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公开(公告)号：KR1020150084408A
公开(公告)日：2015-07-22
申请号：KR1020140004387
申请日：2014-01-14
Applicant: 한국항공대학교산학협력단
IPC: H04N19/593
CPC classification number: H04N19/593 , H04N19/80
Abstract: DC 화면내예측부호화시 참조화소값을평활하여새롭게생성하고, 주변블록간의공간적상관성을고려한예측화소값을이용하여 DC인트라예측부호화를함으로써압축효율을높이도록한 DC 화면내예측부호화장치및 그방법에관한것으로서, 부호화대상인현재매크로블록에인접한주변매크로블록의존재여부로공간적상관성정보를탐색하는공간적정보판단부; 상기공간적정보판단부에서탐색한공간적상관성정보에따라참조화소값을생성하는참조화소생성부; 상기공간적정보판단부에서탐색한공간적상관성정보에따라인트라예측부호화를결정하는인트라예측결정부; 상기인트라예측결정부의화면내예측부호화결정에따라상기참조화소생성부에서생성된참조화소로현재매크로블록을 DC 인트라예측부호화하는 DC 인트라예측부로영상부호화기를구현한다.
Abstract translation: 本发明涉及一种用于DC帧内预测的视频编码方法，其可平滑和新创建用于DC帧内预测编码的参考像素值，并且考虑到相邻空间的空间相关性来编码DC帧内预测，并使用预测像素值 可以提高压缩效率，并且用于DC帧内预测的视频编码装置由以下部分组成：空间数据确定单元，其基于经过编码的当前宏块附近的相邻宏块的存在来搜索空间相关性数据; 参考像素生成单元，其基于由空间数据确定单元搜索的空间相关性信息来创建参考像素值; 帧内预测确定单元，其基于由空间数据确定单元搜索到的空间相关性数据来确定帧内预测编码; 以及DC帧内预测单元，其根据帧内预测确定单元的屏幕上的预测编码确定，通过使用由参考像素生成单元生成的参考像素对当前DC帧内预测进行编码。
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公开(公告)号：KR1020140131487A
公开(公告)日：2014-11-13
申请号：KR1020140125870
申请日：2014-09-22
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/2381 , H04N21/235
CPC classification number: H04N21/2381 , H04N21/235 , H04N21/23805 , H04N21/2401 , H04N21/2662 , H04N21/6543
Abstract: Disclosed are a method and an apparatus for an adaptive HTTP streaming service using metadata of content. The metadata includes a minimum buffer time attribute indicating a minimum amount of initially buffered media content. A terminal receives content from a server before playing the content, and buffers the content by at least the minimum amount. The metadata includes a range attribute designating a range of a target indicated by a URL. The terminal receives bytes designated by the range attribute from the URL, and plays the content using the received bytes.
Abstract translation: 公开了使用内容的元数据的适应性HTTP流服务的方法和装置。 元数据包括指示最初缓冲的媒体内容的最小量的最小缓冲时间属性。 终端在播放内容之前从服务器接收内容，并且将内容缓冲至少最小量。 元数据包括指定由URL指示的目标的范围的范围属性。 终端从URL接收由range属性指定的字节，并使用接收的字节播放内容。
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公开(公告)号：KR101419011B1
公开(公告)日：2014-07-14
申请号：KR1020120102214
申请日：2012-09-14
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/51 , H04N19/139
CPC classification number: H04N19/56 , H04N19/105 , H04N19/13 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/70
Abstract: 예측 움직임 벡터 유도 방법 및 이러한 방법을 사용하는 장치가 개시되어 있다. 본 발명에 따른 영상 복호화 장치는 후보 예측 움직임 벡터 리스트에 포함된 후보 예측 움직임 벡터 중 예측 대상 블록에 대한 화면 간 예측을 수행하기 위해 사용되는 예측 움직임 벡터에 대한 정보를 복호화하는 엔트로피 복호화부; 및 상기 예측 대상 블록의 주변 예측 블록으로부터 복수개의 공간적 후보 예측 움직임 벡터 관련 정보를 결정하고 상기 복수개의 공간적 후보 예측 움직임 벡터 관련 정보를 기초로 시간적 후보 예측 움직임 벡터 관련 정보를 결정하여 상기 후보 예측 움직임 벡터 리스트를 생성하는 예측부를 포함할 수 있다. 따라서, 최적의 예측 움직임 벡터를 유도시 발생하는 복잡도를 줄이고 부호화 효율을 높일 수 있다.
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公开(公告)号：KR101336577B1
公开(公告)日：2013-12-03
申请号：KR1020120064996
申请日：2012-06-18
Applicant: 한국항공대학교산학협력단
IPC: H04N19/50
CPC classification number: H04N19/513 , H04N19/176
Abstract: The present invention relates to an apparatus for inducing a motion vector and an induction method for the same, which is capable of inducing an additional MVP in a left candidate unit or inducing an MVP from an induction candidate group if an upper candidate unit MVP of a prediction unit is not valid when predicting two or more spatial MVPs. According to the present invention, the induction method using the apparatus comprising a motion vector induction unit, a redundancy check unit, a size limit unit and a motion vector addition unit comprises the steps of: (c) combining a left candidate block and an upper candidate block adjacent to a prediction unit to be encoded or decoded to form an induction candidate group when inducing a spatial MVP using the motion vector induction unit; (d) setting the induction conditions of the induction candidate group using the motion vector induction unit; and (e) determining the induction conditions to induce an MVP for each induction candidate group, wherein the (c) step includes a scaling condition setting step for determining whether to scale the induction candidate group. [Reference numerals] (AA) Step S200
Abstract translation: 本发明涉及一种用于诱导运动矢量的装置及其感应方法，其能够在左候选单元中引入附加的MVP或者从感应候选组中诱导MVP，如果上级候选单元MVP为 预测单位在预测两个或多个空间MVP时无效。 根据本发明，使用包括运动矢量感应单元，冗余校验单元，大小限制单元和运动矢量相加单元的装置的感应方法包括以下步骤：（c）组合左候选块和上位 候选块与预测单元相邻以被编码或解码以在使用运动矢量感应单元诱导空间MVP时形成感应候选组; （d）使用运动矢量感应单元设定感应候选组的诱导条件; （e）确定诱导条件以诱导每个诱导候选组的MVP，其中（c）步骤包括用于确定是否缩放感应候选组的缩放条件设置步骤。 （标号）（AA）步骤S200
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公开(公告)号：KR1020130113400A
公开(公告)日：2013-10-15
申请号：KR1020130105562
申请日：2013-09-03
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04N19/56 , H04N19/105 , H04N19/13 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/70
Abstract: PURPOSE: A predicted motion vector inducing method and a device using the method are provided to compose a candidate predicted vector list and calculate a predicted motion vector. CONSTITUTION: A plurality of spatial candidate predicted motion vector related information from the peripheral predicted block of a prediction target block is determined. Time candidate predicted motion vector related information is determined based on the plurality of spatial candidate predicted motion vector related information. A candidate predicted motion vector list is configured, based on the spatial candidate predicted motion vector related information and the time candidate predicted motion vector related information (S1200). [Reference numerals] (AA) Start; (BB) End; (S1200) Calculate a predicted motion vector list of a candidate; (S1210) Draw a predicted motion vector of a predicted block based on the predicted motion vector list of a candidate
Abstract translation: 目的：提供一种预测运动矢量诱导方法和使用该方法的装置，以组成候选预测向量列表并计算预测的运动矢量。 构成：确定来自预测对象块的外围预测块的多个空间候选预测运动矢量相关信息。 基于多个空间候选预测运动矢量相关信息来确定时间候选预测运动矢量相关信息。 基于空间候选预测运动矢量相关信息和时间候选预测运动矢量相关信息来配置候选预测运动矢量列表（S1200）。 （附图标记）（AA）开始; （BB）结束; （S1200）计算候选的预测运动矢量列表; （S1210）基于预测的候选者的运动矢量列表绘制预测块的预测运动矢量
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Patent Agency Ranking
公开(公告)号：KR1020130088079A
公开(公告)日：2013-08-07
申请号：KR1020130010488
申请日：2013-01-30
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/59
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: PURPOSE: An intra prediction mode encoding/decoding method and an apparatus thereof are provided to derive a most probable mode (MPM) from a peripheral prediction unit during the encoding/decoding of an intra prediction mode, and perform alignment operation according to the presence of an MPM having the same prediction mode as the intra prediction mode of a current prediction unit among the derived MPMs, thereby reducing the computational complexity of an image encoder/decoder. CONSTITUTION: If there is an MPM having the same prediction mode as the intra prediction mode of a current prediction unit among MPMs derived from a peripheral prediction unit adjacent to the current prediction unit, an encoder and/or decoder encodes and/or decodes an index indicating which MPM is identical to the intra prediction mode of the current prediction unit (S1010~S1030). If not so, the encoder and/or decoder align the derived MPMs based on the mode value of the MPM. By using a residual intra prediction mode, the intra prediction mode of the current prediction unit is encoded and/or decoded (S1040,S1050). [Reference numerals] (S1010) Derive MPMs from a peripheral prediction unit; (S1020) Intra prediction mode of a current prediction unit (Intramode) == MPM ? (prev_intra_luma_pred_flag encode / decode); (S1030) mpm_idx encode / decode; (S1040) Realign MPM by min/max(sorting operation); (S1050) Rem_intra_luma_pred_mode encode / decode
Abstract translation: 目的：提供帧内预测模式编码/解码方法及其装置，以在帧内预测模式的编码/解码期间从外围预测单元导出最可能模式（MPM），并根据存在 MPM具有与导出的MPM中的当前预测单元的帧内预测模式相同的预测模式，从而降低图像编码器/解码器的计算复杂度。 构成：如果从与当前预测单元相邻的外围预测单元导出的MPM中存在与当前预测单元的帧内预测模式相同的预测模式的MPM，则编码器和/或解码器对索引进行编码和/或解码 指示哪个MPM与当前预测单元的帧内预测模式相同（S1010〜S1030）。 如果不是这样，编码器和/或解码器基于MPM的模式值对准导出的MPM。 通过使用残差帧内预测模式，对当前预测单元的帧内预测模式进行编码和/或解码（S1040，S1050）。 （附图标记）（S1010）来自外围预测单元的MPM导出; （S1020）当前预测单元的帧内预测模式（Intramode）== MPM？ （prev_intra_luma_pred_flag encode / decode）; （S1030）mpm_idx编码/解码; （S1040）以最小/最大重新排列MPM（排序操作）; （S1050）Rem_intra_luma_pred_mode编码/解码
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公开(公告)号：KR1020130030240A
公开(公告)日：2013-03-26
申请号：KR1020120102763
申请日：2012-09-17
Applicant: 한국항공대학교산학협력단
IPC: H04N19/50 , H04N19/13 , H04N19/119 , H04N19/70
CPC classification number: H04N19/13 , H04N19/103 , H04N19/119 , H04N19/184
Abstract: PURPOSE: An image encoding/decoding method and a device thereof are provided to improve image decoding efficiency by performing a combination decoding process for a plurality of syntax element values corresponding to the same syntax element or different syntax elements. CONSTITUTION: An decoder performs entropy decoding for information about a combination-encoded syntax element(S810). The decoder obtains encoding information corresponding to decoding information based on the information about the combination-encoded syntax element(S820). The decoder generates a restoration block corresponding to a decoding target block based on the obtained encoding information(S830). [Reference numerals] (S810) Decoding entropy; (S820) Obtaining decoding information; (S830) Generating a restoration block based on the decoding information
Abstract translation: 目的：提供一种图像编码/解码方法及其装置，以通过对与相同语法元素或不同语法元素对应的多个语法元素值执行组合解码处理来提高图像解码效率。 构成：解码器对于组合编码语法元素的信息执行熵解码（S810）。 解码器基于关于组合编码语法元素的信息获得与解码信息相对应的编码信息（S820）。 解码器基于获得的编码信息生成与解码目标块相对应的恢复块（S830）。 （参考标号）（S810）解码熵; （S820）获取解码信息; （S830）基于解码信息生成恢复块
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公开(公告)号：KR1020130030181A
公开(公告)日：2013-03-26
申请号：KR1020120005916
申请日：2012-01-18
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/51 , H04N19/139
CPC classification number: H04N19/56 , H04N19/105 , H04N19/13 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/70
Abstract: PURPOSE: A method for encoding and decoding a motion vector by using a motion vector predictor and a device thereof are provided to increase encoding efficiency by efficiently encoding and decoding the motion vector. CONSTITUTION: When an MV(Motion Vector) encoding/decoding device performs MV prediction, the device performs a step(0) for inducing a left MV predictor, a step(1) for inducing an upper-end MV predictor, and a step(2) for inducing a temporal MV predictor. When the three MV predictors are induced, the device checks redundancy of an MV to remove a MV predictor having the same MV from an MV predictor list. [Reference numerals] (AA) When performing motion vector prediction; (BB) [0]step of inducing a left motion vector predictor; (CC) [1]step of inducing a right motion vector predictor; (DD) [2]step of inducing a temporal motion vector predictor; (EE) Image encoding/decoding method and apparatus performing the above in parallel
Abstract translation: 目的：提供一种通过使用运动矢量预测器及其装置对运动矢量进行编码和解码的方法，以通过有效地对运动矢量进行编码和解码来提高编码效率。 构成：当MV（运动矢量）编码/解码装置执行MV预测时，装置执行用于诱导左MV预测器的步骤（0），用于诱导上级MV预测器的步骤（1）和步骤 2）用于诱导时间MV预测器。 当感应到三个MV预测器时，器件检查MV的冗余以从MV预测器列表中移除具有相同MV的MV预测器。 （标号）（AA）进行运动矢量预测时， （BB）[0]诱导左运动矢量预测器的步骤; （CC）[1]诱导右运动矢量预测器的步骤; （DD）[2]诱导时间运动矢量预测器的步骤; （EE）并行执行上述的图像编码/解码方法和装置
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公开(公告)号：KR101237411B1
公开(公告)日：2013-02-27
申请号：KR1020110031265
申请日：2011-04-05
Applicant: 한국항공대학교산학협력단
IPC: H04N19/70 , H04N19/103
Abstract: 본 발명은 비디오 압축 표준인 H.264/AVC와 비디오부호화연합팀(JCT-VC)에서 표준화 중인 차세대 동영상 압축기술(HEVC)의 신택스 구조에 관한 것으로, 본 발명에 따른 비디오 코덱의 예측단위 신택스 시스템을 이용한 예측단위 구분 방법은 분할여부통지부를 이용하여, 신택스 요소에 부호 없는 정수 1비트를 할당하여, 현재 예측단위의 분할여부를 통지하는 단계, 예측모드통지부를 이용하여, 분할 여부에 따라 신택스 요소에 부호 없는 정수 2비트 또는 정수1비트를 할당하여, 예측 모드를 통지하는 단계 및 예측단위통지부를 이용하여, 예측단위별 확률 분포를 조사하여, 부호 없는 정수 2비트 또는 부호 없는 정수 지수 골룸 코드를 할당하여, 예측단위를 통지하는 단계를 포함하는 기술적 것을 특징으로 한다.
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公开(公告)号：KR101206698B1
公开(公告)日：2012-11-30
申请号：KR1020110100706
申请日：2011-10-04
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/234
CPC classification number: H04L65/60 , G06Q90/00 , H04L65/4069 , H04L65/4084 , H04L65/4092 , H04L65/80 , H04L67/02 , H04N21/23439 , H04N21/2358 , H04N21/43 , H04N21/6125 , H04N21/84 , H04N21/845 , H04N21/8541
Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. The metadata may include a start time attribute and/or a duration attribute of each of the periods. The metadata may determine a start time of each of the periods, and a start time of each of segments included in each of the periods. A terminal may access segments included in each of the periods, may decode and render data of media content included in the segments, and may play back the media content.
Abstract translation: 提供了一种使用媒体内容的元数据的自适应超文本传输协议（HTTP）流式传输服务的方法和装置。 媒体内容可以包括一个或多个时段的序列。 元数据可以包括每个周期的开始时间属性和/或持续时间属性。 元数据可以确定每个周期的开始时间以及每个周期中包括的每个片段的开始时间。 终端可以访问包括在每个时段中的段，可以解码并呈现包括在段中的媒体内容的数据，并且可以回放媒体内容。
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