode for a target unit to be decoded, using the derived neighboring prediction mode information; and performing intra prediction for the target unit to be decoded, based on the intra prediction mode. According to the present invention, video encoding/decoding efficiency may be improved.

Abstract translation: 根据本发明的帧内预测方法包括以下步骤：从左邻近预测模式和顶邻近预测模式导出相邻预测模式信息; 使用导出的相邻预测模式信息来导出要解码的目标单元的帧内预测模式; 并且基于帧内预测模式对要解码的目标单元执行帧内预测。 根据本发明，可以提高视频编码/解码效率。

公开(公告)号：EP2806635A4

公开(公告)日：2015-12-02

申请号：EP13738011

申请日：2013-01-18

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N19/196 ,  H04N19/50 ,  H04N19/105 ,  H04N19/182 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82

CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/182 ,  H04N19/196 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82

Abstract: A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a final correction value that is calculated by performing an arithmetic right shift by a binary digit 1 for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. Thus, the operational complexity during image encoding/decoding can be reduced.

公开(公告)号：EP2763411A4

公开(公告)日：2015-10-07

申请号：EP12835079

申请日：2012-09-27

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N19/117 ,  H04N19/70 ,  H04N19/61 ,  H04N19/82

CPC classification number: H04N19/196 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

公开(公告)号：EP2806637A4

公开(公告)日：2015-09-23

申请号：EP13738327

申请日：2013-01-18

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N19/13 ,  H04N19/52 ,  H04N19/105 ,  H04N19/50 ,  H04N19/51

CPC classification number: H04N19/52

Abstract: A method for decoding an image according to the present invention comprises the steps of: decoding a residual block by quantizing and inverse transforming an entropy-decoded residual block; generating a prediction block via motion compensation; and decoding an image by adding the decoded residual block to the prediction block, wherein on the basis of the maximum number of motion vector candidates of the motion vector candidate list related to the prediction block, a motion vector candidate list is adjusted by adding a particular motion vector candidate or by discarding a portion from among the motion vector candidates, and in the prediction block generation step, a prediction motion vector of the prediction block is determined on the basis of the adjusted motion vector candidate list. Accordingly, the complexity of arithmetic operations is reduced during encoding/decoding of an image.

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.