公开(公告)号：KR1020130067659A

公开(公告)日：2013-06-25

申请号：KR1020110134449

申请日：2011-12-14

Applicant: 한국전자통신연구원 ,  선문대학교 산학협력단

Inventor： 김태정 ,  김창기 ,  유정주 ,  정영호 ,  홍진우 ,  정현기 ,  김병규

IPC: H04N19/30 ,  H04N19/103 ,  H04N19/567 ,  H04N19/176

CPC classification number: H04N19/30 ,  H04N19/103 ,  H04N19/176 ,  H04N19/567

Abstract: PURPOSE: A directional information based fast mode decision method in scalable video coding is provided to perform real time processing a process of scalable video coding by speeding up an encoding process. CONSTITUTION: A video encoder applies a decision block according to a motion encoding result with respect to a lower layer of an inputted video frame to motion encoding of a higher layer. The video encoder decides a prediction candidate block mode of the higher layer using directional information according to the motion encoding of the higher layer and applies direction information in the neighboring blocks to a current block(440). The video encoder decides candidate block modes of the current block which uses the directional information of the neighboring blocks, calculates RDC(Rate Distortion Cost) with respect to the decided candidate blocks and decides the final encoding block mode(450,460). [Reference numerals] (450) Calculating candidate modes; (460) Setting an optimized mode; (AA) Start; (BB) Optimized mode of lower layer is SKIP or 16X16?; (CC) Optimized mode of lower layer is SKIP or 16X8?; (DD) Optimized mode of lower layer is SKIP or 8X16?; (EE) Optimized mode of lower layer is SKIP or 8X8?; (FF,GG,HH,II,SS,TT) Yes; (JJ) Adding SKIP and 16X16 on every candidate mode; (KK) Adding SKIP and 16X8 on every candidate mode; (LL) Adding SKIP and 8X16 on every candidate mode; (MM) Adding SKIP and 8X8 on every candidate mode; (NN) End; (OO) The direction of the optimized mode of lower layer is the front?; (PP) The direction of the optimized mode of lower layer is the rear?; (QQ) No; (RR) Adding the optimized mode of adjacent blocks on every candidate mode; (UU) Adding the optimized mode of adjacent blocks on candidate modes in front; (VV) Adding the optimized mode of adjacent blocks on candidate modes in rear

Abstract translation: 目的：提供可伸缩视频编码中的基于方向信息的快速模式决策方法，通过加快编码过程来执行可伸缩视频编码过程的实时处理。 构成：视频编码器根据关于输入视频帧的较低层的运动编码结果将决策块应用于较高层的运动编码。 视频编码器使用根据较高层的运动编码的方向信息来决定较高层的预测候选块模式，并将相邻块中的方向信息应用于当前块（440）。 视频编码器确定使用相邻块的方向信息的当前块的候选块模式，针对所确定的候选块计算RDC（速率失真成本），并确定最终编码块模式（450,460）。 （附图标记）（450）计算候选模式; （460）设置优化模式; （AA）开始; （BB）下层优化模式为SKIP或16X16？ （CC）下层优化模式为SKIP或16X8？ （DD）下层优化模式为SKIP或8X16？ （EE）下层优化模式为SKIP或8X8？ （FF，GG，HH，II，SS，TT）是; （JJ）在每个候选模式下添加SKIP和16X16; （KK）在每个候选模式下添加SKIP和16X8; （LL）在每个候选模式下添加SKIP和8X16; （MM）在每个候选模式下添加SKIP和8X8; （NN）结束; （OO）下层优化方式的方向是前面？ （PP）下层优化方式的方向是后方; （QQ）否 （RR）在每个候选模式下添加相邻块的优化模式; （UU）在前面的候选模式中添加相邻块的优化模式; （VV）在后面的候选模式中添加相邻块的优化模式

公开(公告)号：KR1020110062914A

公开(公告)日：2011-06-10

申请号：KR1020090119782

申请日：2009-12-04

Applicant: 한국전자통신연구원

Inventor： 배성준 ,  유정주 ,  류원

IPC: H04N7/24

CPC classification number: H04N19/157 ,  H04N19/172 ,  H04N19/30

Abstract: PURPOSE: A time stamp allocation method for a video service having non-increasing frame order is provided to automatically calculate a time stamp by using a frame indicator when a video of a hierarchical frame rate structure is encoded. CONSTITUTION: A plurality of frames that are decoded in a non-increasing frame order based video encoding method is received. Time stamps are calculated by using frame rate indicators corresponding to each frame(S420). The time stamp of a current frame is added on a connection list(S440). The time stamp of the calculated current frame is stored according to the frame rate indicators. All time stamps are deleted if the current frame rate indicator is equivalent to the maximum frame rate(S460).

Abstract translation: 目的：提供具有不增加帧顺序的视频服务的时间标记分配方法，以便在分层帧率结构的视频被编码时通过使用帧指示符来自动计算时间标记。 构成：接收以不增加帧顺序的视频编码方式解码的多个帧。 通过使用与每个帧对应的帧率指示符来计算时间标记（S420）。 在连接列表上添加当前帧的时间戳（S440）。 计算出的当前帧的时间戳根据帧率指标进行存储。 如果当前帧速率指示符等于最大帧速率，则删除所有时间戳（S460）。

公开(公告)号：KR1020110053043A

公开(公告)日：2011-05-19

申请号：KR1020090109841

申请日：2009-11-13

Applicant: 한국전자통신연구원

Inventor： 김광용 ,  유정주 ,  류원

IPC: H04N21/43

CPC classification number: H04N21/26606 ,  H04N21/2381 ,  H04N21/2387 ,  H04N21/254 ,  H04N21/44209

Abstract: PURPOSE: A real-time on-demand service providing method and package content of an open type IPTV service environment are provided to download user providing content according to the request of a user. CONSTITUTION: The subscription of a package content provider is requested to a package content integrated management server(110) according to the request of a package content provider(100). The package contents provider is subscribed to the package content integrated management server. Package content use information is downloaded from the package content integrated management server. The package content is generated by using the downloaded package content use information.

Abstract translation: 目的：提供开放式IPTV服务环境的实时按需服务提供方法和包内容，以根据用户的请求下载提供内容的用户。 构成：根据包内容提供商（100）的请求，向包内容集成管理服务器（110）请求订阅包内容提供商。 包内容提供商订阅包内容集成管理服务器。 软件包内容使用信息从软件包内容集成管理服务器下载。 通过使用下载的包内容使用信息生成包内容。

公开(公告)号：KR1020100111834A

公开(公告)日：2010-10-18

申请号：KR1020090030237

申请日：2009-04-08

Applicant: 한국전자통신연구원

Inventor： 배성준 ,  유정주 ,  홍진우

IPC: H04W4/06

CPC classification number: H04L12/18

Abstract: PURPOSE: An adaptive transmission method of hierarchical contents for unicast transmission and multicast transmission by selecting a transmission mode according to a transmission state of a terminal is provided to reduce the load of the communication network by maximizing the data transmission rate of a basic transmission group. CONSTITUTION: A transmission server receives transmission state information from a terminal(302). The transmission server determines a transmission policy according to the transmission state information(304). The transmission server transmits a basic transmission group of hierarchical contents. The transmission server transmits the basic transmission group of the hierarchical contents to the terminals(306). The transmission server transmits a transmission group to the terminal(308).

Abstract translation: 目的：提供一种通过根据终端的传输状态选择传输模式的单播传输和组播传输的分层内容的自适应传输方法，以通过最大化基本传输组的数据传输速率来减少通信网络的负载。 构成：发送服务器从终端接收发送状态信息（302）。 传输服务器根据传输状态信息确定传输策略（304）。 传输服务器发送分层内容的基本传输组。 发送服务器将分层内容的基本发送组发送给终端（306）。 发送服务器向终端发送发送组（308）。

公开(公告)号：KR1020100034203A

公开(公告)日：2010-04-01

申请号：KR1020080093225

申请日：2008-09-23

Applicant: 한국전자통신연구원

Inventor： 배성준 ,  유정주 ,  홍진우 ,  고성제 ,  김혜수 ,  남형민

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04W24/10 ,  H04W28/06

Abstract: PURPOSE: An apparatus and a method for estimating channel capacity between terminals are provided to estimate the capacity of a channel using a data packet without using an additional packet for estimating the capacity of a channel. CONSTITUTION: A channel capacity average configuration unit(203) obtains the average value of channel capacities by the size of a data packet of data packets of different sizes. A linear model configuration unit(213) obtains a linear model of the channel capacity of a data packet using the average of the channel capacities. A channel capacity estimating unit(215) estimates the channel capacity of a data packet using the linear model. The linear model configuration unit generates the linear model of the channel capacity according to the size of the data packet using the average value and the real channel capacity of the data packets.

Abstract translation: 目的：提供用于估计终端之间的信道容量的装置和方法，以估计使用数据分组的信道的容量，而不使用用于估计信道容量的附加分组。 构成：信道容量平均配置单元（203）通过不同大小的数据分组的数据分组的大小来获得信道容量的平均值。 线性模型配置单元（213）使用信道容量的平均值来获得数据分组的信道容量的线性模型。 信道容量估计单元（215）使用线性模型估计数据分组的信道容量。 线性模型配置单元使用数据包的平均值和实际信道容量根据数据包的大小生成信道容量的线性模型。

公开(公告)号：KR1020100010612A

公开(公告)日：2010-02-02

申请号：KR1020080071563

申请日：2008-07-23

Applicant: 한국전자통신연구원

Inventor： 신일홍 ,  유정주 ,  홍진우 ,  임종수

IPC: H04N19/30

CPC classification number: H04N7/26255 ,  H04N19/103 ,  H04N19/117 ,  H04N19/159 ,  H04N19/174 ,  H04N19/182 ,  H04N19/33 ,  H04N19/44 ,  H04N19/59 ,  H04N19/61

Abstract: PURPOSE: A scalable video decoder utilizing a property of single loop decoding mode and controlling method thereof are provided to run an image enlargement calculation with macro block information and a neighboring task part of the lower layer, after an encoding of a lower layer, if texture or residual is needed in a higher layer encoding so reducing a necessary memory usage. CONSTITUTION: A macro block mode decision unit(110) determines the macro block mode of the higher layer when decrypting the scalable image. When the macroblock mode of the higher layer is an inter-layer reference mode. An enlargement operation unit(120) magnifies the texture by using the correspondence macro block data and a neighboring pixel information of the lower layer. Or the enlargement operation unit enlarges the residual by using a macro block information of a lower layer. A decoder unit(130) decodes the higher layer by using the texture or the residual enlargement.

Abstract translation: 目的：提供一种利用单循环解码模式及其控制方法的可扩展视频解码器，用于在下层编码之后运行具有宏块信息和下层相邻任务部分的图像放大计算，如果纹理 或需要较高层编码的余数，从而减少必要的内存使用。 构成：当解密可伸缩图像时，宏块模式决定单元（110）确定较高层的宏块模式。 当高层的宏块模式是层间参考模式时。 放大操作单元（120）通过使用对应宏块数据和下层的相邻像素信息来放大纹理。 或者放大操作单元通过使用下层的宏块信息来放大残差。 解码器单元（130）通过使用纹理或残余放大来解码较高层。

公开(公告)号：KR1020100008757A

公开(公告)日：2010-01-26

申请号：KR1020090062074

申请日：2009-07-08

Applicant: 한국전자통신연구원

Inventor： 탕쯔엉꽁 ,  강정원 ,  유정주 ,  홍진우

IPC: H04N19/30

CPC classification number: H04N21/234327 ,  H04N19/132 ,  H04N19/159 ,  H04N19/187 ,  H04N19/40 ,  H04N19/70 ,  H04N21/8451

Abstract: PURPOSE: A conversion apparatus is provided to rewrite an MGS(Medium Grained Scalability) based SVC(Scalable Video Coding) bit stream into an AVC(Advanced Video Coding) bit stream. CONSTITUTION: An extracting unit an MGS layer of a key picture included in an MGS based SVC bit stream. A generating unit(813) creates the residual signal by adding one or more MGS layers of the key picture through a CGS-to-AVC rewriter. A computing unit(814) computes the corrected residual signal about the key picture based on the difference between the residual signal and DCD(Drift-Compensating Data). A bit stream coding unit(815) creates bit stream of single layer based on predicted data and the corrected residual signal.

Abstract translation: 目的：提供一种转换装置，用于将基于SVC（可缩放视频编码）比特流的MGS（Medium Grained Scalability）改写为AVC（高级视频编码）比特流。 构成：提取单元包括在基于MGS的SVC位流中的关键画面的MGS层。 生成单元（813）通过CGS-AVC重写器添加关键画面的一个或多个MGS层来创建残差信号。 计算单元（814）基于残差信号和DCD（漂移补偿数据）之间的差计算关于关键图像的校正残差信号。 比特流编码单元（815）基于预测数据和校正的残差信号创建单层的比特流。

公开(公告)号：KR100938553B1

公开(公告)日：2010-01-22

申请号：KR1020080025002

申请日：2008-03-18

Applicant: 한국전자통신연구원

Inventor： 신일홍 ,  최해철 ,  정순흥 ,  유정주 ,  임종수 ,  홍진우

IPC: H04N19/30

Abstract: 본 발명은 스케일러블 영상 부/복호화기에서 주변 블록 정보를 이용한 바운더리 처리 방법 및 장치에 관한 것으로, H.264 스케일러블 영상 코덱(Scalable Video Codec: SVC)의 싱글-루프-디코딩(single-loop-decoding) 방식의 특성을 활용하여, 작은 하위 레이어의 부/복호화 시에 상위 레이어의 이미 복원된 정보를, 다운 샘플링 과정을 통해 하위 레이어의 대응 블록의 확대에 필요한 바운더리 정보로 이용하여, 영상 블록의 확대시에 필요한 바운더리 처리 방법을 제공한다.
영상 부호화, 영상 복호화, 레이어, 블록

公开(公告)号：KR100911994B1

公开(公告)日：2009-08-13

申请号：KR1020070080901

申请日：2007-08-10

Applicant: 한국전자통신연구원

Inventor： 장인선 ,  백승권 ,  장대영 ,  강경옥 ,  유정주 ,  강홍구 ,  이창헌 ,  이동금

IPC: G10L19/02 ,  H03M7/30 ,  H04N21/233

Abstract: 본 발명은 음성 및 오디오 신호의 코딩 및 디코딩에 관한 것으로서, 더욱 구체적으로는 HHT(Hilbert-Huang Transform)을 이용하여 음성 및 오디오신호와 같이 비정규적(non-stationary) 특성이 강한 입력신호를 동시에 부호화 및 복호화 할 수 있는 장치 및 방법에 관한 것이다.
본 발명은 입력신호에 대하여 HHT를 적용하여 각기 다른 주파수 대역을 갖는 신호들로 분리하는 단계와, 상기 분리된 신호 각각을 독립적으로 부호화하는 단계 및 상기 독립적으로 부호화된 각각의 신호를 다중화하는 단계를 포함하는 부호화 방법을 제공한다.
힐버트 변환, EMD, HHT, intrinsic mode function,

公开(公告)号：KR1020090066176A

公开(公告)日：2009-06-23

申请号：KR1020080013494

申请日：2008-02-14

Applicant: 한국전자통신연구원

Inventor： 청콩탕 ,  강정원 ,  유정주 ,  홍진우

IPC: H04N19/34 ,  H04N19/147

CPC classification number: H04N19/34 ,  H04N19/102 ,  H04N19/147 ,  H04N19/162 ,  H04N19/184

Abstract: A device and a method for generally extracting FGS(Fine Granular Scalability) from SVC(Scalable Video Coding) video with user preference are provided to supply an SVC bit stream having the FGS data according to a consumption environment. An R(Rate)-D(Distortion) data extractor(110) extracts R-D data of more than one space layer by analyzing a bit stream. A user preference collector(120) collects user preference for each space layer. A determination engine(130) determines an optimal bit rate for each space layer by using the bit rate and the user preference. A scaling engine(140) excludes FGS data not corresponding to the optimal bit rate for each space layer.

Abstract translation: 提供了一种用于从具有用户偏好的SVC（可缩放视频编码）视频中提取FGS（精细粒度可扩展性）的装置和方法，以根据消费环境提供具有FGS数据的SVC比特流。 R（Rate）-D（失真）数据提取器（110）通过分析比特流来提取多于一个空间层的R-D数据。 用户偏好收集器（120）收集每个空间层的用户偏好。 确定引擎（130）通过使用比特率和用户偏好来确定每个空间层的最佳比特率。 缩放引擎（140）排除不对应于每个空间层的最佳比特率的FGS数据。