公开(公告)号：KR100399047B1

公开(公告)日：2003-09-26

申请号：KR1020000072276

申请日：2000-12-01

Applicant: 한국전자통신연구원

Inventor： 엄기문 ,  조성배 ,  허남호 ,  김형남

IPC: H04N13/02

CPC classification number: H04N2013/0081

Abstract: PURPOSE: A device for controlling vergence of a stereo camera is provided to interwork vergence control according to zoom lens operations of the stereo camera, and to perform a more exact vergence control by parallax found through a signal processing, thereby enabling a more exact vergence control in the stereo camera. CONSTITUTION: A focus controller(140) operates lens operators(121) to equalize images photographed by at least two cameras, and performs a focus control. A zoom and vergence controller(130) finds a distance between central points of the two cameras where parallax becomes zero according to positions of lenses(111) and a subject, when the focus control is performed. A camera driver(120) controls a distance between centers of the two cameras according to the distance between the central points of the two cameras, and performs a vergence control. A signal processor transmits a control signal vergence information to the camera driver according to a vergence angle, which is obtained by calculating the parallax by using video data obtained when the vergence control is performed, and carries out a 2-step vergence control.

Abstract translation: 目的：提供一种用于控制立体相机的聚散度的设备，以根据立体相机的变焦镜头操作来进行聚散度控制，并且通过信号处理所发现的视差来执行更精确的聚散度控制，从而能够实现更精确的聚散度控制 在立体相机中。 构成：聚焦控制器（140）操作镜头操作器（121）以均衡由至少两个照相机拍摄的图像，并执行聚焦控制。 当执行聚焦控制时，变焦和聚散度控制器（130）根据透镜（111）和被摄体的位置找出视差变为零的两个相机的中心点之间的距离。 相机驱动器（120）根据两个相机的中心点之间的距离来控制两个相机的中心之间的距离，并执行聚散度控制。 信号处理器根据通过使用当执行聚散度控制时获得的视频数据计算视差而获得的聚散角并且执行2步聚散度控制，将控制信号聚集度信息发送到相机驱动器。

公开(公告)号：KR100378594B1

公开(公告)日：2003-03-31

申请号：KR1020000044406

申请日：2000-07-31

Applicant: 한국전자통신연구원

Inventor： 엄기문 ,  조성배 ,  허남호

IPC: G03B13/00

Abstract: PURPOSE: Device and method for automatically controlling a camera focus by wavelet transformation are provided to prevent noise by using a high pass filtering element of wavelet transformation and to simply calculate sum of high pass elements. CONSTITUTION: A device for automatically controlling a camera focus by wavelet transformation comprises a camera unit(1) controlling a camera focus; a frequency changing unit(2) dividing frequency element by transforming the wavelet; a focus control unit(3) detecting focus driving voltage by focus control information; a manual controlling unit(31) generating the focus driving voltage while controlling a focus knob; a manual/automatic changing switch(32) outputting the focus driving voltage into a lens driving unit(13); an A/D(Analogue/Digital) converter(33) supplying an analogue signal into a control processor(35) by changing into a digital signal; a D/A converter(34) supplying focus control information into the manual/automatic changing switch by changing as the focus driving voltage; a beat switch(36) establishing collecting range by being connected to the control processor; and an adding device(37).

Abstract translation: 目的：提供通过小波变换自动控制相机焦点的装置和方法，以通过使用小波变换的高通滤波元件来防止噪声并且简单地计算高通元素的总和。 一种用于通过小波变换自动控制相机焦点的设备，包括：控制相机焦点的相机单元（1） 频率改变单元（2），通过变换小波来划分频率元素; 通过聚焦控制信息检测聚焦驱动电压的聚焦控制单元（3） 手动控制单元（31），其在控制聚焦旋钮的同时产生聚焦驱动电压; 手动/自动切换开关（32），用于将所述聚焦驱动电压输出到镜头驱动单元（13）中; A / D（模拟/数字）转换器（33），通过转换成数字信号将模拟信号提供给控制处理器（35）; D / A转换器（34），通过改变聚焦驱动电压，将聚焦控制信息提供给手动/自动转换开关; 节拍开关（36），通过连接到控制处理器来建立收集范围; 和添加装置（37）。

公开(公告)号：KR1020020010846A

公开(公告)日：2002-02-06

申请号：KR1020000044406

申请日：2000-07-31

Applicant: 한국전자통신연구원

Inventor： 엄기문 ,  조성배 ,  허남호

IPC: G03B13/00

CPC classification number: G03B13/36 ,  G02B7/102 ,  G02B7/28 ,  H04N5/23212

Abstract: PURPOSE: Device and method for automatically controlling a camera focus by wavelet transformation are provided to prevent noise by using a high pass filtering element of wavelet transformation and to simply calculate sum of high pass elements. CONSTITUTION: A device for automatically controlling a camera focus by wavelet transformation comprises a camera unit(1) controlling a camera focus; a frequency changing unit(2) dividing frequency element by transforming the wavelet; a focus control unit(3) detecting focus driving voltage by focus control information; a manual controlling unit(31) generating the focus driving voltage while controlling a focus knob; a manual/automatic changing switch(32) outputting the focus driving voltage into a lens driving unit(13); an A/D(Analogue/Digital) converter(33) supplying an analogue signal into a control processor(35) by changing into a digital signal; a D/A converter(34) supplying focus control information into the manual/automatic changing switch by changing as the focus driving voltage; a beat switch(36) establishing collecting range by being connected to the control processor; and an adding device(37).

Abstract translation: 目的：提供通过小波变换自动控制摄像机焦点的装置和方法，以通过使用小波变换的高通滤波元件来简单计算高通元素的总和来防止噪声。 构成：用于通过小波变换自动控制摄像机焦点的装置包括控制摄像机焦点的照相机单元（1） 变频单元（2），通过变换小波来分频频率单元; 聚焦控制单元，通过焦点控制信息检测聚焦驱动电压; 手动控制单元（31），同时控制聚焦旋钮; 将聚焦驱动电压输出到透镜驱动单元（13）中的手动/自动切换开关（32）; 通过改变为数字信号将模拟信号提供给控制处理器（35）的A / D（模拟/数字）转换器（33） D / A转换器（34）通过改变作为聚焦驱动电压而将焦点控制信息提供到手动/自动切换开关中; 节拍开关（36）通过连接到所述控制处理器来建立收集范围; 和加法装置（37）。

公开(公告)号：KR100299661B1

公开(公告)日：2001-09-03

申请号：KR1019970069521

申请日：1997-12-17

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 조성배 ,  이수인 ,  오덕길

IPC: H03M1/06

Abstract: PURPOSE: A method and an apparatus for evaluating a DC offset in a digital quadrature demodulator are provided to improve capacity of a demodulator by removing a direct current component. CONSTITUTION: A hard limiter(91) is used for limiting an amplitude of an output signal of an A/D converter(40). A filter(+Mean)(92) is used for receiving only positive signals of A/D output signals and calculating a mean value for absolute values of the positive signals. A filter(-Mean)(93) is used for receiving only negative signals of the A/D output signals and calculating a mean value for absolute values of the negative signals. An adder adds an output of the filter(+Mean)(92) to an output of the filter(-Mean)(93). A loop filter(95) is used for filtering an output of the adder and outputting an offset control signal to the A/D converter(40).

公开(公告)号：KR1020020054253A

公开(公告)日：2002-07-06

申请号：KR1020000083384

申请日：2000-12-27

Applicant: 한국전자통신연구원

Inventor： 엄기문 ,  조성배 ,  김형남 ,  허남호 ,  이진환 ,  조숙희 ,  유웅식 ,  조진호

IPC: H04N13/00

Abstract: PURPOSE: A device for processing a digital stereo image is provided to perform a decimation filtering and an interpolation filtering for a digital stereo image, to reduce information lost, and to transmit/restore a stereo image in an existing digital video processing device, thereby obtaining a high-quality stereo image. CONSTITUTION: A decimation filter(210) decimation-filters left/right images pictured from video cameras(200, 201). A multiplexer(220) multiplexes the decimation-filtered images. A recorder/transmitter(230) records or transmits the multiplexed image signals. An image separator(240) reproduces, receives, and decodes data recorded or transmitted from the recorder/transmitter, and separates the left image from the right image. An interpolation filter(250) interpolation-filters the separated images to restore to original size. An image display(260) displays the restored images.

Abstract translation: 目的：提供一种用于处理数字立体声图像的装置，用于对数字立体声图像执行抽取滤波和内插滤波，以减少信息丢失，并在现有数字视频处理装置中发送/恢复立体声图像，从而获得 高质量立体图像。 构成：抽取滤波器（210）对来自摄像机（200,201）的左/右图像进行抽取滤波。 多路复用器（220）复用经抽取滤波的图像。 记录器/发送器（230）记录或发送多路复用的图像信号。 图像分离器（240）再现，接收和解码从记录器/发送器记录或发送的数据，并将左图像与右图像分离。 内插滤波器（250）内插 - 对分离的图像进行滤波以恢复为原始大小。 图像显示（260）显示恢复的图像。

公开(公告)号：KR1020040005252A

公开(公告)日：2004-01-16

申请号：KR1020020039740

申请日：2002-07-09

Applicant: 한국전자통신연구원

Inventor： 이광순 ,  허남호 ,  안충현 ,  안치득 ,  조성배

IPC: H04N13/00

Abstract: PURPOSE: A vergence control system and method according to over sampling and variable addressing and a parallel-axis stereo camera are provided to process input video signals in real time with a simple hardware construction and reduce information loss. CONSTITUTION: A vergence control system(310) includes an analog/digital converter(311), a memory(312), a variable address generator(313), a vertical processor(314) and a vertical interpolator(315). The analog/digital converter performs horizontal over sampling of an image photographed by an external camera. The memory stores the over-sampled image. The variable address generator outputs a vergence-controlled image from the images stored in the memory. The vertical processor receives the vergence-controlled image from the memory to process the image in the vertical direction. The vertical interpolator accepts the vertically processed image and interpolates the image to the size of the photographed image.

Abstract translation: 目的：提供一种根据过采样和变址寻址的并行控制系统和方法，并提供并行立体相机，以简单的硬件结构实时处理输入视频信号，减少信息丢失。 构成：聚束控制系统（310）包括模拟/数字转换器（311），存储器（312），可变地址发生器（313），垂直处理器（314）和垂直内插器（315）。 模拟/数字转换器对由外部摄像机拍摄的图像进行水平过采样。 存储器存储过采样图像。 可变地址生成器从存储在存储器中的图像输出一个聚集控制的图像。 垂直处理器从存储器接收屏蔽图像以在垂直方向处理图像。 垂直内插器接受垂直处理的图像，并将图像内插到拍摄图像的大小。

公开(公告)号：KR1020020042917A

公开(公告)日：2002-06-08

申请号：KR1020000072276

申请日：2000-12-01

Applicant: 한국전자통신연구원

Inventor： 엄기문 ,  조성배 ,  허남호 ,  김형남

IPC: H04N13/02

CPC classification number: H04N2013/0081

Abstract: PURPOSE: A device for controlling vergence of a stereo camera is provided to interwork vergence control according to zoom lens operations of the stereo camera, and to perform a more exact vergence control by parallax found through a signal processing, thereby enabling a more exact vergence control in the stereo camera. CONSTITUTION: A focus controller(140) operates lens operators(121) to equalize images photographed by at least two cameras, and performs a focus control. A zoom and vergence controller(130) finds a distance between central points of the two cameras where parallax becomes zero according to positions of lenses(111) and a subject, when the focus control is performed. A camera driver(120) controls a distance between centers of the two cameras according to the distance between the central points of the two cameras, and performs a vergence control. A signal processor transmits a control signal vergence information to the camera driver according to a vergence angle, which is obtained by calculating the parallax by using video data obtained when the vergence control is performed, and carries out a 2-step vergence control.

Abstract translation: 目的：根据立体摄像机的变焦镜头操作，提供用于控制立体摄像机聚光的装置，以便通过信号处理发现的视差来执行更精确的聚焦控制，从而实现更准确的聚集控制 在立体相机中。 构成：聚焦控制器（140）操作透镜操作器（121）以均衡由至少两个照相机拍摄的图像，并且执行聚焦控制。 当执行聚焦控制时，变焦和聚光控制器（130）根据透镜（111）和被摄体的位置，找到两个摄像机的中心点之间的距离，其中视差变为零。 相机驱动器（120）根据两个照相机的中心点之间的距离来控制两个照相机的中心之间的距离，并进行聚光控制。 信号处理器根据通过使用执行聚合控制时获得的视频数据计算视差获得的聚合角度，向照相机驱动器发送控制信号聚合信息，并执行2步聚合控制。

公开(公告)号：KR1019990050402A

公开(公告)日：1999-07-05

申请号：KR1019970069521

申请日：1997-12-17

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 조성배 ,  이수인 ,  오덕길

IPC: H03M1/06

Abstract: 본 발명은 디지털 직교 복조기에서 A/D변환 및 직교 하향 변환의 불완전성에 의해 발생하는 DC성분을 제거하기 위한 DC 오프셋 평가기와 DC 오프셋 평가방법에 관한 것이다. 디지털 직교 복조기는 반송파 복원 회로를 이용하여 수신 신호를 I채널과 Q채널 신호로 구성되는 직교 기저 대역 신호로 변환한 후, A/D변환 과정을 수행한다. 이 때 A/D변환된 직교 기저 대역 신호는 A/D 변환 및 직교 하향 변환의 불완전성과 다중 경로 채널 환경에서 반송파 복원 회로의 오프셋 위상 오차때문에 DC 오프셋이 발생하며 이 DC 오프셋성분은 복조기의 성능을 저하시킨다. 이 문제는 먼저 DC 오프셋성분을 구하고, 이 값을 이용하여 A/D 변환기의 오프셋 Adjust 입력을 조절함으로써 해결할 수 있게 한다.

公开(公告)号：KR1019980039910A

公开(公告)日：1998-08-17

申请号：KR1019960059028

申请日：1996-11-28

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 조성배 ,  조진호 ,  오덕길

IPC: H03K3/00

Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
이중화된 시스템에서의 클럭 공급장치.
2. 발명이 해결하려고 하는 기술적 과제
이중화된 시스템에서 운용모드로 동작하는 클럭공급장치가 포함된 보드에 장애가 발생하더라도, 클럭의 동기를 일치시키고자 함.
3. 발명의 해결방법의 요지
클럭공급장치는 위상고정루프와 전압제어 발진기를 포함하여 운용보드의 클럭공급장치에 공급되는 클럭을 예비보드의 클럭공급장치가 입력받아 운용보드와 예비보드의 클럭공급장치에서 발생되는 클럭의 위상을 일치시키고, 운용보드의 장애시 예비보드로 절체하여 운용보드에서 제공되는 클럭과 동일한 위상과 주파수를 갖는 클럭이 지속적으로 공급되도록 함.
4. 발명의 중요한 용도
이중화된 시스템에 이용됨.