公开(公告)号：KR1020120033289A

公开(公告)日：2012-04-06

申请号：KR1020110099197

申请日：2011-09-29

Applicant: 한국전자통신연구원 ,  한밭대학교 산학협력단

Inventor： 임성창 ,  김휘용 ,  정세윤 ,  조숙희 ,  김종호 ,  이하현 ,  이진호 ,  최진수 ,  김진웅 ,  안치득 ,  최해철

IPC: H04N19/30 ,  H04N19/117

CPC classification number: H04N19/597 ,  H04N19/117 ,  H04N19/30 ,  H04N19/34 ,  H04N19/36 ,  H04N19/463 ,  H04N19/635 ,  H04N19/80 ,  H04N19/82 ,  H04N19/187 ,  H04N19/50 ,  H04N19/70

Abstract: PURPOSE: An image encoding/decoding method using filter information prediction and a device thereof are provided to reduce the quantity of transmission data. CONSTITUTION: An encoder and a decoder predict the filter information used for a target restoration image from a predetermined layer(S510). The encoder and the decoder filter the target restoration image by using the predicted filter information(S520). The filter information includes calculated filter information and/or predetermined filter information.

Abstract translation: 目的：提供一种使用滤波器信息预测的图像编码/解码方法及其装置，以减少发送数据量。 构成：编码器和解码器从预定层预测用于目标恢复图像的滤波器信息（S510）。 编码器和解码器通过使用预测的滤波器信息来过滤目标恢复图像（S520）。 滤波器信息包括计算的滤波器信息和/或预定滤波器信息。

公开(公告)号：KR1020110095119A

公开(公告)日：2011-08-24

申请号：KR1020100124368

申请日：2010-12-07

Applicant: 한국전자통신연구원 ,  경희대학교 산학협력단

Inventor： 임성창 ,  최해철 ,  정세윤 ,  조숙희 ,  김휘용 ,  이진호 ,  이하현 ,  김종호 ,  최진수 ,  김진웅 ,  박광훈 ,  김경용 ,  심동규 ,  오승준

IPC: H04N19/13 ,  H04N19/119 ,  H04N19/11 ,  H04N19/139 ,  H04N19/105 ,  H04N19/124

CPC classification number: H04N19/169 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/593 ,  H04N19/105 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/137 ,  H04N19/139 ,  H04N19/189 ,  H04N19/19

Abstract: PURPOSE: An apparatus and method for encoding and decoding an ultra high definition resolution image are provided to reduce the calculation complexity by outputting a bitstream using an estimation block of a current block. CONSTITUTION: A prediction unit(810) creates the estimation block of a current block based on a reference image. A subtracting unit creates the difference block through a difference between the estimation block and the current block. An encoding information generating unit(850) creates the encoding information which shows the encoding state of the differential block.

Abstract translation: 目的：提供一种用于对超高分辨率分辨率图像进行编码和解码的装置和方法，以通过使用当前块的估计块输出比特流来降低计算复杂度。 构成：预测单元（810）基于参考图像创建当前块的估计块。 减法单元通过估计块和当前块之间的差产生差分块。 编码信息生成单元（850）创建表示差分块的编码状态的编码信息。

公开(公告)号：KR1020110073263A

公开(公告)日：2011-06-29

申请号：KR1020100124451

申请日：2010-12-07

Applicant: 한국전자통신연구원 ,  광운대학교 산학협력단

Inventor： 이진호 ,  정세윤 ,  김휘용 ,  조숙희 ,  최해철 ,  이하현 ,  김종호 ,  임성창 ,  최진수 ,  홍진우 ,  오승준 ,  심동규 ,  박광훈 ,  이여송 ,  김지언

IPC: H04N19/11 ,  H04N19/105

CPC classification number: H04N19/11 ,  H04N19/105 ,  H04N19/176

Abstract: PURPOSE: An intra prediction encoding and decoding method and an intra prediction encoding and decoding apparatus implementing the method are provided to reduce overhead related to mode bit with the selection of a prediction mode through peripheral blocks. CONSTITUTION: A first intra prediction unit(111) respectively calculates the degree of pixel correlation by intra prediction direction between a macroblock and the peripheral blocks of the macroblock. A second intra prediction unit(113) performs the intra prediction of the macroblock with the mode information of the peripheral block in the upper part of the macro block. A third intra prediction unit(115) performs the intra prediction of the brightness component of a current picture. A mode selection unit(117) selects an optimal intra prediction mode.

Abstract translation: 目的：提供实现该方法的帧内预测编码和解码方法以及帧内预测编码和解码装置，通过周边块选择预测模式来减少与模式比特相关的开销。 构成：第一帧内预测单元（111）分别通过宏块与宏块的外围块之间的帧内预测方向分别计算像素相关度。 第二帧内预测单元（113）利用宏块的上部的周边块的模式信息来执行宏块的帧内预测。 第三帧内预测单元（115）对当前图像的亮度分量进行帧内预测。 模式选择单元（117）选择最佳帧内预测模式。

公开(公告)号：KR1020110073154A

公开(公告)日：2011-06-29

申请号：KR1020100014618

申请日：2010-02-18

Applicant: 한국전자통신연구원

Inventor： 최해철 ,  정세윤 ,  조숙희 ,  김휘용 ,  이진호 ,  이하현 ,  임성창 ,  김종호 ,  최진수 ,  홍진우 ,  박광훈 ,  김경용 ,  김기섭 ,  심동규 ,  오승준

IPC: H04N19/51 ,  H04N19/86 ,  H04N19/176

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/86

Abstract: PURPOSE: An image encoding/decoding apparatus and method are provided to eliminate the use of a memory area necessary to deblocking filtering. CONSTITUTION: If bit stream for the compression of video data is outputted on the basis of the block video information of the video data and the differential signal of the video information, a reverse processing unit(107~109) performs the reverse transformation and reverse quantization of the video information and the addition of the differential signal. A deblocking filler(110) performs the deblocking of the added video information. A reference video buffer(111) stores the video information deblocked by the deblocking filler. One or more prediction units(101,112) performs the video prediction of the video information using the deblocked video information stored in the reference video buffer.

Abstract translation: 目的：提供一种图像编码/解码装置和方法，以消除对去块滤波所需的存储区域的使用。 构成：如果根据视频数据的块视频信息和视频信息的差分信号输出用于压缩视频数据的比特流，则反向处理单元（107〜109）进行逆变换和反向量化 的视频信息和差分信号的添加。 去块填充物（110）执行所添加的视频信息的去块。 参考视频缓冲器（111）存储由去块填充物解封的视频信息。 一个或多个预测单元（101,112）使用存储在参考视频缓冲器中的去块视频信息来执行视频信息的视频预测。

公开(公告)号：KR1020110070687A

公开(公告)日：2011-06-24

申请号：KR1020100033283

申请日：2010-04-12

Applicant: 한국전자통신연구원

Inventor： 정세윤 ,  오승준 ,  이진호 ,  최해철 ,  조숙희 ,  김휘용 ,  임성창 ,  이하현 ,  김종호 ,  최진수 ,  홍진우 ,  심동규 ,  박광훈 ,  조재규 ,  이여송

IPC: H04N19/137 ,  H04N19/60

CPC classification number: H04N19/30 ,  H04N19/13 ,  H04N19/172 ,  H04N19/176

Abstract: PURPOSE: An encoding apparatus and method capable of multi-dimensional conversion and quantization and a decoding apparatus and method are provided to apply integer-type quantization to a difference image which is converted twice. CONSTITUTION: A first differentiator(140) removes a prediction block created by inter prediction and creates a difference image. A converting unit(151) performs the multi-dimensional conversion of the difference image. A quantization unit(153) applies integer-type quantization to the multi-dimensionally converted difference image. An entropy coding unit(157) encodes and compresses the coefficient values of the re-aligned difference image.

Abstract translation: 目的：提供能够进行多维转换和量化的编码装置和方法以及解码装置和方法，以将整数类型量化应用于被转换两次的差分图像。 构成：第一微分器（140）去除由帧间预测产生的预测块并创建差分图像。 A转换单元（151）执行差分图像的多维转换。 量化单元（153）对多维转换的差分图像应用整数类型量化。 熵编码单元（157）对重新对准的差分图像的系数值进行编码和压缩。

公开(公告)号：KR1020110068900A

公开(公告)日：2011-06-22

申请号：KR1020100127547

申请日：2010-12-14

Applicant: 한국전자통신연구원

Inventor： 임성창 ,  최해철 ,  이하현 ,  이진호 ,  김휘용 ,  정세윤 ,  조숙희 ,  김종호 ,  최진수 ,  홍진우 ,  김진웅

IPC: H04N19/117 ,  H04N19/126 ,  H04N19/154 ,  H04N19/129 ,  H04N19/13

CPC classification number: H04N19/117 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/154 ,  H04N19/86

Abstract: PURPOSE: An image encoding/decoding apparatus and method thereof are provided to increase image compression ratio and to adaptively perform de-blocking filtering of an input image. CONSTITUTION: A quantization unit(140) performs quantization about each of a plurality of blocks. A quantization determining unit(175) determines the kind of de-blocking target blocks. A de-blocking determination unit(180) determines a de-blocking filter. A de-blocking unit performs de-blocking filtering about a de-blocking object block by using the de-blocking filter.

Abstract translation: 目的：提供一种图像编码/解码装置及其方法，以增加图像压缩率并自适应地执行输入图像的去块滤波。 构成：量化单元（140）对于多个块中的每一个执行量化。 量化确定单元（175）确定解块目标块的种类。 解块确定单元（180）确定解块滤波器。 解块单元通过使用去块滤波器来执行解块对象块的去块滤波。

公开(公告)号：KR1020110015356A

公开(公告)日：2011-02-15

申请号：KR1020090128064

申请日：2009-12-21

Applicant: 한국전자통신연구원 ,  광운대학교 산학협력단 ,  경희대학교 산학협력단 ,  한국과학기술원

Inventor： 임성창 ,  이하현 ,  정세윤 ,  조숙희 ,  최해철 ,  김휘용 ,  김종호 ,  이진호 ,  최진수 ,  홍진우 ,  심동규 ,  오승준 ,  박광훈 ,  김문철 ,  황능주 ,  박시내

IPC: H04N19/60 ,  H04N19/176

CPC classification number: H04N19/122 ,  H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/60 ,  H04N19/615 ,  H04N19/625 ,  H04N19/91

Abstract: PURPOSE: A video encoding/decoding device using an adaptive conversion encoding/decoding region based on characteristic of a differential signal and a method thereof are provided not to include a boundary region signal inside a converting and encoding block, thereby increasing energy compaction of a signal after converting and encoding. CONSTITUTION: A signal divider(131) divides a differential signal of an image block into a non boundary area signal and a boundary area signal. A converting and encoding unit(133) performs a DCT(Discrete Cosine Transform) of the non boundary area signal. A quantization unit(135) quantizes the DCT-converted non-boundary area signal in a frequency domain. A spatial area quantization unit(137) quantizes the boundary area signal in a space area.

Abstract translation: 目的：提供一种使用基于差分信号的特性的自适应转换编码/解码区域的视频编码/解码装置及其方法，其不包括转换和编码块内的边界区域信号，从而增加信号的能量压缩 转换和编码后。 构成：信号分配器（131）将图像块的差分信号划分为非边界区域信号和边界区域信号。 转换和编码单元（133）执行非边界区域信号的DCT（离散余弦变换）。 量化单元（135）对频域中的DCT转换的非边界区域信号进行量化。 空间区域量化单元（137）对空间区域中的边界区域信号进行量化。

公开(公告)号：KR1020100136907A

公开(公告)日：2010-12-29

申请号：KR1020100033226

申请日：2010-04-12

Applicant: 한국전자통신연구원

Inventor： 정세윤 ,  최해철 ,  임성창 ,  김종호 ,  이하현 ,  조숙희 ,  최진수 ,  홍진우

IPC: H04N7/24

CPC classification number: H04N19/119 ,  H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/61

Abstract: PURPOSE: A method and an apparatus for adaptive in-loop filtering to compensate an encoding mode for video encoding and decoding in consideration of an encoding mode of a region are provided to improve an encoding performance in consideration of an encoding mode for a region to which a filter is applied and minimize the overhead resulting from the consideration of the encoding mode. CONSTITUTION: A pixel of a restoration image from which block distortion is removed is compared with a set encoding mode(510). If the pixel corresponds to the encoding mode, a filter coefficient corresponding to the pixel is calculated(520). Based on the filter coefficient, an adaptive in-loop filtered recovery image is generated by performing a filtering operation for the restored image from which the block distortion is removed(530).

Abstract translation: 目的：提供一种考虑到区域的编码模式来补偿视频编码和解码的编码模式的自适应环路滤波的方法和装置，以便考虑到对于区域的编码模式来提高编码性能 应用滤波器并且最小化考虑编码模式导致的开销。 构成：将去除块失真的恢复图像的像素与设置的编码模式进行比较（510）。 如果像素对应于编码模式，则计算与像素对应的滤波器系数（520）。 基于滤波器系数，通过对从其中去除块失真的恢复图像执行滤波操作来生成自适应环路滤波的恢复图像（530）。

公开(公告)号：KR1020100111836A

公开(公告)日：2010-10-18

申请号：KR1020090030239

申请日：2009-04-08

Applicant: 한국전자통신연구원

Inventor： 임성창 ,  이하현 ,  최해철 ,  정세윤 ,  김종호 ,  조숙희 ,  최진수 ,  홍진우

IPC: H04N19/147 ,  H04N19/11 ,  H04N19/51

CPC classification number: H04N19/103 ,  H04N19/13 ,  H04N19/176 ,  H04N19/567

Abstract: PURPOSE: A decoding/encoding method using a prediction offset and an apparatus thereof for improving the efficiency of a screen encode are provided to improve the compression rate of the image through bit rate reduction. CONSTITUTION: A rate distortion optimization unit(100) receives a message video data, the prediction mode and an offset. An intra estimator(110) uses the encoded ambience information of the current block and the predicted block is created to the prediction mode. An offset correction unit(140) generates the prediction block.

Abstract translation: 目的：提供使用预测偏移的解码/编码方法及其提高屏幕编码效率的装置，以通过比特率降低来提高图像的压缩率。 构成：速率失真优化单元（100）接收消息视频数据，预测模式和偏移量。 内部估计器（110）使用当前块的经编码的环境信息，并且将预测块创建为预测模式。 偏移校正单元（140）生成预测块。

公开(公告)号：KR100927733B1

公开(公告)日：2009-11-18

申请号：KR1020070036089

申请日：2007-04-12

Applicant: 한국전자통신연구원 ,  광운대학교 산학협력단 ,  세종대학교산학협력단

Inventor： 김대연 ,  임성창 ,  서정일 ,  백승권 ,  장인선 ,  장대영 ,  김재곤 ,  문경애 ,  홍진우 ,  김진웅 ,  오승준 ,  안창범 ,  정세윤 ,  최해철 ,  이영렬 ,  심동규

IPC: H04N19/12 ,  H04N19/625

CPC classification number: H04N19/103 ,  H04N19/122 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

Abstract: Provided is an apparatus and method for encoding and decoding using alternative transform units according to the correlation of residual signals. The video encoding apparatus includes a first transforming unit for performing discrete cosine transform (DCT), first quantization, first inverse quantization, and inverse DCT on a block basis onto residual coefficients generated after intra frame prediction or inter frame prediction; a second transforming unit for performing discrete sine transform (DST), second quantization, second inverse quantization, and inverse DST on a block basis onto the residual coefficients; a selecting unit for selecting one having a high compression rate between the first and second transforming units for each block through performing rate-distortion optimization; and a flag marking unit for recording information about the selected transforming unit at a flag bit provided on a macroblock basis.

Abstract translation: 提供了一种根据残差信号的相关性使用替代变换单元进行编码和解码的设备和方法。 该视频编码设备包括：第一变换单元，用于基于块执行离散余弦变换（DCT），第一量化，第一逆量化和逆DCT到在帧内预测或帧间预测之后生成的残差系数; 第二变换单元，用于以块为单位对残差系数执行离散正弦变换（DST），第二量化，第二逆量化和逆DST; 选择单元，用于通过执行速率失真优化来针对每个块在第一变换单元和第二变换单元之间选择具有高压缩率的压缩率; 以及标记标记单元，用于在以宏块为基础提供的标记位处记录关于所选择的变换单元的信息。