公开(公告)号：WO2012115434A3

公开(公告)日：2012-12-20

申请号：PCT/KR2012001311

申请日：2012-02-21

Applicant: KOREA ELECTRONICS TELECOMM ,  INDUSTRY ACADEMIC COOPERATION FOUNDATION HANBAT NATIOANL UNIV ,  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 ,  CHOI HAE CHUL

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 ,  CHOI HAE CHUL

IPC: H04N7/32

CPC classification number: H04N19/573

Abstract: Disclosed are a method for encoding and decoding images using a plurality of reference images and a device using the method. The decoding method comprises the steps of: decoding predictive direction information; and decoding reference picture index information on the basis of said predictive direction information. Thus, the invention can increase an encoding efficiency by reducing the number of reference picture indexes.

Abstract translation: 公开了一种使用多个参考图像对图像进行编码和解码的方法以及使用该方法的设备。 解码方法包括以下步骤：解码预测方向信息; 以及基于所述预测方向信息对参考图片索引信息进行解码。 因此，本发明可以通过减少参考图片索引的数量来提高编码效率。

公开(公告)号：WO2012044116A2

公开(公告)日：2012-04-05

申请号：PCT/KR2011007261

申请日：2011-09-30

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE HA HYUN ,  KIM HUI YONG ,  LIM SUNG CHANG ,  JEONG SE YOON ,  KIM JONG HO ,  LEE JIN HO ,  CHO SUK HEE ,  CHOI JIN SOO ,  KIM JIN WOONG ,  AHN CHIE TEUK ,  KO SUNG JEA ,  YOON YEO JIN ,  BYUN KEUN YUNG

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

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/82

Abstract: Provided are a method and apparatus for encoding/decoding video. The method and apparatus of the present invention involve generating a first prediction block for a block to be decoded, calculating a filter coefficient on the basis of the block adjacent to the first prediction block, and performing filtering on the first prediction block using the filter coefficient so as to generate a second prediction block if information relating to the performance of filtering indicates that filtering should be performed. According to the present invention, accuracy in video prediction and encoding performance are improved.

Abstract translation: 提供了一种用于编码/解码视频的方法和设备。 本发明的方法和设备涉及生成要解码的块的第一预测块，基于与第一预测块相邻的块来计算滤波器系数，并且使用滤波器系数对第一预测块执行滤波 以便如果与过滤性能有关的信息指示应该执行过滤，则生成第二预测块。 根据本发明，提高了视频预测和编码性能的准确性。

公开(公告)号：WO2011126349A2

公开(公告)日：2011-10-13

申请号：PCT/KR2011002514

申请日：2011-04-11

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

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

IPC: H04N7/32

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/82

Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction comprises the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.

Abstract translation: 提供了一种使用自适应滤波器来执行帧内预测的方法和装置。 用于执行帧内预测的方法包括以下步骤：基于当前块的相邻块的信息，确定是否对参考像素值应用第一滤波器; 当确定施加第一过滤器时，将第一过滤器应用于参考像素值; 基于参考像素值对当前块执行帧内预测; 根据相邻块的信息，根据帧内预测性能来预测是否根据当前块的各预测模式对预测值应用第二滤波器; 以及当确定应用所述第二滤波器时，根据当前块的每个预测模式对所述预测值应用所述第二滤波器。

公开(公告)号：WO2012118359A3

公开(公告)日：2012-12-13

申请号：PCT/KR2012001620

申请日：2012-03-05

Applicant: KOREA ELECTRONICS TELECOMM ,  LIM SUNG CHANG ,  KIM HUI YONG ,  JEONG SE YOON ,  KIM JONG HO ,  LEE HA HYUN ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG

Inventor： LIM SUNG CHANG ,  KIM HUI YONG ,  JEONG SE YOON ,  KIM JONG HO ,  LEE HA HYUN ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG

IPC: H04N7/26

CPC classification number: H04N19/124 ,  H04N19/134

Abstract: Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.

Abstract translation: 公开了一种用于确定色差分量量化参数的方法和使用该方法的设备。 用于解码图像的方法可以包括以下步骤：基于变换单元的大小信息解码色差分量量化参数偏移; 并且基于解码的色差分量量化参数偏移来计算色差分量量化参数索引。 因此，本发明通过在执行量化时根据变换单元的大小应用不同的色差分量量化参数来实现有效量化。

公开(公告)号：WO2012099433A3

公开(公告)日：2012-12-06

申请号：PCT/KR2012000540

申请日：2012-01-20

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM JONG HO ,  KIM HUI YONG ,  LIM SUNG CHANG ,  LEE HA HYUN ,  LEE JIN HO ,  JEONG SE YOON ,  CHOI JIN SOO ,  KIM JIN WOONG ,  AHN CHIE TEUK

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

IPC: H04N7/26

CPC classification number: H04N19/1887 ,  H04N19/61 ,  H04N19/91

Abstract: Disclosed is an entropy coding method using an index mapping table, and an apparatus using the method. An image-decoding method comprises: a step of mapping an inputted codeword to a code number with reference to an inverse codeword mapping table, and calculating the mapped code number in a table index; and a step of updating the inverse mapping table based on the accumulated number of occurrences of the code number, the number of sequential occurrences of the code number, neighbor block encoding/decoding information, and/or threshold value information for updating the inverse index mapping table. According to the present invention, an index mapping table is realigned based on a certain condition, thereby improving encoding/decoding efficiency.

Abstract translation: 公开了使用索引映射表的熵编码方法和使用该方法的装置。 图像解码方法包括：参照反码字映射表将输入的码字映射到码号，并计算表索引中的映射码数的步骤; 以及基于代码号的出现次数，代码号的顺序出现次数，相邻块编码/解码信息和/或用于更新反向索引映射的阈值信息来更新反向映射表的步骤 表。 根据本发明，基于特定条件重新分配索引映射表，从而提高编码/解码效率。

公开(公告)号：WO2012081949A3

公开(公告)日：2012-09-07

申请号：PCT/KR2011009772

申请日：2011-12-19

Applicant: KOREA ELECTRONICS TELECOMM ,  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

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: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/52 ,  H04N19/70

Abstract: An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.

Abstract translation: 根据本发明的帧间预测方法包括：用于导出与当前图片中的待解码单元有关的参考运动信息的步骤; 以及使用已经导出的参考运动信息来对要解码的单元执行运动补偿的步骤。 根据本发明，可以提高图像编码/解码效率。

公开(公告)号：WO2012105807A2

公开(公告)日：2012-08-09

申请号：PCT/KR2012000770

申请日：2012-01-31

Applicant: KOREA ELECTRONICS TELECOMM ,  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

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

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.

Abstract translation: 本发明涉及一种使用运动矢量对图像进行编码/解码的方法和设备。 根据本发明的一个实施例，提供了一种图像解码方法。 该图像解码方法包括以下步骤：剪切具有预定动态范围的参考图片的运动矢量，以生成剪切后的运动矢量; 将剪切的运动矢量存储在缓冲器中; 使用存储在缓冲器中的运动矢量导出要解码的块的运动矢量; 并使用要解码的块的运动矢量执行帧间预测解码。 根据本发明，可以减少存储运动矢量所需的存储空间的大小。

公开(公告)号：WO2012173439A3

公开(公告)日：2013-04-04

申请号：PCT/KR2012004777

申请日：2012-06-15

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  LEE HA HYUN ,  KANG JUNG WON ,  CHOI JIN SOO ,  KIM JIN WOONG ,  SIM DONG GYU ,  CHOI HYO MIN ,  NAM JUNG HAK

Inventor： LEE HA HYUN ,  KANG JUNG WON ,  CHOI JIN SOO ,  KIM JIN WOONG ,  SIM DONG GYU ,  CHOI HYO MIN ,  NAM JUNG HAK

IPC: H04N19/30 ,  H04N19/105

CPC classification number: H04N19/30 ,  H04N19/00424 ,  H04N19/103 ,  H04N19/11 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/36 ,  H04N19/503 ,  H04N19/59

Abstract: The present invention relates to a method and an apparatus for interlayer intra-prediction, and the method for interlayer intra-prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied.

Abstract translation: 本发明涉及一种用于层间预测的方法和装置，以及根据本发明的层间预测方法，包括以下步骤：决定是否对增强层应用层间预测; 并且当应用了层间预测时，基于从参考层的被解码的参考图像推广并生成的参考信息来对增强层的当前块执行预测。

公开(公告)号：WO2012067412A3

公开(公告)日：2012-07-12

申请号：PCT/KR2011008724

申请日：2011-11-15

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  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 ,  SIM DONG GYU ,  PARK SEA NAE ,  RYU EUN KYUNG ,  OH SEOUNG JUN ,  PARK GWANG HOON

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 ,  SIM DONG GYU ,  PARK SEA NAE ,  RYU EUN KYUNG ,  OH SEOUNG JUN ,  PARK GWANG HOON

IPC: H04N7/26

CPC classification number: H03M7/3079 ,  H04N19/91

Abstract: The present invention relates to an entropy encoding method comprising the following steps: updating probability information using the update information derived based on a bit stream received from an encoder; deriving a bin corresponding to the current codeword based on the updated probability information; and performing the inverse binarization of the derived bin to acquire a syntax element. According to the present invention, video-encoding/decoding efficiency may be improved.

Abstract translation: 本发明涉及熵编码方法，包括以下步骤：使用基于从编码器接收的比特流导出的更新信息来更新概率信息; 基于更新的概率信息导出与当前码字对应的bin; 并执行导出的bin的逆二值化以获取语法元素。 根据本发明，可以提高视频编码/解码效率。

公开(公告)号：WO2011139121A3

公开(公告)日：2012-03-08

申请号：PCT/KR2011003401

申请日：2011-05-06

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  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

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: H04N7/26 ,  H04N7/32

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: 本发明涉及通过跳过编码对图像进行编码和解码的装置和方法。 执行帧内预测的通过跳过编码的图像编码方法包括：对编码对象图像中的编码对象信号之前重构的信号进行滤波处理; 使用滤波后的重构信号生成编码对象信号的预测信号; 将生成的预测信号设置为编码对象信号的重构信号; 并且不对基于编码对象信号和预测信号之间的差异可以产生的残差信号进行编码，从而对编码对象信号执行跳过编码。