公开(公告)号：WO2014003423A1

公开(公告)日：2014-01-03

申请号：PCT/KR2013005616

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: H04N7/26

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: 公开了一种用于编码/解码图像的方法和设备。 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; 以及将扫描类型应用于当前块的残差信号，其中变换跳过块是不应用当前块变换的块，并且基于指示当前块的变换是否是 要施加。

公开(公告)号：WO2013039363A3

公开(公告)日：2013-05-10

申请号：PCT/KR2012007419

申请日：2012-09-17

Applicant: KOREA ELECTRONICS TELECOMM

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: H04N7/26

CPC classification number: H04N19/96

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving a bit stream; deriving decoding information by entropy-decoding the bit stream; and generating a restoration block corresponding to a decoding target block based on the decoding information. According to the present invention, the image encoding/decoding efficiency is improved and complexity can be reduced.

Abstract translation: 根据本发明的用于解码图像的方法包括以下步骤：接收比特流; 通过熵解码比特流来导出解码信息; 以及基于所述解码信息生成与解码目标块相对应的恢复块。 根据本发明，提高了图像编码/解码效率，降低了复杂度。

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：WO2011016701A3

公开(公告)日：2011-06-03

申请号：PCT/KR2010005186

申请日：2010-08-06

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  UNIV KYUNG HEE UNIV IND COOP GROUP ,  KOREA ADVANCED INST SCI & TECH ,  LIM SUNG-CHANG ,  LEE HAHYUN ,  KIM HUI YONG ,  JEONG SE YOON ,  CHO SUKHEE ,  CHOI HAE-CHUL ,  KIM JONGHO ,  LEE JINHO ,  CHOI JIN SOO ,  HONG JIN WOO ,  SIM DONG-GYU ,  OH SEOUNG-JUN ,  PARK GWANG HOON ,  KIM MUN CHURL ,  HWANG NEUNG-JOO ,  PARK SEA-NAE

Inventor： LIM SUNG-CHANG ,  LEE HAHYUN ,  KIM HUI YONG ,  JEONG SE YOON ,  CHO SUKHEE ,  CHOI HAE-CHUL ,  KIM JONGHO ,  LEE JINHO ,  CHOI JIN SOO ,  HONG JIN WOO ,  SIM DONG-GYU ,  OH SEOUNG-JUN ,  PARK GWANG HOON ,  KIM MUN CHURL ,  HWANG NEUNG-JOO ,  PARK SEA-NAE

IPC: H04N7/26

CPC classification number: H04N19/12 ,  H04N19/61

Abstract: Provided is a motion picture encoding apparatus comprising: a signal divider for dividing a differential image block into a first domain and a second domain on the basis of a boundary within the differential image block for representing a difference between an original image and a predictive image with respect to the original image; a transform coding unit for transform-coding the first domain using a DCT (Discrete Cosine Transform); a quantization unit for quantizing an output of the transform coding unit in a frequency domain; a spatial domain quantization unit for quantizing the second domain in a spatial domain; and an entropy encoding unit for performing an entropy encoding using outputs of the quantization unit and the spatial domain quantization unit.

Abstract translation: 提供了一种运动图像编码装置，包括：信号分割器，用于根据差分图像块内的边界将差分图像块分割成第一域和第二域，用于表示原始图像与预测图像之间的差异， 尊重原始形象; 变换编码单元，用于使用DCT（离散余弦变换）对第一域进行变换编码; 用于量化频域中的变换编码单元的输出的量化单元; 用于量化空间域中的第二域的空间域量化单元; 以及熵编码单元，用于使用所述量化单元和所述空间域量化单元的输出来执行熵编码。

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。