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公开(公告)号：KR101829448B1
公开(公告)日：2018-03-29
申请号：KR1020140125870
申请日：2014-09-22
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/2381 , H04N21/235
Abstract: 콘텐츠에대한메타데이터를사용하는적응형 HTTP 스트리밍서비스를위한방법및 장치가개시된다. 상기의메타데이터는초기의버퍼된미디어콘텐츠의최소양을가리키는최소버퍼시간속성을포함한다. 단말은콘텐츠의재생전에서버로부터콘텐츠를전송받아적어도상기의최소양만큼버퍼링한다. 상기의메타데이터는 URL이가리키는대상의범위를지정하는범위속성을포함한다. 단말은상기 URL로부터상기범위속성이지정하는바이트들을수신하고, 수신된바이트들을사용하여콘텐츠를재생한다.
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公开(公告)号：KR101829445B1
公开(公告)日：2018-03-29
申请号：KR1020140002413
申请日：2014-01-08
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/2662 , H04N21/238 , H04N7/24
Abstract: 콘텐츠에대한메타데이터를사용하는적응형 HTTP 스트리밍서비스를위한방법및 장치가개시된다. 상기의메타데이터는초기의버퍼된미디어콘텐츠의최소양을가리키는최소버퍼시간속성을포함한다. 단말은콘텐츠의재생전에서버로부터콘텐츠를전송받아적어도상기의최소양만큼버퍼링한다. 상기의메타데이터는 URL이가리키는대상의범위를지정하는범위속성을포함한다. 단말은상기 URL로부터상기범위속성이지정하는바이트들을수신하고, 수신된바이트들을사용하여콘텐츠를재생한다.
Abstract translation: 公开了一种使用用于内容的元数据的自适应HTTP流式传输服务的方法和设备。 元数据包括指示初始缓冲媒体内容的最小量的最小缓冲时间属性。 终端在再现内容之前从服务器接收内容并将内容缓存至少最小量。 元数据包含一个范围属性，用于指定URL指向的目标范围。 终端从URL接收范围属性指定的字节，并使用接收到的字节再现内容。
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公开(公告)号：KR1020160055767A
公开(公告)日：2016-05-18
申请号：KR1020160055701
申请日：2016-05-04
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/593 , H04N19/11 , H04N19/105 , H04N19/119 , H04N19/13
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: 인트라예측모드부호화및 복호화방법, 그리고영상복호화장치및 영상부호화장치가개시된다. 상기인트라예측모드복호화방법은현재예측단위에인접한주변예측단위로부터 MPM(Most Probable Mode)을도출하는단계및 상기도출된 MPM 중상기현재예측단위의인트라예측모드와동일한예측모드를가지는 MPM이존재하는지여부를지시하는 MPM 플래그를기반으로상기현재예측단위의인트라예측모드를도출하는단계를포함한다.
Abstract translation: 公开了一种用于帧内预测模式的编码/解码的方法，用于对图像进行解码的装置以及用于编码图像的装置。 根据本发明，该方法包括：从与当前预测单元相邻的周围预测单元中引入最可能模式（MPM）的步骤; 以及基于指示在所述诱导的MPM中是否存在具有与当前预测单元的帧内预测模式相同的预测模式的MPM的MPM标志来诱导当前预测单元的帧内预测模式的步骤。 本发明提供一种用于以增强的图像编码/解码效率对图像进行编码/解码的方法。
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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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Patent Agency Ranking
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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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：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：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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公开(公告)号：KR1020120096863A
公开(公告)日：2012-08-31
申请号：KR1020110099305
申请日：2011-09-29
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/147 , H04N19/30 , H04N19/176
CPC classification number: H04N19/147 , H04N19/36
Abstract: PURPOSE: A bit rate controlling method for hierarchical coding structure capable of encoding a video of high efficiency is provided to apply a rate-distortion characteristic to a secondary rate-distortion model by using the property of rate-distortion according to a frame type of each time layer in consideration of a hierarchical coding structure. CONSTITUTION: QP(Quantization Parameter) of a first frame and QP of a second frame are determined by using actual generation bit quantity about each frame type of each temporal layer(301). Increase or reduction of CP id determined about QP of the first frame according to a target bit quantity of the second frame within the same time layer.
Abstract translation: 目的：提供一种能够对高效率的视频进行编码的分层编码结构的比特率控制方法，通过使用根据每个帧的帧类型的速率失真特性，对二次速率失真模型应用速率失真特性 考虑到分层编码结构的时间层。 构成：通过使用关于每个时间层（301）的每个帧类型的实际生成位量来确定第一帧的QP（量化参数）和第二帧的QP。 根据同一时间层内的第二帧的目标比特数，增加或减少关于第一帧的QP的CP id。
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