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公开(公告)号：KR1020130105554A
公开(公告)日：2013-09-25
申请号：KR1020130028841
申请日：2013-03-18
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/593 , H04N19/33 , H04N19/463
Abstract: PURPOSE: An intra-prediction method is provided to increase the encoding efficiency of intra-prediction. CONSTITUTION: An intra-prediction mode of a prediction target block of an improvement layer is derived (S410). A substitute sample for an unavailable reference sample of the prediction target block based on a reference layer for the improvement layer is generated (S420). A prediction block for the prediction target block is generated using the intra-prediction mode and substitute sample (S430). [Reference numerals] (AA) Start; (BB) End; (S410) Intra estimation mode extraction; (S420) Replacement of an non-available reference sample with an available reference sample; (S430) Intra estimation implementation
Abstract translation: 目的：提供帧内预测方法，以提高帧内预测的编码效率。 构成：导出改善层的预测目标块的帧内预测模式（S410）。 生成用于基于用于改进层的参考层的预测对象块的不可用参考样本的替代样本（S420）。 使用帧内预测模式和替代样本来生成用于预测对象块的预测块（S430）。 （附图标记）（AA）开始; （BB）结束; （S410）内估计模式提取; （S420）用可用的参考样品替换不可用的参考样品; （S430）内部估计实施
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公开(公告)号：KR101286858B1
公开(公告)日：2013-07-17
申请号：KR1020090128053
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: H03M13/11
CPC classification number: H03M13/1111 , H03M13/1108 , H03M13/3707
Abstract: 저밀도 패리티 검사 부호를 위한 고속 복호 방법이 개시된다. 복호 방법은 LDPC 부호를 LLR 값으로 표현된 메시지를 이용하여 LDPC 복호 방식으로 복호화한다.
저밀도 패리티 검사 부호, Stochastic 복호기, 반복 복호 횟수-
公开(公告)号：KR101285058B1
公开(公告)日：2013-07-10
申请号：KR1020120102674
申请日：2012-09-17
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/234
CPC classification number: H04L65/60 , G06Q90/00 , H04L65/4069 , H04L65/4084 , H04L65/80 , H04L67/02 , H04N21/6125
Abstract: 미디어 콘텐츠에 대한 메타데이터를 사용하는 적응형 HTTP 스트리밍 서비스를 위한 방법 및 장치가 개시된다. 미디어 콘텐츠는 하나 이상의 주기들의 일련으로 구성된다. 메타데이터는 각 주기의 시작 시각 속성 및/또는 지속시간 속성을 포함할 수 있다. 메타데이터는 각 주기의 시작 시간 및 상기 주기가 포함하는 세그먼트들의 시작 시각을 결정한다. 단말은 각 주기가 포함하는 세그먼트들에 접근하고, 세그먼트들 내에 포함된 미디어 콘텐츠의 데이터를 디코딩 및 렌더링함으로써 미디어 콘텐츠를 재생한다.
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公开(公告)号：KR1020130037193A
公开(公告)日：2013-04-15
申请号：KR1020120110780
申请日：2012-10-05
Applicant: 한국전자통신연구원
CPC classification number: H04N19/00424 , H04N19/30 , H04N19/463 , H04N19/513
Abstract: PURPOSE: A method for encoding and decoding a scalable video and an apparatus using the same are provided to supply a desirable service to a user in various environments by providing a scalability function. CONSTITUTION: An encoder and a decoder determine the location of a reference standard sample corresponding to an enhancement reference sample in a reference layer based on the location of the enhancement reference sample which belongs to an enhancement layer. The encoder and the decoder determine at least one reference layer block in the reference layer based on the determined located(S410). The encoder and the decoder predict a current block which belongs to the enhancement layer based on the motion information of the reference layer block(S420). The location of the enhancement reference sample is determined as a relative location of the current block. [Reference numerals] (AA) Start; (BB) End; (S410) Drawing movement information; (S420) Generating a prediction block;
Abstract translation: 目的：提供一种用于对可缩放视频进行编码和解码的方法以及使用其的装置的方法，以通过提供可扩展性功能向各种环境中的用户提供期望的服务。 构成：编码器和解码器基于属于增强层的增强参考样本的位置来确定参考层中对应于增强参考样本的参考标准样本的位置。 编码器和解码器基于确定的位置确定参考层中的至少一个参考层块（S410）。 编码器和解码器基于参考层块的运动信息来预测属于增强层的当前块（S420）。 增强参考样本的位置被确定为当前块的相对位置。 （附图标记）（AA）开始; （BB）结束; （S410）绘制运动信息; （S420）生成预测块;
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公开(公告)号：KR1020130000334A
公开(公告)日：2013-01-02
申请号：KR1020120064635
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 an apparatus using the same are provided to provide various video services in terms of time, space, and/or image quality according to the various demands or utility purpose of a user. CONSTITUTION: An encoding/decoding apparatus determines whether to apply an inter layer prediction to an enhancement layer or not(S1610). In case the inter layer prediction is applied, the apparatus performs prediction about the current block of the enhancement layer based on generalized reference information generated from the information of a reference layer(S1630). The apparatus restores or encodes the current picture of the enhancement layer(S1640). [Reference numerals] (AA) Start; (BB) No; (CC) Yes; (DD) End; (S1610) Interlayer prediction?; (S1620) Prediction in an enhancement layer; (S1630) Prediction based on a generalized reference block, or generalized reference information generated from the information of a reference layer; (S1640) Picture restoration of the enhancement layer
Abstract translation: 目的：提供可扩展的视频编码和解码方法以及使用该方法的装置，以根据用户的各种需求或实用目的在时间，空间和/或图像质量方面提供各种视频服务。 构成：编码/解码装置确定是否对增强层应用帧间预测（S1610）。 在应用层间预测的情况下，设备基于从参考层的信息生成的广义参考信息来执行关于增强层的当前块的预测（S1630）。 该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）层间预测 （S1620）增强层中的预测; （S1630）基于广义参考块的预测或从参考层的信息生成的广义参考信息; （S1640）增强层的图像恢复
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Patent Agency Ranking
公开(公告)号：KR1020120122994A
公开(公告)日：2012-11-07
申请号：KR1020120102673
申请日：2012-09-17
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04N21/4355 , H04L29/06489
Abstract: PURPOSE: An apparatus and a method for providing streaming contents are provided to generate an URL(uniform resource locator) of a segment by mapping any base URL elements from one or more base URL elements with a source URL attribute of the segment. CONSTITUTION: A server(110) can host DASH(dynamic adaptive streaming over HTTP) segments. A terminal(100) receives meta data(120) of a media from the server. The meta data includes the base URL element. The terminal processes the received meta data(130). The terminal extracts information provided through the meta data or the information included in the meta data. The terminal accesses the segment of the media based on the information provided through the meta data(140,150). [Reference numerals] (100) Terminal; (110) Server; (120) Meta data; (130) Meta data processing; (140) Segment request; (150) Segment transmission; (160) Decoding and rendering
Abstract translation: 目的：提供一种用于提供流内容的装置和方法，以通过将来自一个或多个基本URL元素的任何基本URL元素与该片段的源URL属性进行映射来生成片段的URL（统一资源定位符）。 构成：服务器（110）可以托管DASH（基于HTTP的动态自适应流）段。 终端（100）从服务器接收媒体的元数据（120）。 元数据包括基本URL元素。 终端处理所接收的元数据（130）。 终端提取通过元数据提供的信息或包含在元数据中的信息。 终端基于通过元数据提供的信息来访问媒体的片段（140,150）。 （附图标记）（100）端子; （110）服务器; （120）元数据; （130）元数据处理; （140）段请求; （150）段传输; （160）解码和渲染
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公开(公告)号：KR1020120100799A
公开(公告)日：2012-09-12
申请号：KR1020120021745
申请日：2012-03-02
Applicant: 한국전자통신연구원
IPC: H04N21/63 , H04N21/236
CPC classification number: H04N21/631 , H04N21/2343 , H04N21/23605
Abstract: PURPOSE: An interface and a media data supplying method for supplying media data are provided to give a standard for distributing a role of a transfer layer and a role of an encapsulation layer. CONSTITUTION: An encapsulation layer encapsulates encoded media data. A transfer layer transfers the encapsulated media data to the other entity from a specific entity. A control layer controls the transmission of the media data. The encapsulation layer includes a depend function of payload or media. The transfer layer includes an independent function of the payload or media. [Reference numerals] (AA) E-Layer; (BB) Media Packetization; (CC) Media Synchronization; (DD,OO) Additional function; (EE) Fragmentation; (FF) Aggregation; (GG) Application-Dependent Error Handling; (HH) Operation dependant to payload(media); (II) D-Layer; (JJ) Multiplexing; (KK) Timing Information for Inter-flow Synchronization; (LL) Timing Information for System Synchronization; (MM) Generic Error Handling; (NN) Real time media flow control; (PP) Operation independent to payload(media); (QQ) UDP/TCP; (RR) IP; (SS) Transfer operation
Abstract translation: 目的：提供一种用于提供媒体数据的接口和媒体数据提供方法，以提供分配传输层角色和封装层角色的标准。 构成：封装层封装编码的媒体数据。 转移层将封装的媒体数据从特定实体传送到另一个实体。 控制层控制媒体数据的传输。 封装层包括有效载荷或介质的依赖功能。 传输层包括有效载荷或介质的独立功能。 （附图标记）（AA）E层; （BB）媒体分组化; （CC）媒体同步; （DD，OO）附加功能; （EE）碎片; （FF）聚集; （GG）应用依赖错误处理; （HH）依赖有效载荷（媒体）的操作; （II）D层; （JJ）复用; （KK）流间同步定时信息; （LL）系统同步时序信息; （MM）通用错误处理; （NN）实时媒体流控制; （PP）独立于有效载荷（媒体）的操作; （QQ）UDP / TCP; （RR）IP; （SS）传输操作
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公开(公告)号：KR101180540B1
公开(公告)日：2012-09-06
申请号：KR1020110030790
申请日：2011-04-04
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
CPC classification number: H04L65/60 , H04L1/0042 , H04L29/06027 , H04L47/19 , H04L47/28 , H04L65/604 , H04L65/605 , H04L65/607 , H04L65/80 , H04L69/163 , H04N21/4302
Abstract: Provided is an apparatus and method for transmitting and receiving a streaming service. An inter-arrival jitter may correspond to a delay variation in arrival time between TCP packets arriving at an apparatus for receiving the streaming service. The apparatus for receiving the streaming service may determine a de-jitter buffering time to absorb a network jitter before TS packets in a TCP packet is input to a T-STD buffer model. Based on the de-jitter buffering time, an initial playout delay lime at the apparatus for receiving the streaming service may be determined.
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公开(公告)号：KR1020120084275A
公开(公告)日：2012-07-27
申请号：KR1020120006374
申请日：2012-01-19
Applicant: 한국전자통신연구원
IPC: H04N21/236
CPC classification number: H04L65/608 , H04N21/236 , H04N21/2381 , H04N21/4622 , H04N21/6125 , H04N21/643 , H04N21/8451
Abstract: PURPOSE: A method of transporting media contents over single port or multiple port and an apparatus for performing the same are provided to transport media contents regardless of the number of servers and the existence and nonexistence of additional information. CONSTITUTION: A server generates substream ID including assignment information of the port of a client in order to transmit contents component including at least one among video stream, audio stream, and signaling stream to a client(S510). The server transmits the substream ID to a client(S520). The server transmits the contents component to the client through one or more ports of the client(S530).
Abstract translation: 目的：无论服务器数量多少以及附加信息的存在和不存在，都会提供一种通过单端口或多端口传输媒体内容的方法及其执行装置，以传送媒体内容。 构成：服务器产生包括客户端口的分配信息的子流ID，以便将包括视频流，音频流和信令流中的至少一个的内容分量发送到客户端（S510）。 服务器将子流ID发送给客户端（S520）。 服务器通过客户端的一个或多个端口将内容组件发送给客户端（S530）。
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公开(公告)号：KR1020120076294A
公开(公告)日：2012-07-09
申请号：KR1020110088325
申请日：2011-09-01
Applicant: 한국전자통신연구원
CPC classification number: H04L65/60 , H04L65/4084 , H04L67/2804 , H04N21/23439 , H04N21/2393 , H04N21/25825 , H04N21/26258 , H04N21/64322 , H04N21/6437 , H04N21/6582 , H04N21/8456
Abstract: PURPOSE: An apparatus for providing streaming contents and a method thereof are provided to efficiently divide media information in active HTTP streaming by using general media information and specific media information. CONSTITUTION: A terminal(110) receives meta data of a media or the meta data about a specific cycle of the media from a server(100)(610). The terminal processes the meta data about the specific cycle(620). The terminal extracts information provided through the meta data. The terminal requests a server of segments(630). The server extracts a data part suitable for the requested segments if there is a need to parse a media(640). The server transmits the segments suitable for each request from the terminal to the terminal(650). The terminal plays the media by decoding and rendering data in the media included within the segments(660).
Abstract translation: 目的：提供一种用于提供流内容的装置及其方法，用于通过使用通用媒体信息和特定媒体信息来有效地划分主动HTTP流中的媒体信息。 构成：终端（110）从服务器（100）（610）接收媒体的元数据或关于媒体的特定周期的元数据。 终端处理关于特定周期的元数据（620）。 终端提取通过元数据提供的信息。 终端请求段的服务器（630）。 如果需要解析介质，则服务器提取适合于所请求段的数据部分（640）。 服务器将适合于每个请求的段从终端发送到终端（650）。 终端通过在包括在段（660）内的媒体中解码和呈现数据来播放媒体。
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