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公开(公告)号：KR1020120140366A
公开(公告)日：2012-12-31
申请号：KR1020110060061
申请日：2011-06-21
Applicant: 광운대학교 산학협력단
IPC: H04N19/129 , H04N19/186
CPC classification number: H04N19/129 , H04N19/186 , H04N19/70
Abstract: PURPOSE: A method for determining an adaptive chrominance component scanning sequence by using the context of brightness components and a device thereof are provided to improve the compressibility of chrominance components by efficiently performing entrophy encoding by considering features of chrominance components. CONSTITUTION: A brightness component context deductor(103) derives the context of brightness components to adaptively derive a scanning sequence of chrominance components by using the context. An adaptive chrominance component realignment unit based on context(105) adaptively generates the scanning sequence by using the context. [Reference numerals] (102) Brightness component rearranging unit; (103) Brightness component context deductor; (104) Chrominance component rearranging unit; (105) Adaptive chrominance component rearranging unit based on context; (106) Entropy encoding unit; (108) Filtering unit in a loop; (AA) Current frame; (BB) Conversion encoding unit; (CC) Quantization unit; (DD) Inverse quantization unit; (EE) Inverse conversion encoding unit; (FF) Predicting unit in a screen; (GG) Motion compensating unit; (HH) Motion predicting unit
Abstract translation: 目的：提供一种通过使用亮度分量的上下文及其装置来确定自适应色度分量扫描序列的方法，以通过考虑色度分量的特征来有效地执行熵编码来改善色度分量的可压缩性。 构成：亮度分量上下文推导器（103）导出亮度分量的上下文，以通过使用上下文自适应地导出色度分量的扫描序列。 基于上下文（105）的自适应色度分量重新对准单元通过使用上下文自适应地生成扫描序列。 （102）亮度分量重排单元; （103）亮度分量上下文推算器; （104）色度分量重排单元; （105）基于上下文的自适应色度分量重排单元; （106）熵编码单元; （108）循环中的过滤单元; （AA）当前帧; （BB）转换编码单元; （CC）量化单元; （DD）反量化单元; （EE）逆变换编码单元; （FF）屏幕中的预测单元; （GG）运动补偿单元; （HH）运动预测单元
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公开(公告)号：KR101636649B1
公开(公告)日：2016-07-05
申请号：KR1020150057215
申请日：2015-04-23
Applicant: 삼성전자주식회사 , 광운대학교 산학협력단
IPC: H04N19/174 , H04N19/436 , H04N19/50
Abstract: 슬라이스단위로분할된동영상을처리하는동영상부호화/복호화장치및 부호화방법/복호화방법을제공한다. 본발명의실시예에따른복호화장치는, 복호화장치에있어서, 비트스트림으로부터블록관련정보를획득하고, 상기블록관련정보를기반으로하여, 프레임을적어도두 개의행들을포함하는복수의블록들로분할하는분할부; 제1 행에서의제2 블록을복호화하여복호화정보를획득하는제어부; 및상기복호화정보를이용하여상기제1 행에서의제3 블록및 제2 행에서의제1 블록을복호화하는복호화기를포함하고, 상기복호화정보는예측정보및 움직임벡터관련정보를포함하고, 상기블록관련정보는분할정보(split information)를포함한다.
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公开(公告)号：KR1020150051976A
公开(公告)日：2015-05-13
申请号：KR1020150057215
申请日：2015-04-23
Applicant: 삼성전자주식회사 , 광운대학교 산학협력단
IPC: H04N19/174 , H04N19/436 , H04N19/50
Abstract: 슬라이스단위로분할된동영상을처리하는동영상부호화/복호화장치및 부호화방법/복호화방법을제공한다. 본발명에따른부호화방법은, 동영상이입력되면슬라이스단위로분할하고, 슬라이스단위로분할된동영상들을부호화하는순서를결정하는과정을포함하며, 부호화순서가결정되면, 해당순서에따라서슬라이스단위로분할된각 동영상들을부호화하여비트스트림을생성하는과정을포함한다.
Abstract translation: 提供了一种视频编码/解码设备和用于处理由片单元划分的视频的视频编码/解码方法。 根据本发明的编码方法包括以下步骤：如果视频是输入，则按片段单位划分视频，并确定按片段单位划分的视频的编码顺序; 并且如果确定了编码顺序，则根据相应的顺序对通过切片单位划分的每个视频进行编码来生成比特流。
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公开(公告)号：KR1020140038323A
公开(公告)日：2014-03-28
申请号：KR1020130111098
申请日：2013-09-16
Applicant: 광운대학교 산학협력단
CPC classification number: H04N19/573 , H04N19/117 , H04N19/33 , H04N19/59
Abstract: Disclosed is an apparatus and a method for inter-layer reference of a multi-layer video. The apparatus for inter-layer reference of a multi-layer video comprises: a first reference image generating unit for generating a first reference image base on reference information of reference layers; a partial image generating unit for generating a partial image by dividing the first reference image based on division information included in the reference information of the reference layers; and a second reference image generating unit for generating a second reference image by adjusting the partial information based on the partial information respectively included in the partial information. [Reference numerals] (100) First reference image generating unit; (200) Partial image generating unit; (210) First reference image load unit; (220) Division information load unit; (230) First reference image dividing unit; (300) Second reference image generating unit; (310) Partial information load unit; (320) Partial image adjusting unit; (AA) Reference information of reference layers; (BB) First reference image; (CC) Divisiong information; (DD) Partial image; (EE) Partial information; (FF) Second reference image
Abstract translation: 公开了一种用于多层视频的层间参考的装置和方法。 用于多层视频的层间参考的装置包括：第一参考图像生成单元，用于基于参考层的参考信息产生第一参考图像; 部分图像生成单元，用于通过基于包括在参考层的参考信息中的分割信息来划分第一参考图像来生成部分图像; 以及第二参考图像生成单元，用于通过基于分别包括在部分信息中的部分信息来调整部分信息来生成第二参考图像。 （附图标记）（100）第一参考图像生成单元; （200）部分图像生成单元; （210）第一参考图像加载单元; （220）分部信息负载单元; （230）第一参考图像分割单元; （300）第二参考图像生成单元; （310）部分信息负载单元; （320）部分图像调整单元; （AA）参考层的参考信息; （BB）第一参考图像; （CC）分部信息; （DD）部分图像; （EE）部分资料; （FF）第二参考图像
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公开(公告)号：KR101346349B1
公开(公告)日：2013-12-31
申请号：KR1020120011969
申请日：2012-02-06
Applicant: 광운대학교 산학협력단
IPC: H04N19/50
Abstract: 스케일러블 다시점 영상 복호화 장치는 제1 채널 및 제2 채널의 입력 영상을 포함하는 스케일러블 다시점 영상을 수신하는 수신부, 참조 영상을 저장하는 제1 버퍼, 상기 제 1채널의 입력 영상을 복호화하여 제1 차분 영상을 생성하는 제1 디코딩부, 상기 참조 영상을 참조하여 상기 제1 차분 영상에 상응하는 제1 예측 영상을 생성하는 제1 예측부, 상기 제1 채널의 입력 영상이 복합 루프 방식에 상응하는 경우 또는 상기 제1 채널의 입력 영상이 단일 루프 방식에 상응하고 상기 제1 채널의 입력 영상에 상응하는 헤더 정보가 인트라(intra) 타입을 나타내는 경우, 상기 제1 차분 영상과 상기 제2 예측 영상을 합산한 제1 복원 영상을 상기 제2 채널의 해상도에 상응하도록 보간하여 보간 영상을 생성하는 보간 영상 생성부, 상기 보간 영상을 저장하는 제2 버퍼, 상기 제2 채널의 영상을 복호화하여 제2 차분 영상을 생성하는 제2 디코딩부 및 상기 보간 영상을 참조하여 상기 제2 차분 영상에 상응하는 제2 예측 영상을 생성하는 제2 예측부를 포함한다.
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Patent Agency Ranking
公开(公告)号：KR1020130119717A
公开(公告)日：2013-11-01
申请号：KR1020120042736
申请日：2012-04-24
Applicant: 광운대학교 산학협력단
IPC: H04N19/503
CPC classification number: H04N19/513 , H04N19/159 , H04N19/597
Abstract: With respect to next generation high efficiency video encoding or next generation scalable and multi-view video encoding for super resolution video, the present invention relates to a video encoding method and device for transmitting, to a decoder, motion information that can be used as auxiliary information and providing the increase of encoding efficiency and various functions by effectively using the same. A next generation high efficiency video encoding device or a next generation scalable and multi-view video encoding device comprises auxiliary motion information in a high-level syntax. [Reference numerals] (570,574) Merge motions and use the motions?;(571) Obtain expected block information;(573) Use motion information on a time aixs?;(575) Perform multi-directional intra expectation;(576,584) Construct a candidate group by using neighboring blocks;(577) Construct a candidate group by using the neighboring blocks and the blocks corresponding to the previous screen;(578) Obtain expectation information about improved motions;(579,CC) Obtain motion merging information;(580) Add auxiliary motion information;(581) Obtain auxiliary motion information;(582) Compensate motions;(AA,DD,GG,II,KK,MM) No;(BB,FF,HH,JJ,LL,NN) Yes;(EE) Expect the intra?
Abstract translation: 对于用于超分辨率视频的下一代高效率视频编码或下一代可扩展和多视点视频编码，本发明涉及一种用于向解码器发送可用作辅助视频的运动信息的视频编码方法和装置 信息，并通过有效的使用提高编码效率和各种功能。 下一代高效率视频编码设备或下一代可扩展和多视图视频编码设备包括高级语法中的辅助运动信息。 （参考数字）（570,574）合并运动并使用运动？（571）获取预期的块信息;（573）使用运动信息aixs？;（575）执行多方向期望;（576,584）构造一个 （577）通过使用相邻块和与前一个屏幕相对应的块构建候选组;（578）获取关于改进运动的期望信息;（579，CC）获取运动合并信息;（580） 补充运动信息;（581）获取辅助运动信息;（582）补偿运动;（AA，DD，GG，II，KK，MM）否;（BB，FF，HH，JJ，LL，NN）是; （EE）期望内部？
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公开(公告)号：KR1020130070195A
公开(公告)日：2013-06-27
申请号：KR1020110137406
申请日：2011-12-19
Applicant: 광운대학교 산학협력단
IPC: H04N7/24
CPC classification number: H04N19/82
Abstract: PURPOSE: A method for context based SAO(Sample Adaptive Offset) filter direction estimation and adaptive selection in a video and a device thereof are provided to adaptively select a filter direction by considering a detailed edge direction corresponding to a feature of a current decoding object image, thereby improving subjective and objective image quality. CONSTITUTION: A context based filter selection parameter extraction unit(503) brings parameter information for a restored image and finds an edge direction. A filter direction determination unit(504) determines an SAO filter direction in a group for a current block or an area corresponding to kinds and a value of context which is parsed from an entropy decoding unit(501) and image feature information extracted in the context based filter selection parameter extraction unit. An SAO execution unit(505) comprises a pixel set by using the determined filter direction and performs SAO filtering for the pixel set. [Reference numerals] (501) Entropy decoding unit; (502) Pixel restoration unit; (503) Context based filter selection parameter extraction unit; (504) Filter direction determination unit; (505) SAO execution unit; (506) Image output unit
Abstract translation: 目的：提供一种用于视频及其设备中的基于上下文的SAO（样本自适应偏移）滤波器方向估计和自适应选择的方法，以通过考虑与当前解码对象图像的特征相对应的详细边缘方向来自适应地选择滤波器方向 从而提高主观和客观的画质。 构成：基于上下文的滤波器选择参数提取单元（503）为恢复的图像提供参数信息并找到边缘方向。 滤波器方向确定单元（504）确定用于当前块的组中的SAO滤波器方向或对应于从熵解码单元（501）解析的上下文的种类和值的区域以及在上下文中提取的图像特征信息 基于滤波器的选择参数提取单元。 SAO执行单元（505）包括通过使用所确定的滤波器方向的像素集合，并针对像素集执行SAO滤波。 （附图标记）（501）熵解码单元; （502）像素恢复单元; （503）基于上下文的滤波器选择参数提取单元; （504）滤波器方向确定单元; （505）SAO执行单位; （506）图像输出单元
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公开(公告)号：KR1020100023320A
公开(公告)日：2010-03-04
申请号：KR1020080082014
申请日：2008-08-21
Applicant: 삼성전자주식회사 , 광운대학교 산학협력단
IPC: H04N19/186 , H04N19/51
CPC classification number: H04N19/80 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/186 , H04N19/61 , H04N19/124 , H04N19/13 , H04N19/50 , H04N19/60
Abstract: PURPOSE: A device for encoding and decoding of an image and a method thereof are provided to express input pixels with the minimum number of conversion coefficients compared with the number of input pixels using an image based on a video sensor structure as an input, thereby improving the complexity of software and hardware. CONSTITUTION: A device for encoding and decoding of an image includes an image obtaining unit(100), a conversion encoding unit(140), a decoding unit, and an image display unit. The image obtaining unit is used to obtain images to be encoded. The conversion encoding unit expresses input pixels only with a half of coefficients among conversion coefficients obtained according to the mutual relation between obtained conversion coefficients. The decoding unit generates a recovery image using a differential image and a compensating image and interpolates the recovery image. The image display unit displays the image interpolated in the decoding unit.
Abstract translation: 目的：提供一种用于图像编码和解码的装置及其方法，以基于视频传感器结构作为输入的图像来表达具有最小转换系数数量的输入像素与输入像素的数量相比较，从而改进 软件和硬件的复杂性。 构成：用于图像编码和解码的装置包括图像获取单元（100），转换编码单元（140），解码单元和图像显示单元。 图像获取单元用于获得要编码的图像。 转换编码单元仅根据获得的转换系数之间的相互关系获得的转换系数中的一半系数表示输入像素。 解码单元使用差分图像和补偿图像生成恢复图像并内插恢复图像。 图像显示单元显示在解码单元中插值的图像。
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公开(公告)号：KR1020080027190A
公开(公告)日：2008-03-26
申请号：KR1020070096161
申请日：2007-09-20
Applicant: 광운대학교 산학협력단
IPC: H04N19/597 , H04N13/00
CPC classification number: H04N19/597 , H04N19/53 , H04N19/59 , H04N19/61 , H04N19/80
Abstract: A method and an apparatus for compressing a multiple resolution stereo and multi-view video are provided to be compatible with an existing video encoding/decoding apparatus for displaying a single visual point image, thereby supporting the display of the stereo and multi-view video efficiently. An apparatus for encoding and decoding a video comprises a basic visual point image(201). An extended visual point image(202), a video encoder for an existing visual point(210), a video decoder for the existing visual point(220), a filter a down sampler for reducing the space resolution of an image signal(212), an encoder for encoding the extended visual point image(230), a decoder for decoding the extended visual point image(240), and a restored image storage unit for reference in estimation and compensation between motion and time. The extended visual point image of which the resolution is reduced is encoded by filtering a left visual point image previously encoded, sampling the left visual point image in the same resolution, and using a reference image stored in the restored image storage unit.
Abstract translation: 提供一种用于压缩多分辨率立体声和多视点视频的方法和装置，以与用于显示单个视点图像的现有视频编码/解码装置兼容，从而有效地支持立体声和多视点视频的显示 。 用于对视频进行编码和解码的装置包括基本视点图像（201）。 扩展视点图像（202），用于现有可视点（210）的视频编码器，用于现有视点（220）的视频解码器，用于减小图像信号（212）的空间分辨率的下采样器的滤波器， ，用于对扩展视点图像（230）进行编码的编码器，用于对扩展视点图像（240）进行解码的解码器，以及用于在运动和时间之间的估计和补偿中参考的恢复图像存储单元。 分辨率降低的扩展视点图像通过对先前编码的左视点图像进行滤波，以相同分辨率对左视点图像进行采样，并使用存储在恢复图像存储单元中的参考图像进行编码。
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公开(公告)号：KR101590633B1
公开(公告)日：2016-02-02
申请号：KR1020080111850
申请日：2008-11-11
Applicant: 삼성전자주식회사 , 광운대학교 산학협력단
IPC: H04N19/174 , H04N19/436
CPC classification number: H04N19/513 , H04N19/102 , H04N19/156 , H04N19/174 , H04N19/436 , H04N19/61
Abstract: 슬라이스단위로분할된동영상을처리하는동영상부호화/복호화장치및 부호화방법/복호화방법을제공한다. 본발명에따른부호화방법은, 동영상이입력되면슬라이스단위로분할하고, 슬라이스단위로분할된동영상들을부호화하는순서를결정하는과정을포함하며, 부호화순서가결정되면, 해당순서에따라서슬라이스단위로분할된각 동영상들을부호화하여비트스트림을생성하는과정을포함한다.
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