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公开(公告)号：KR20180064597A
公开(公告)日：2018-06-15
申请号：KR20160164344
申请日：2016-12-05
Applicant: 한국전자통신연구원
IPC: H04N21/2343 , H04N19/50 , H04N21/434
Abstract: 본개시는콘텐츠랜덤액세스방법및 장치가개시된다. 본개시의일 실시예에따른스케줄링기반콘텐츠랜덤액세스방법은, 스케줄링정보에기초하여인터프레임으로의분기점을결정하는단계; 결정된분기점에해당하는인터프레임에연관된인트라프레임에대한선처리를수행하는단계; 및상기선처리된인트라프레임정보에기초하여상기인터프레임에대한복호화를수행하는단계를포함할수 있다.
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公开(公告)号：KR1020160109927A
公开(公告)日：2016-09-21
申请号：KR1020150035207
申请日：2015-03-13
Applicant: 한국전자통신연구원
CPC classification number: H04N13/363 , G03B21/56 , H04N13/128 , H04N13/327
Abstract: 본발명은최초스크린캘리브레이션이후파노라마영상투사시에도, 주기적으로혹은사용자의필요에따라은닉포인트를함께투사하여기하학보정을위한왜곡보정함수를생성함으로써자동기하학보정수행방법및 장치에관한것이다.
Abstract translation: 本发明涉及一种自动几何校正执行方法及其装置，其可以周期性地或者根据用户的需要来投影隐藏点，即使在初始屏幕校准之后投影全景图像以产生用于几何校正的失真校正功能。 该方法包括以下步骤：在多个投影仪的投影区域的重叠区域中设置至少一个隐藏点; 将设置的隐藏点与全景图像一起投影; 获得隐藏点的投影图像; 以及基于所述隐藏点的投影图像生成失真校正功能。
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公开(公告)号：KR1020150109919A
公开(公告)日：2015-10-02
申请号：KR1020140033486
申请日：2014-03-21
Applicant: 한국전자통신연구원
CPC classification number: H04N5/23238 , G06T3/0031
Abstract: 파노라마영상생성을위한시스템및 방법을제공한다. 독립적으로분산된복수의영상촬영장치를구비한파노라마영상시스템에서파노라마영상을생성하기위해복수의영상촬영장치중 촬영중심이유사한유효영상촬영장치를인지하며, 유효영상촬영장치중 협력촬영에적합한대표영상촬영장치를선정하고, 대표영상촬영장치별로군집된유효영상촬영장치로부터촬영된협력영상및 군집된유효영상촬영장치배치정보를이용하여협력형모자이크파노라마영상을생성한다.
Abstract translation: 提供了一种用于产生全景图像的方法和装置。 它包括识别在具有独立分布的拍摄装置的全景图像系统中用于产生全景图像的拍摄装置中具有类似拍摄中心的有效图像拍摄装置，选择适合于拍摄装置之间的合作摄影的代表性拍摄装置，并且生成合作的 通过使用分组的有效图像拍摄装置布置信息和从根据代表图像拍摄装置的分组的有效图像拍摄装置拍摄的拍摄的合作图像的马赛克全景图像。
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公开(公告)号：KR1020150010589A
公开(公告)日：2015-01-28
申请号：KR1020140079015
申请日：2014-06-26
Applicant: 한국전자통신연구원
CPC classification number: H04N21/2387 , H04L65/4084 , H04N21/262 , H04N21/8586
Abstract: A method of receiving content in a client is provided. The method according to an embodiment includes: receiving a spatial set identifier of at least one spatial object from a server; requesting a first content corresponding to the spatial set identifier from the server; and receiving the first content corresponding to the request from the server.
Abstract translation: 提供了一种在客户端中接收内容的方法。 根据实施例的方法包括：从服务器接收至少一个空间对象的空间集标识符; 从所述服务器请求与所述空间集标识符相对应的第一内容; 以及从所述服务器接收对应于所述请求的所述第一内容。
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公开(公告)号：KR1020130138638A
公开(公告)日：2013-12-19
申请号：KR1020120103995
申请日：2012-09-19
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04L1/0011 , H04L1/0002 , H04L1/0009 , H04L1/0014 , H04L1/0033 , H04L1/0041 , H04L1/203
Abstract: Effective multimedia transmission can be achieved by performing rate adaptation using a BER. The BER can be estimated by using modulation information and signal strength (FIG. 6 to FIG. 8) in an MAC layer, and can be compatibly used in different wireless networks by performing message standardization as follows. [Reference numerals] (100) Client;(150) Server;(203) Estimate channel capacity of a wireless network using an estimated BER;(205) Estimated channel capacity Cn;(207) Predict channel capacity using a feedback channel capacity estimate;(209) Adjust a video/channel coding rate optimally based on the predicted channel capacity;(210) Estimate a BER using additional information about a received packet;(211) Perform video coding and channel coding using the adjusted coding rate and transmit the coding result to a client
Abstract translation: 可以通过使用BER执行速率自适应来实现有效的多媒体传输。 可以通过在MAC层中使用调制信息和信号强度（图6至图8）来估计BER，并且可以通过如下执行消息标准化在不同的无线网络中兼容地使用BER。 （100）客户端;（150）服务器;（203）使用估计的BER估计无线网络的信道容量;（205）估计的信道容量Cn;（207）使用反馈信道容量估计来预测信道容量; （209）基于预测的信道容量最优调整视频/信道编码率;（210）使用关于接收到的分组的附加信息估计BER;（211）使用调整后的编码率进行视频编码和信道编码，并发送编码 结果给客户
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Patent Agency Ranking
公开(公告)号：KR1020120106520A
公开(公告)日：2012-09-26
申请号：KR1020110069001
申请日：2011-07-12
Applicant: 한국전자통신연구원
CPC classification number: H04N21/6379 , H04N21/2662 , H04N21/43637 , H04N21/44209 , H04N21/6131 , H04N21/6377
Abstract: PURPOSE: A channel rate prediction method which uses single strength information is provided to predict optimum video channel rate in a wireless network by using video quality distortion estimation function. CONSTITUTION: A terminal estimates current channel capacity. The terminal transmits the estimated current channel capacity. The server predicts video channel rate by using the current channel capacity. The server extracts a scalable video through the predicted video channel rate. The server performs channel coding of the extracted scalable video. The server transmits the channel-coded video to the terminal.
Abstract translation: 目的：提供使用单一强度信息的信道速率预测方法，以通过使用视频质量失真估计函数来预测无线网络中的最佳视频信道速率。 规定：终端估计当前信道容量。 终端发送估计的当前信道容量。 服务器通过使用当前通道容量来预测视频通道速率。 服务器通过预测的视频通道速率提取可缩放视频。 服务器执行提取的可伸缩视频的信道编码。 服务器将通道编码的视频发送到终端。
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公开(公告)号：KR1020120040622A
公开(公告)日：2012-04-27
申请号：KR1020100102154
申请日：2010-10-19
Applicant: 한국전자통신연구원
IPC: H04N7/14
CPC classification number: H04N7/144
Abstract: PURPOSE: A video communication method and a device thereof are provided to naturally exchange glances in video communication. CONSTITUTION: A monitor unit(220) is prepared for video communication. The monitor unit repeats the mode change between a video mode and a transparent mode according to a predetermined cycle. A camera unit(210) is located in the rear side of the monitor unit. The camera unit photographs a user image through a screen of the monitor unit.
Abstract translation: 目的：提供一种视频通信方法及其装置，用于在视频通信中自然地交换扫视。 规定：监视器单元（220）准备用于视频通信。 监视器单元根据预定周期重复视频模式和透明模式之间的模式切换。 相机单元（210）位于监视器单元的后侧。 相机单元通过显示器单元的屏幕拍摄用户图像。
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公开(公告)号：KR1020100081919A
公开(公告)日：2010-07-15
申请号：KR1020090127231
申请日：2009-12-18
Applicant: 한국전자통신연구원
CPC classification number: H04W28/06 , H04W28/04 , H04W84/18 , H04W88/181
Abstract: PURPOSE: A multi-hop based system using syndrome-based partial decoding and a method for operating thereof are provided to reduce an errors of a packet by transmitting a packet for maximizing goodput. CONSTITUTION: An error rate receiver(103) receives a BER(Bit Error Rate) from a node, and a packet generator(105) uses the BER to determine the size of packet for maximizing goodput, and generates a packet having the determined packet size. A coding unit(107) codes the generated packet and transmits the coded packet to the node. A packet generating unit determines the packet size as the target packet size, wherein the packet size corresponds to the maximized goodput using an SPD(Syndrome-based Partial Decoding).
Abstract translation: 目的：提供一种使用基于校正子的部分解码的多跳系统及其操作方法，以通过发送用于最大化吞吐量的分组来减少分组的错误。 构成：错误率接收器（103）从节点接收BER（误码率），并且分组生成器（105）使用BER来确定用于最大化吞吐量的分组的大小，并且生成具有确定的分组大小的分组 。 编码单元（107）对所生成的分组进行编码，并将编码的分组发送到节点。 分组生成单元将分组大小确定为目标分组大小，其中分组大小对应于使用SPD（基于综合征的部分解码）的最大化吞吐量。
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79.发明授权실시간으로 비트스트림의 공간 해상도를 변환할 수 있는스케일러블 비디오 코딩 방법 및 그 방법을 이용한 코덱 失效一种用于实时改变比特流的空间可缩放性的可缩放视频编码方法和使用其的编解码器
公开(公告)号：KR100825743B1
公开(公告)日：2008-04-29
申请号：KR1020060112777
申请日：2006-11-15
Applicant: 한국전자통신연구원 , 한국정보통신대학교 산학협력단
IPC: H04N19/46 , H04N19/177 , H04N19/51
CPC classification number: H04N21/234327 , H04N19/107 , H04N19/134 , H04N19/147 , H04N19/157 , H04N19/177 , H04N19/187 , H04N19/31 , H04N19/33 , H04N19/34 , H04N19/36 , H04N19/58 , H04N19/59 , H04N19/61 , H04N19/70 , H04N19/89 , H04N21/2662 , H04N21/440227 , H04N21/440263
Abstract: 본 발명은 실시간으로 공간 해상도를 변화시킬 수 있도록 부호화하고, 이를 이용하여 실시간으로 공간 해상도를 변화시키고 공간 해상도가 변했음을 알리는 시그널링 메시지를 추가하며 비트스트림을 추출하고, 추가의 정보 없이 능동적으로 공간 해상도 변경 유무를 파악하여 공간 해상도가 실시간으로 변하는 비트스트림을 복호화하는 코딩 방법 및 그 방법을 이용한 코덱을 제공하는 것이다.
이로써 비디오를 부호화 및 복호화 시 실시간으로 가변하는 환경을 가지는 네트워크의 제약이 있는 경우 또는 디코더 단에서 부분적으로 공간해상도를 변경하여 비디오를 소비할 필요가 있을 때, 비디오의 공간해상도의 변화에 능동적으로 대처하여 효율적으로 시청할 수 있는 방법을 제공할 수 있다.
공간 해상도, 스케일러빌러티, 추출기, 공간 스케일러빌러티-
公开(公告)号：KR1020070074500A
公开(公告)日：2007-07-12
申请号：KR1020070002188
申请日：2007-01-08
Applicant: 한국전자통신연구원
IPC: H04N19/30
CPC classification number: H04N19/00 , H04N19/34 , H04N21/234318 , H04N21/2662 , H04N21/64723 , H04N21/8451
Abstract: A method for transmitting and receiving an SVC(Scalable Video Coding) file by a scalable layer unit and an apparatus therefor are provided to form a layer descriptor of an NALU(Network Abstraction Layer Unit) and a byte unit in meta data and access the SVC file by the scalable layer unit. An SVC transmission layer determining unit(510) determines a transmission scalable layer to be transmitted to a network among at least one or more scalable layers included in respective frames of media data of an SVC file on the basis of application level information collected from the network to determine an application degree of scalable coding. An SVC application transmission unit(500) extracts the transmission scalable layer from the media data of the SVC file and transmits a generated bit stream through a layer descriptor indicating access information of at least one or more scalable layers used in the respective frames of the SVC file.
Abstract translation: 提供了一种用于通过可伸缩层单元及其装置发送和接收SVC（可缩放视频编码）文件的方法，以形成NALU（网络抽象层单元）的层描述符和元数据中的字节单元，并访问SVC 文件由可伸缩层单元。 SVC传输层确定单元（510）基于从网络收集的应用级别信息，确定在包含在SVC文件的媒体数据的各个帧中的至少一个或多个可伸缩层中发送到网络的传输可伸缩层 以确定可伸缩编码的应用程度。 SVC应用传输单元（500）从SVC文件的媒体数据中提取传输可伸缩层，并通过表示在SVC的各个帧中使用的至少一个或多个可伸缩层的访问信息的层描述符发送生成的比特流 文件。
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