公开(公告)号：KR1020140002471A

公开(公告)日：2014-01-08

申请号：KR1020130021539

申请日：2013-02-27

Applicant: 한국전자통신연구원

Inventor： 김태정 ,  김재호 ,  김창기 ,  유정주 ,  홍진우

IPC: H04N21/23 ,  H04N21/43 ,  H04N21/426

CPC classification number: H04N13/194 ,  H04N19/44 ,  H04N21/234327 ,  H04N21/2368 ,  H04N21/615

Abstract: Disclosed is a transmission system for a hybrid three-dimensional (3D) content service. The transmission system includes an SVC encoder encoding 3D content of a left image and a right image and a hybrid network transmission streaming module transmitting a base layer (BL) stream among scalable bit streams encoded by the SVC encoder to a client system through a radio network and transmitting an enhancement layer (EL) stream to the client system through an internet network. [Reference numerals] (100) Transmission system; (110) SVC encoder; (120) Hybrid network transmission streaming module; (200) Client system; (210) Hybrid network reception module; (220) Adaptive SVC decoder; (AA,HH) Left image; (BB,II) Right image; (CC) BL stream; (DD) Broadcasting; (EE) EL stream; (FF) Internet; (GG) Request an enhancement layer

Abstract translation: 公开了一种用于混合三维（3D）内容服务的传输系统。 传输系统包括编码左图像和右图像的3D内容的SVC编码器和混合网络传输流模块，其通过无线电网络将由SVC编码器编码的可缩放比特流之间的基本层（BL）流传送到客户端系统 以及通过互联网向所述客户端系统发送增强层（EL）流。 （附图标记）（100）传输系统; （110）SVC编码器; （120）混合网络传输流模块; （200）客户系统; （210）混合网络接收模块; （220）自适应SVC解码器; （AA，HH）左图; （BB，II）右图; （CC）BL流; （DD）广播; （EE）EL流; （FF）互联网; （GG）请求增强层

公开(公告)号：KR1020130032842A

公开(公告)日：2013-04-02

申请号：KR1020120105347

申请日：2012-09-21

Applicant: 한국전자통신연구원 ,  연세대학교 원주산학협력단

Inventor： 유정주 ,  김창기 ,  김태정 ,  정영호 ,  홍진우 ,  서광덕 ,  이홍래

IPC: H04N7/24

CPC classification number: H04N21/6437 ,  H04N21/23602 ,  H04N21/2402 ,  H04N21/4305 ,  H04N21/4342

Abstract: PURPOSE: A media data transmitting device for an MMT system, a method thereof, a media data receiving device, and a method thereof are provided to supply timing information for temporal synchronization between media and play timing of the media in an MMT system-based media transmission service. CONSTITUTION: An encoder(310) generates a media stream by encoding media data. A buffer(320) stores the media stream. An encapsulating unit(330) generates encapsulation layer data by encapsulating the media stream. A packetizing unit(340) generates a delivery layer packet including timing information by packetizing the encapsulation layer data. A transmitting unit(350) transmits the delivery layer packet. [Reference numerals] (310) Encoder(Media Encoder); (320) Buffer(Buffer); (330) Encapsulating unit(Encapsulator); (340) Packetizing unit(Packetizer); (350) Transmitting unit; (AA) Media data;

Abstract translation: 目的：提供一种用于MMT系统的媒体数据发送装置，其方法，媒体数据接收装置及其方法，以在基于MMT系统的媒体中提供媒体和媒体播放定时之间的时间同步的定时信息 传输服务。 构成：编码器（310）通过对媒体数据进行编码来生成媒体流。 缓冲器（320）存储媒体流。 封装单元（330）通过封装媒体流来生成封装层数据。 分组单元（340）通过打包封装层数据来生成包括定时信息的传送层分组。 发送单元（350）发送发送层分组。 （编号）（310）编码器（媒体编码器） （320）缓冲区（缓冲区）; （330）封装单元（Encapsulator）; （340）打包单元（Packetizer）; （350）发射单元; （AA）媒体数据;

公开(公告)号：KR1020110071469A

公开(公告)日：2011-06-29

申请号：KR1020090128053

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 강정원 ,  신일홍 ,  유정주 ,  류원 ,  하정석 ,  강동협 ,  아주지카이스

IPC: H03M13/11

CPC classification number: H03M13/1111 ,  H03M13/1108 ,  H03M13/3707

Abstract: PURPOSE: A high speed decoding method for a low-density parity-check code is provided to obtain low error floor, by using BPSK(Binary Phase Shift Keying) modulation and additive white Gaussian noise channel environment. CONSTITUTION: An LDPC(Low Density Parity Check) code is decoded by LDPC decoding method using a message expressed as an LLR value. The message is converted into a bit stream corresponding to the LLR value. The LDPC code includes a variable node updating procedure using a bit stream. The variable node updating procedure includes a binary calculation procedure among input message values. The variable node updating procedure uses a threshold value.

Abstract translation: 目的：通过使用BPSK（二进制相移键控）调制和加性白高斯噪声信道环境，提供了一种用于低密度奇偶校验码的高速解码方法，以获得低误码大小。 构成：通过使用表示为LLR值的消息的LDPC解码方法对LDPC（低密度奇偶校验）码进行解码。 该消息被转换成与LLR值对应的比特流。 LDPC码包括使用比特流的可变节点更新过程。 变量节点更新过程包括输入消息值之间的二进制计算过程。 变量节点更新过程使用阈值。

公开(公告)号：KR1020110065159A

公开(公告)日：2011-06-15

申请号：KR1020090122032

申请日：2009-12-09

Applicant: 한국전자통신연구원

Inventor： 배성준 ,  강정원 ,  유정주 ,  류원

IPC: G06F17/00

CPC classification number: H04N21/23103 ,  H04N21/2225 ,  H04N21/234327 ,  H04N21/2665 ,  H04N21/4621 ,  H04N21/631

Abstract: PURPOSE: A system for providing multilayer contents by using multiple servers and a content service method thereof are provided to divide one content into a plurality of transmission groups having different kinds of quality by using multiple servers. CONSTITUTION: The contents are encoded by a hierarchical coding scheme. The contents are encoded to a hierarchical structure which is composed of a plurality of quality levels. The encoded contents are divided into a plurality of transmission groups. The plurality of transmission groups have the different quality levels.

Abstract translation: 目的：提供一种通过使用多个服务器提供多层内容的系统及其内容服务方法，通过使用多个服务器将一个内容分成具有不同质量品质的多个传输组。 构成：内容由分层编码方案编码。 内容被编码为由多个质量等级组成的分层结构。 编码内容被分成多个传输组。 多个传输组具有不同的质量级别。

公开(公告)号：KR1020110051104A

公开(公告)日：2011-05-17

申请号：KR1020090107775

申请日：2009-11-09

Applicant: 한국전자통신연구원

Inventor： 강정원 ,  배성준 ,  신일홍 ,  이경준 ,  유정주 ,  류원

IPC: H04N7/24

CPC classification number: H04N19/33 ,  H04N19/172 ,  H04N19/184 ,  H04N19/436

Abstract: PURPOSE: A method and system of encoding a visual space division type parallel video are provided to improve encoding speed. CONSTITUTION: A time and space partition unit(110) selects a method for dividing an input image based on constraint condition. The time and space partition unit transmits the input image to different encoding by dividing the input image according to the selected method. A encoding unit(120) generates a encoded bit stream by encoding the divided input image. An input image integration unit(130) integrates the encoding bit stream by receiving from the encoding units.

Abstract translation: 目的：提供一种编码视觉空间分割型并行视频的方法和系统，以提高编码速度。 构成：时空分区单元（110）基于约束条件选择分割输入图像的方法。 时间和空间分割单元根据所选择的方法通过划分输入图像将输入图像发送到不同的编码。 编码单元（120）通过对分割的输入图像进行编码来生成编码比特流。 输入图像合成单元（130）通过从编码单元接收来对编码比特流进行积分。

公开(公告)号：KR1020110049137A

公开(公告)日：2011-05-12

申请号：KR1020090106000

申请日：2009-11-04

Applicant: 한국전자통신연구원

Inventor： 신일홍 ,  유정주 ,  류원

IPC: H04N7/24

CPC classification number: H04N19/187 ,  H04N19/184 ,  H04N19/436

Abstract: PURPOSE: A parallel processing scalable video encoding/decoding method is provided to encode/decode a target image in a plurality of encoding/decoding unit in parallel. CONSTITUTION: A video splitter(110) participates an original image by an IDR(Instantaneous Decoder Refresh) cycle. The video splitter inputs each original image to different encoding units during the IDR cycle. A plurality of encoding units(120) generate bit stream by encoding the original image during the IDR cycle. A bit stream compositor(130) successively stores the bit stream of the encoders.

Abstract translation: 目的：提供并行处理可分级视频编码/解码方法，并行地对多个编码/解码单元中的目标图像进行编码/解码。 构成：视频分离器（110）通过IDR（瞬时解码器刷新）周期参与原始图像。 视频分配器在IDR周期期间将每个原始图像输入到不同的编码单元。 多个编码单元（120）通过在IDR周期期间对原始图像进行编码来生成比特流。 比特流合成器（130）连续地存储编码器的比特流。

公开(公告)号：KR1020110031721A

公开(公告)日：2011-03-29

申请号：KR1020090089085

申请日：2009-09-21

Applicant: 한국전자통신연구원

Inventor： 신일홍 ,  유정주 ,  임종수 ,  류원

IPC: H04N7/24

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/33 ,  H04N19/46 ,  H04N19/523 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

Abstract: PURPOSE: A scalable video coding/decoding method and an apparatus thereof are provided to increase the image quality of a base layer without using anti-aliasing filtering without increasing the amount of calculation. CONSTITUTION: An entropy decoding unit(120) encodes an image which is received from a encoding unit. A de-blocking filter(160) reduces the block distortion of the decoded image. A motion compensation unit(170) applies the motion compensation of the image which passes through the de-blocking filter. A half-pel filter(180) applies half-pel compensation to the image to which the motion compensation is applied.

Abstract translation: 目的：提供可扩展的视频编码/解码方法及其装置，以在不增加计算量的情况下，不使用抗混叠滤波来增加基本层的图像质量。 构成：熵解码单元（120）编码从编码单元接收的图像。 解块滤波器（160）减少解码图像的块失真。 运动补偿单元（170）应用通过解块滤波器的图像的运动补偿。 半像素滤波器（180）对应用运动补偿的图像应用半像素补偿。

公开(公告)号：KR100986555B1

公开(公告)日：2010-10-07

申请号：KR1020080034323

申请日：2008-04-14

Applicant: 한국전자통신연구원

Inventor： 정순흥 ,  유정주 ,  홍진우 ,  서광덕

IPC: H04L12/861 ,  H04N21/43

Abstract: 본 발명은 프로그레시브 멀티미디어 스트리밍 서비스를 위한 초기 버퍼링 시간 결정 방법 및 그 시스템에 관한 것으로, 프로그레시브 스트리밍 서비스(Progressive streaming service)를 위한 패킷을 수신하고, 수신된 패킷이 버퍼에서 버퍼링되는 시간 값에 기초하여, 버퍼에서의 패킷 고갈이 발생할 확률을 계산하고, 계산된 패킷 고갈이 발생할 확률이 기 선정된 값보다 큰 경우, 연속 패킷 손실 시간 값 및 왕복 전송 시간 값을 이용하여 버퍼의 패킷 고갈을 방지할 수 있는 버퍼링 시간을 산출한다.
프로그레시브 멀티미디어 스트리밍, 패킷, 버퍼링

公开(公告)号：KR1020100058201A

公开(公告)日：2010-06-03

申请号：KR1020080116931

申请日：2008-11-24

Applicant: 한국전자통신연구원

Inventor： 신일홍 ,  강정원 ,  유정주 ,  홍진우

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/51

CPC classification number: H04N19/573 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/61

Abstract: PURPOSE: An encoding/decoding device of a video signal and a method thereof are provided to remove the need to transmit a motion vector by presuming movement with use of a template. CONSTITUTION: A template motion estimator(170) presumes movement between an input image and a reference image with use of a template. An adaptive motion compensator(180) generates a predicted image with motion estimation information and the reference image. The adaptive motion compensator calculates a filter coefficient with use of the template in the predicted image. The adaptive motion compensator filters the predicted image with the filter coefficient.

Abstract translation: 目的：提供视频信号的编码/解码装置及其方法，以通过假定使用模板的移动来消除传输运动矢量的需要。 构成：模板运动估计器（170）假设使用模板在输入图像和参考图像之间移动。 自适应运动补偿器（180）生成具有运动估计信息和参考图像的预测图像。 自适应运动补偿器使用预测图像中的模板来计算滤波器系数。 自适应运动补偿器用滤波器系数对预测图像进行滤波。

公开(公告)号：KR1020100018956A

公开(公告)日：2010-02-18

申请号：KR1020080077726

申请日：2008-08-08

Applicant: 한국전자통신연구원

Inventor： 신일홍 ,  강정원 ,  최해철 ,  유정주 ,  홍진우

IPC: H04N19/51

CPC classification number: H04N19/51 ,  H04N19/139 ,  H04N19/159

Abstract: PURPOSE: A method for decoding distribution video using motion-compensated image is provided to enhance compression efficiency using MCIF(Motion Compensated Interpolation Frame). CONSTITUTION: An intra-decoding unit(150) decodes key frame from received bitstream. A motion compensating unit(160) generates MCIF(Motion Compensated Interpolation Frame) using previous key frame block and key frame block. The average of pixel concentration is calculated based on current key frame block and forward direction movement vector information. A Slepian-wolf decoding unit(140) finally decodes Wyner-ziv frame using the MCIF.

Abstract translation: 目的：提供使用运动补偿图像解码分配视频的方法，以提高使用MCIF（运动补偿插值帧）的压缩效率。 构成：内部解码单元（150）从接收的比特流解码关键帧。 运动补偿单元（160）使用先前的关键帧块和关键帧块产生MCIF（运动补偿插补帧）。 基于当前关键帧块和向前移动向量信息计算像素浓度的平均值。 Slepian-Wolf解码单元（140）最终使用MCIF解码Wyner-ziv帧。