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：WO2012177053A3

公开(公告)日：2013-04-04

申请号：PCT/KR2012004883

申请日：2012-06-20

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE JIN HO ,  KIM HUI YONG ,  LIM SUNG CHANG ,  CHOI JIN SOO ,  KIM JIN WOONG

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/117

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; 基于当前块的帧内预测模式对预测块中的滤波目标像素执行滤波，以产生最终预测块; 并且基于与当前块对应的重构差分块和最终预测块来生成重建块。 根据本发明，可以提高图像编码/解码效率。

公开(公告)号：WO2012173449A3

公开(公告)日：2013-04-04

申请号：PCT/KR2012004807

申请日：2012-06-18

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM HUI YONG ,  LIM SUNG CHANG ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  KIM JAE GON ,  PARK DONG IL

Inventor： KIM HUI YONG ,  LIM SUNG CHANG ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG ,  KIM JAE GON ,  PARK DONG IL

IPC: H04N7/26

CPC classification number: H04N19/90 ,  H04N19/61 ,  H04N19/96

Abstract: The present invention relates to a video encoding method, to a video decoding method, and to an apparatus using same. The video encoding method according to one embodiment of the present invention comprises the steps of: determining a bit depth value per PCM sample for a current block to which a pulse coding modulation (PCM) is applied; and signaling information on the bit depth per PCM sample, wherein the information on the bit depth per PCM sample may contain the value of a difference with a reference value of the bit depth per PCM sample for the current block.

Abstract translation: 本发明涉及一种视频编码方法，一种视频解码方法以及使用该方法的装置。 根据本发明的一个实施例的视频编码方法包括以下步骤：为应用脉冲编码调制（PCM）的当前块确定每个PCM采样的位深度值; 以及关于每个PCM样本的比特深度的信令信息，其中关于每个PCM样本的比特深度的信息可以包含与当前块的每个PCM样本的比特深度的参考值的差值。

公开(公告)号：WO2012177052A3

公开(公告)日：2013-02-28

申请号：PCT/KR2012004882

申请日：2012-06-20

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KYUNG HEE UNIV IND COOP GROUP ,  KIM HUI YONG ,  PARK GWANG HOON ,  KIM KYUNG YONG ,  LIM SUNG CHANG ,  LEE JIN HO ,  CHOI JIN SOO ,  KIM JIN WOONG

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

IPC: H04N7/36

CPC classification number: H04N19/61 ,  H04N19/51

Abstract: An inter-prediction method according to the present invention comprises the steps of: deriving motion information of a current block; and generating a prediction block for the current block on the basis of the derived motion information. According to the present invention, computational complexity can be reduced and encoding efficiency can be improved.

Abstract translation: 根据本发明的帧间预测方法包括以下步骤：导出当前块的运动信息; 以及基于导出的运动信息生成当前块的预测块。 根据本发明，可以降低计算复杂度并且可以提高编码效率。

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。

公开(公告)号：WO2011078562A2

公开(公告)日：2011-06-30

申请号：PCT/KR2010009168

申请日：2010-12-21

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  LEE JIN HO ,  JEONG SE YOON ,  KIM HUI YONG ,  CHO SUK HEE ,  CHOI HAE CHUL ,  LEE HA HYUN ,  KIM JONG HO ,  LIM SUNG CHANG ,  CHOI JIN SOO ,  HONG JIN WOO ,  OH SEOUNG JUN ,  SIM DONG GYU ,  PARK GWANG HOON ,  LEE YEO SONG ,  KIM JI EON

Inventor： LEE JIN HO ,  JEONG SE YOON ,  KIM HUI YONG ,  CHO SUK HEE ,  CHOI HAE CHUL ,  LEE HA HYUN ,  KIM JONG HO ,  LIM SUNG CHANG ,  CHOI JIN SOO ,  HONG JIN WOO ,  OH SEOUNG JUN ,  SIM DONG GYU ,  PARK GWANG HOON ,  LEE YEO SONG ,  KIM JI EON

CPC classification number: H04N19/11 ,  H04N19/46

Abstract: Disclosed are intra-predictive coding and decoding methods, and intra-predictive coding and decoding devices for performing the methods. According to the present invention, by performing intra-prediction on a current block using neighboring blocks which have been previously coded and then transmitted, overhead related to a bit of an intra-prediction mode is decreased, and thus compression rate can be enhanced.

Abstract translation: 公开了用于执行方法的帧内预测编码和解码方法以及预测编码和解码装置。 根据本发明，通过使用已经预先编码然后发送的相邻块对当前​​块执行帧内预测，​​减少与帧内预测模式的比特相关的开销，从而可以提高压缩率。

公开(公告)号：WO2014163437A2

公开(公告)日：2014-10-09

申请号：PCT/KR2014002940

申请日：2014-04-04

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N19/59 ,  H04N19/503 ,  H04N19/51

CPC classification number: H04N19/30

Abstract: The present invention pertains to a method and/or an apparatus for encoding and/or decoding video using intra-prediction combined between layers, comprising: a reference sample generation unit for generating a reference sample by using a sample which is included in at least one block from among a sample included in a block restored around a target block of an upper layer, a sample included in a corresponding block of a lower layer which corresponds to a target block of an upper layer, a sample included in a corresponding block of a lower layer which corresponds to a block restored around a target block of an upper layer, and a sample included in any specific block of a lower layer; a prediction unit for generating a prediction value of the target block by using the reference sample; and a prediction value generating unit for generating a final prediction value of a prediction target block by the prediction value.

Abstract translation: 本发明涉及一种使用层间组合的帧内预测对视频进行编码和/或解码的方法和/或设备，包括：参考样本生成单元，用于通过使用包括在至少一个 从在上层的目标块周围恢复的块中包括的样本中选择包括在与上层的目标块对应的下层的对应块中的样本， 对应于在上层的目标块周围恢复的块的下层和包含在下层的任何特定块中的样本; 预测单元，用于通过使用参考采样来生成目标块的预测值; 以及预测值生成单元，用于通过预测值来生成预测目标块的最终预测值。