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

公开(公告)号：EP2941002A4

公开(公告)日：2016-07-06

申请号：EP13867028

申请日：2013-12-24

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 ,  H04N19/31 ,  H04N19/33 ,  H04N19/34 ,  H04N19/36 ,  H04N19/50 ,  H04N19/503 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/52 ,  H04N19/187 ,  H04N19/30 ,  H04N19/31 ,  H04N19/33 ,  H04N19/34 ,  H04N19/36 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

公开(公告)号：EP2869557A4

公开(公告)日：2016-07-06

申请号：EP13809347

申请日：2013-06-25

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

Inventor： KIM HUI YONG ,  LIM SUNG CHANG ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  PARK GWANG HOON ,  KIM KYUNG YONG

IPC: H04N19/159 ,  H04N19/129 ,  H04N19/176

CPC classification number: H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70

Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 用于编码图像的方法包括以下步骤：根据当前块是否是变换跳过块，导出当前块的残差信号的扫描类型; 以及将所述扫描类型应用于所述当前块的残差信号，其中，所述变换跳过块是未应用所述当前块的变换的块，并且基于表示当前块的变换是否为 应用。

公开(公告)号：EP2608540A4

公开(公告)日：2015-01-28

申请号：EP11818406

申请日：2011-08-17

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: H04N19/176 ,  H04N19/119 ,  H04N19/124 ,  H04N19/14 ,  H04N19/196 ,  H04N19/33 ,  H04N19/463 ,  H04N19/70

CPC classification number: H04N19/124 ,  H04N19/0009 ,  H04N19/119 ,  H04N19/14 ,  H04N19/176 ,  H04N19/196 ,  H04N19/33 ,  H04N19/463 ,  H04N19/70

Abstract: The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.

公开(公告)号：EP2568707A4

公开(公告)日：2014-08-13

申请号：EP11777602

申请日：2011-05-06

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

Inventor： LIM SUNG CHANG ,  LEE HA HYUN ,  JEONG SE YOON ,  KIM HUI YONG ,  CHO SUK HEE ,  KIM JONG HO ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  AHN CHIE TEUK ,  SIM DONG GYU ,  OH SEOUNG JUN ,  PARK GWANG HOON ,  PARK SEA NAE ,  JEON CHAN WOONG

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/17 ,  H04N19/46 ,  H04N19/593

CPC classification number: H04N19/117 ,  H04N19/109 ,  H04N19/132 ,  H04N19/159 ,  H04N19/17 ,  H04N19/174 ,  H04N19/192 ,  H04N19/46 ,  H04N19/50 ,  H04N19/593 ,  H04N19/82

Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

Abstract translation: 本发明涉及的装置和编码方法以及通过跳过编码解码的图像。 通过跳过编码的图像编码方法，执行帧内预测，​​包括：对所述信号的所有其之前重构编码对象的信号与编码对象图像的滤波手术; 使用滤波的重构信号，以产生用于编码对象信号的预测信号; 设置所生成的预测信号，作为所述编码对象信号的重构信号; 和不编码可在编码对象信号和预测信号之间的差的基础上产生的残留信号，由此执行跳过编码对象信号编码。

公开(公告)号：KR20120069809A

公开(公告)日：2012-06-29

申请号：KR20100131114

申请日：2010-12-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM EUN KYUNG ,  YOON CHUL SIK ,  LEE JIN HO ,  KIM YOUNG HAN

IPC: H04W28/02 ,  H04L1/18 ,  H04L12/801 ,  H04W4/06

CPC classification number: H04W28/0236 ,  H04L1/1854 ,  H04L1/1887 ,  H04L47/14 ,  H04W4/06 ,  H04W28/0242

Abstract: PURPOSE: A method and an apparatus for selectively restoring lost packets in a mobile worldwide interoperability for microwave access(WiMax) are provided to supply seamless video services and keep the existing quality of images. CONSTITUTION: An access control router(ACR) sets the priority of packets based on received priority information and includes a priority manager and a multicast broadcast service(MBS) distributed data path function. The priority manager manages and stores the priority information. The MBS distributed data path function transmits the priority information and the sequence information of the packets to a radio access station(RAS). The RAS includes a priority analyzer and an RAS buffering controller. The priority analyzer confirms the loss of packets received from the ACR and determines the re-reception of lost packets according to the priority information.

Abstract translation: 目的：提供一种用于选择性地恢复移动全球微波接入互操作性（WiMax）中的丢失分组的方法和装置，以提供无缝视频服务并保持图像的现有质量。 规定：接入控制路由器（ACR）根据接收到的优先级信息设置报文的优先级，并包括优先级管理器和组播广播业务（MBS）分布式数据路径功能。 优先级管理器管理和存储优先级信息。 MBS分布式数据路径功能将分组的优先级信息和序列信息发送到无线接入站（RAS）。 RAS包括优先级分析器和RAS缓冲控制器。 优先级分析器确认从ACR接收到的分组丢失，并根据优先级信息确定丢失分组的重新接收。