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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：KR1020130066715A
公开(公告)日：2013-06-21
申请号：KR1020110132585
申请日：2011-12-12
Applicant: 한국전자통신연구원
CPC classification number: H04N19/597 , H04N2213/005
Abstract: PURPOSE: A method for encoding/decoding a depth image and an apparatus thereof are provided to enable a decoder to correct errors generated during a depth image coding/decoding process using characteristic information of a depth image. CONSTITUTION: A depth image decoder receives characteristic information of a depth image (S910). The depth image decoder decodes the received characteristic information of the depth image (S920). When the decoding of the received characteristic information is completed, the depth image decoder decodes the depth image using the decoded characteristic information (S930). [Reference numerals] (S910) Receive characteristic information of a depth image; (S920) Decode the received characteristic information of the depth image; (S930) Decode the depth image using the decoded characteristic information
Abstract translation: 目的：提供一种用于对深度图像进行编码/解码的方法及其装置，以使解码器能够使用深度图像的特征信息来校正在深度图像编码/解码处理期间产生的错误。 构成：深度图像解码器接收深度图像的特征信息（S910）。 深度图像解码器对接收到的深度图像的特征信息进行解码（S920）。 当接收到的特征信息的解码完成时，深度图像解码器使用解码的特征信息解码深度图像（S930）。 （参考号）（S910）接收深度图像的特征信息; （S920）对接收到的深度图像的特征信息进行解码; （S930）使用解码的特征信息对深度图像进行解码
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公开(公告)号：KR101216329B1
公开(公告)日：2012-12-27
申请号：KR1020090125386
申请日：2009-12-16
Applicant: 한국전자통신연구원
IPC: H04N17/00
CPC classification number: H04N17/004
Abstract: 기본계층과향상계층의영상품질을각기다른방법으로측정하고, 측정결과를기초로복수계층영상의품질을측정하는방법이개시된다. 복수계층영상의품질측정시스템은입력받은복수계층영상을기본계층비트스트림(Base Layer Bitstream)과향상계층비트스트림(Enhanced Layer Bitstream)으로분리하는비트스트림추출부; 상기기본계층비트스트림의영상품질을평가하여기본계층영상의화질측정결과정보를생성하는기본계층품질측정부; 상기향상계층비트스트림의영상품질을평가하여향상계층영상의화질측정결과정보를생성하는향상계층품질측정부; 및상기기본계층영상의화질측정결과정보와상기향상계층영상의화질측정결과정보를기초로상기복수계층영상의체감품질을평가하는종합품질평가부를포함한다.
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公开(公告)号：KR1020120138712A
公开(公告)日：2012-12-26
申请号：KR1020120064634
申请日：2012-06-15
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: H04N19/30 , H04N19/105
CPC classification number: H04N19/503 , H04N19/103 , H04N19/11 , H04N19/176 , H04N19/187 , H04N19/30 , H04N19/33 , H04N19/36 , H04N19/59
Abstract: PURPOSE: A scalable video coding and decoding method and a device using the same are provided to supply various video services on a time, a space, or an image quality side according to a use purpose or various demands. CONSTITUTION: An encoding device and a decoding device determine whether inter layer prediction is applied to an enhanced layer(S1610). If the inter layer prediction is applied, the encoding device and the decoding device perform the prediction of a current layer of the enhanced layer based on reference information generated from a decoded reference picture of a reference layer(S1630). The encoding device and the decoding device restore or encode the current picture of the enhanced layer(S1640). [Reference numerals] (AA) Start; (BB) No; (CC) Yes; (DD) End; (S1610) Predicting an inter layer?; (S1620) Predicting in an enhanced layer; (S1630) Predicting based on a generalized reference picture or a generalized reference block generated from information of a reference layer; (S1640) Restoring a picture of the enhanced layer
Abstract translation: 目的：提供可扩展的视频编码和解码方法以及使用其的设备，以便根据用途或各种需求在时间，空间或图像质量方面提供各种视频服务。 构成：编码装置和解码装置确定层间预测是否应用于增强层（S1610）。 如果应用层间预测，则编码装置和解码装置基于从参考层的解码参考图像生成的参考信息来执行增强层的当前层的预测（S1630）。 编码装置和解码装置恢复或编码增强层的当前图像（S1640）。 （附图标记）（AA）开始; （BB）否 （CC）是; （DD）结束; （S1610）预测层间？ （S1620）在增强层中预测; （S1630）基于从参考层的信息生成的广义参考图像或广义参考块进行预测; （S1640）恢复增强层的图片
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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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