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公开(公告)号：KR101642371B1
公开(公告)日：2016-07-27
申请号：KR1020160012983
申请日：2016-02-02
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
IPC: H04N19/82 , H04N19/117 , H04N19/80
CPC classification number: H04N19/00
Abstract: 본발명은인트라매크로블록이포함된매크로블록경계에서영상블록단위양자화파라미터를이용하여적응적디블록킹필터를수행하는방법및 그장치에관한것이다. 본발명에따른필터및 필터링방법은높은해상도및 고화질비디오영상압축분야에서압축률을향상시키는효과가있다.
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公开(公告)号：KR101593126B1
公开(公告)日：2016-02-15
申请号：KR1020150126314
申请日：2015-09-07
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
CPC classification number: H04N19/00
Abstract: 본발명은인트라매크로블록이포함된매크로블록경계에서영상블록단위양자화파라미터를이용하여적응적디블록킹필터를수행하는방법및 그장치에관한것이다. 본발명에따른필터및 필터링방법은높은해상도및 고화질비디오영상압축분야에서압축률을향상시키는효과가있다.
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公开(公告)号：KR1020140064748A
公开(公告)日：2014-05-28
申请号：KR1020140052626
申请日：2014-04-30
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/91 , H04N19/11 , H04N19/124 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/44 , H04N19/463 , H04N19/50 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/96
Abstract: The present invention relates to an image encoding and decoding technology and, more specifically, to an image encoding and decoding technology using unidirectional prediction. According to the present invention, provided is an image encoding method comprising the steps of determining a prediction mode for a macroblock; dividing the macroblock into a plurality of sub-blocks; and encoding the respective sub-blocks according to the prediction mode.
Abstract translation: 图像编码和解码技术本发明涉及图像编码和解码技术，并且更具体地涉及使用单向预测的图像编码和解码技术。 根据本发明，提供了一种图像编码方法，包括以下步骤：确定宏块的预测模式; 将宏块分成多个子块; 并根据预测模式对各个子块进行编码。
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公开(公告)号：KR101356448B1
公开(公告)日：2014-02-06
申请号：KR1020090093128
申请日：2009-09-30
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
IPC: H04N19/11
CPC classification number: H04N19/91 , H04N19/11 , H04N19/124 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/44 , H04N19/463 , H04N19/50 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/96
Abstract: 본 발명은 영상 부호화 및 복호화 기술에 관한 것으로, 더욱 상세하게는 단방향 예측을 이용하여 영상을 부호화하거나 복호화하는 기술에 관한 것이다.
본 발명은 매크로 블록에 대한 예측 모드를 결정하는 단계, 상기 매크로 블록을 복수의 서브 블록으로 분할하는 단계, 상기 예측 모드에 따라서 상기 각 서브 블록을 부호화하는 단계를 포함하는 것을 특징으로 하는 영상 부호화 방법을 제공한다.
영상 부호화, 영상 복호화, 인코더, 디코더, 단방향 예측, 예측 모드-
公开(公告)号：KR1020130090858A
公开(公告)日：2013-08-14
申请号：KR1020130075086
申请日：2013-06-28
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/593 , H04N19/11 , H04N19/119 , H04N19/176
Abstract: PURPOSE: An image encoding method using a prediction mode and a computer-readable medium thereof are provided to encode each sub block by referring to a pixel of an adjacent block by encoding a sub block including a reference pixel earlier than a corresponding sub block. CONSTITUTION: When an encoder applies a diagonal down-left direction to a prediction mode, the encoder determines pixels in E,F,G,H as reference pixels to encode a sub block. The encoder determines a pixel of the sub block as a reference pixel to encode a sub block on the left bottom. When the diagonal down-left direction is determined as a prediction direction, the encoder determines an encoding sequence in order of an upper right end (430), an upper left end (440), a lower right end (450), and a lower left end (460).
Abstract translation: 目的：提供一种使用预测模式的图像编码方法及其计算机可读介质，以通过对包括相对应子块之前的参考像素的子块进行编码来参照相邻块的像素来对每个子块进行编码。 构成：当编码器将对角线左下方向施加到预测模式时，编码器将E，F，G，H中的像素确定为参考像素，以对子块进行编码。 编码器将子块的像素确定为参考像素，以对左下方的子块进行编码。 当对角线左下方向被确定为预测方向时，编码器按照右上端（430），左上端（440），右下端（450）和下端 左端（460）。
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Patent Agency Ranking
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
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。
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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
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。
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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
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。
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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
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。
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110.发明公开
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。
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