公开(公告)号：KR100481732B1

公开(公告)日：2005-04-11

申请号：KR1020020021757

申请日：2002-04-20

Applicant: 전자부품연구원

Inventor： 손광훈 ,  임정은 ,  최병호 ,  김제우 ,  정혁구

IPC: H04N19/597 ,  H04N13/00

CPC classification number: H04N19/577 ,  H04N19/523 ,  H04N19/597 ,  H04N19/80

Abstract: 본 발명은 다 시점 동영상 부호화 장치에 관한 것으로, 다 시점 동영상 소스 데이터가 입력되면, 노이즈 제거, 임발란싱(imbalancing) 문제를 해결하면서 데이터간의 상관도를 높여 신뢰도를 증가시키는 전처리부; 다시점 동영상 데이터내의 변이 벡터 및 움직임 벡터를 추정하기 위하여 MPEG-2 구조를 시점축으로 확장하여 공간적/시간적 상관도를 이용하여 추정하는 변이 추정부 및 움직임 추정부; 변이 추정부 및 움직임 추정부에 의해 추정된 복원 영상을 반화소 보상 방법을 이용하여 보상하는 변이/움직임 보상부; 전처리부로부터 제공된 원 영상과 변이/움직임 보상부에 의해 보상된 복원 영상의 차 정보를 보다 나은 영상 화질과 입체감을 제공하기 위하여 부호화를 수행하는 차영상 부호화부; 차영상 부호화부에 의해 부호화된 복원 영상에 대하여 비트율에 따라 각 프레임에 효율적인 비트량을 할당하기 위한 비트율을 제어하는 비트율 제어부; 비트율 제어부에 의해 제어된 비트율에 따라 다 시점 동영상 소스 데이터에 대한 비트 스트림을 생성하는 엔트로피 부호화부를 구비한다. 따라서, 관찰자에게 사실감과 현장감을 제공할 수 있으며, 또한 MPEG-2 표준과의 호환성을 이룸으로 비디오 시장 진출이 매우 용이하며, 멀티미디어 정보를 다루는 3차원 단말기 기술과 결합하여 방송, 가전/통신, 교육/정보/훈련, 오락, 방위, 반도체, 컴퓨터/인터넷 상거래, 의료/생명, 우주항공, 영상, 문화, 건축 등의 거의 모든 산업 및 과학기술 분야에 적용 가능하며, 특히 시청, 감시, 표시, 진단 및 측정 도구로서 적용할 수 있다는 효과가 있다.

公开(公告)号：KR1020050011222A

公开(公告)日：2005-01-29

申请号：KR1020030050228

申请日：2003-07-22

Applicant: 전자부품연구원

Inventor： 전원기 ,  김동순 ,  송혁 ,  정혁구 ,  백종호 ,  민경원 ,  이경택 ,  김용환 ,  권기원

IPC: H04B1/16

Abstract: PURPOSE: A receiver for digital audio broadcasting controllable on an information processing apparatus and a method for controlling the same are provided to control digital audio broadcasting and process data on an information processing apparatus having an operating system, to realize an economical receiver for digital audio broadcasting, and to easily debug all commercial chip sets on software. CONSTITUTION: An RF(Radio Frequency) terminal(109) receives a digital broadcasting signal and converts the received digital broadcasting signal into an analog signal, and executes a series of preprocessing. A digital audio broadcasting baseband terminal(111) receives the data processed at the RF terminal(109) to sample and decode the processed data. An RF processing unit(201) controls the RF terminal(109) by a series of commands processed on software of a host which is an information processing apparatus, and processes the RF terminal(109) to communicate with the host. A baseband processing unit(203) controls the baseband terminal(111) by a series of commands processed on software of a host which is the information processing apparatus, and divides the decoded data into multimedia data and service data, and stores the divided data. A data storing unit(205) temporarily stores the data processed at the baseband terminal(111) and the data processed at the host. An interface part(207) interfaces the host and a receiver. A control unit(215) controls the RF terminal(109), the baseband terminal(111), and other terminals.

Abstract translation: 目的：提供一种可在信息处理设备上控制的数字音频广播的接收机及其控制方法，以便在具有操作系统的信息处理设备上控制数字音频广播和处理数据，以实现经济的数字音频广播接收机 ，并轻松调试所有商业芯片组的软件。 构成：RF（射频）终端（109）接收数字广播信号并将接收的数字广播信号转换为模拟信号，并执行一系列预处理。 数字音频广播基带终端（111）接收在RF终端（109）处理的数据，对经处理的数据进行采样和解码。 RF处理单元（201）通过在作为信息处理设备的主机的软件上处理的一系列命令来控制RF终端（109），并处理RF终端（109）与主机通信。 基带处理单元（203）通过在作为信息处理装置的主机的软件处理的一系列命令来控制基带终端（111），并将解码的数据分割为多媒体数据和服务数据，并存储分割的数据。 数据存储单元（205）临时存储在基带终端（111）处理的数据和在主机处理的数据。 接口部分（207）将主机和接收器接口连接。 控制单元（215）控制RF终端（109），基带终端（111）和其他终端。

公开(公告)号：KR1020030037140A

公开(公告)日：2003-05-12

申请号：KR1020010068247

申请日：2001-11-02

Applicant: 전자부품연구원

Inventor： 김제우 ,  정혁구 ,  최병호 ,  송혁 ,  백종호

IPC: H04N13/00

Abstract: PURPOSE: A multiview video communication system for three-dimensional images including a search function is provided to allow a user to view three-dimensional stereo images displayed on a three-dimensional display at various angles and distances. CONSTITUTION: A transmitter includes an image acquisition unit for capturing two-dimensional images from cameras, a multiview image pre-processor(100) for correcting parameters caused by a difference between characteristics of the cameras, an image compressor(200) for removing temporal and spatial redundancy among the images output from the cameras, an image search system(300) for extracting meta data from the two-dimensional images captured by the image acquisition unit, and a multiplexer(400) for multiplexing each video stream compressed by the image compressor and the meta data into one stream. A receiver includes an image demultiplexer(500) for demultiplexing the multiplexed video stream into the meta data and video streams and regenerating multiplexed streams including no meta data, a multimedia storage and search system for temporarily storing the meta data and the multiplexed video streams including no meta data and searching the video streams using the meta data, an image restoring unit(600) for decompressing the compressed images of the multiplexed video streams to restore the images, an intermediate image generator(700) for generating an intermediate image among the stored images, and a 3D display controller(800) for outputting the tow-dimensional images on a three-dimensional display.

Abstract translation: 目的：提供用于包括搜索功能的三维图像的多视角视频通信系统，以允许用户以各种角度和距离来观看显示在三维显示器上的三维立体图像。 构成：发射机包括用于从相机捕获二维图像的图像获取单元，用于校正由相机的特性之间的差异引起的参数的多视图图像预处理器（100），用于去除时间的图像压缩器（200） 从相机输出的图像之间的空间冗余，用于从由图像获取单元捕获的二维图像提取元数据的图像搜索系统（300），以及用于复用由图像压缩器压缩的每个视频流的多路复用器（400） 并将元数据转换为一个流。 接收机包括图像解复用器（500），用于将多路复用的视频流解复用为元数据和视频流，并重新生成不包含元数据的多路复用流，用于临时存储元数据的多媒体存储和搜索系统以及包括无 元数据并使用元数据搜索视频流;图像恢复单元，用于解压缩多路复用视频流的压缩图像以恢复图像;中间图像生成器，用于在所存储的图像中生成中间图像; ，以及用于在三维显示器上输出拖曳图像的3D显示控制器（800）。

公开(公告)号：KR1020030006641A

公开(公告)日：2003-01-23

申请号：KR1020010042486

申请日：2001-07-13

Applicant: 전자부품연구원

Inventor： 김제우 ,  정혁구 ,  최병호 ,  백종호 ,  송혁 ,  백준기 ,  황인경

IPC: H04N7/24

CPC classification number: H04N19/60 ,  H04N19/124 ,  H04N19/184 ,  H04N19/51 ,  H04N19/91

Abstract: PURPOSE: A transcoder and a method for transcoding thereof are provided to prevent deterioration of picture quality although video frames are consecutively transcoded. CONSTITUTION: A transcoder includes a VLD(Variable Length Decoder)(111) receiving R1 bit rate video bit stream for entropy decoding, thereby outputting a quantized DCT(Discrete Cosine Transform) coefficient and parameters for motion compensation; a first inverse quantizing part(112) receiving the quantized DCT coefficient for executing an inverse quantization using a quantizing table, and outputting a DCT coefficient including a quantizing error; a first MCD(Motion Compensation Decision)(114) generating a compensation image at a DCT area by executing motion compensation and half pixel motion compensation for the current image at the DCT area by using the motion vector of the VLD and a reference image; an adder(113) generating a restored image at the DCT area by adding the DCT coefficient including the quantizing error and the compensation image; a decoder(110) including a frame memory(115) receiving the restored image to be stored as the reference image to be provided to the first MCD; and an encoder(120) receiving the restored image of the decoder for generating image bit stream having R2 bit rate video bit stream.

Abstract translation: 目的：提供代码转换器及其代码转换方法，以防止图像质量的劣化，尽管视频帧被连续转码。 构成：代码转换器包括接收用于熵解码的R1比特率视频比特流的VLD（可变长度解码器）（111），从而输出用于运动补偿的量化DCT（离散余弦变换）系数和参数; 接收用于使用量化表执行逆量化的量化DCT系数并输出包括量化误差的DCT系数的第一逆量化部分（112） 第一MCD（运动补偿判定）（114），通过使用VLD的运动矢量和参考图像对DCT区域执行运动补偿和当前图像的半像素运动补偿，在DCT区域产生补偿图像; 加法器（113），通过将包括量化误差和补偿图像的DCT系数相加，在DCT区域生成恢复图像; 解码器（110），包括接收要存储的恢复图像作为要提供给第一MCD的参考图像的帧存储器（115）; 以及编码器（120），接收用于产生具有R2比特率视频比特流的图像比特流的解码器的恢复图像。

公开(公告)号：KR1020020036371A

公开(公告)日：2002-05-16

申请号：KR1020000066528

申请日：2000-11-09

Applicant: 전자부품연구원

Inventor： 최병호 ,  정혁구 ,  김제우

IPC: H04N13/00

CPC classification number: G02B27/2214

Abstract: PURPOSE: A three-dimensional messaging device is provided to convert a message inputted through a user interface into a three-dimensional text, and to display the three-dimensional text, so as to transmit the message to other people with the three-dimensional text. CONSTITUTION: A message input unit(201) inputs data of a message to be displayed and a predetermined parameter. A user interface(202) converts the inputted data and the parameter into a system control signal and data. An image generator(203) converts the data inputted from the user interface(202) into multi-point text data of a three-dimensional image. An image synthesizer(204) overlaps the multi-point text data with an input image background to be displayed, and generates single three-dimensional image data. A display controller(205) inputs the single three-dimensional image data, and controls the data to be output to a display.

Abstract translation: 目的：提供一种三维消息传送设备，用于将通过用户界面输入的消息转换为三维文本，并显示三维文本，以便将消息传送给具有三维文本的其他人 。 构成：消息输入单元（201）输入要显示的消息的数据和预定参数。 用户接口（202）将输入的数据和参数转换为系统控制信号和数据。 图像生成器（203）将从用户界面（202）输入的数据转换为三维图像的多点文本数据。 图像合成器（204）将多点文本数据与要显示的输入图像背景重叠，并且生成单个三维图像数据。 显示控制器（205）输入单个三维图像数据，并将要输出的数据控制到显示器。