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    • 2. 发明公开
    • 씨씨티브 카메라의 패닝, 틸팅, 주밍 변환에 따른검지영역 자동설정 시스템
    • 自动设置中央电视台检测区域的系统
    • KR1020020015637A
    • 2002-02-28
    • KR1020010029448
    • 2001-05-28
    • 주식회사 비츠로시스이인정민준영최종욱한국도로공사
    • 장태수윤병주김형진박성균남궁성민준영이인정최종욱
    • H04N7/18
    • PURPOSE: A detection area set-up system of a CCTV(Closed Circuit Television) is provided to enhance the accuracy of traffic information by automatically collecting traffic information using the panning, tilting, and zooming functions of a CCTV. CONSTITUTION: A detection area set-up system(100) of a CCTV comprises a CCTV camera(110), a video input unit(120), an element value calculating unit(130), a communication unit(140), a coordinate converting unit(150), a correcting unit(160), and a preset unit(170). The CCTV camera is installed on a road to photograph the road. The video input unit compresses the images inputted via the CCTV and transfers the compressed image to a traffic center. The element value calculating unit consists of an A/D(Analog to Digital) converter, a CPU(Central Processing Unit), a pan/tilt driver, a zoom driver, a communication driver, and a power driver. The element value calculating unit calculates the panning value, tilting value, and zooming value of the CCTV camera when panning, tilting, and zooming are performed. The communication unit transfers the element values and images to the traffic center by multiplexing a video link and a data link. The coordinate converting unit calculates a coordinate conversion on a three-dimensional space by a coordinate converting algorithm. The correcting unit installed in the traffic center automatically sets up a detection area by considering a mechanical error and corrects the detection area. Therefore, accurate traffic condition is obtained.
    • 目的:提供CCTV(闭路电视)的检测区域设置系统,通过使用CCTV的平移,倾斜和缩放功能自动收集交通信息,提高交通信息的准确性。 构成:CCTV的检测区域设置系统(100)包括CCTV摄像机(110),视频输入单元(120),元素值计算单元(130),通信单元(140),坐标转换 单元(150),校正单元(160)和预设单元(170)。 CCTV摄像机安装在道路上拍摄道路。 视频输入单元压缩通过CCTV输入的图像,并将压缩图像传送到交通中心。 元件值计算单元由A / D(模拟到数字)转换器,CPU(中央处理单元),云台驱动器,变焦驱动器,通信驱动器和功率驱动器组成。 元素值计算单元在执行平移,倾斜和缩放时计算CCTV摄像机的平移值,倾斜值和变焦值。 通信单元通过复用视频链路和数据链路将元素值和图像传送到交通中心。 坐标转换单元通过坐标变换算法计算三维空间的坐标变换。 安装在交通中心的校正单元通过考虑机械误差自动设置检测区域,校正检测区域。 因此,获得准确的交通状况。
    • 3. 发明公开
    • 웨이블렛을 이용한 교차로에서의 차량 대기길이 측정 방법
    • 通过使用小波变换来测量车辆队列长度的方法
    • KR1020010092978A
    • 2001-10-27
    • KR1020000015754
    • 2000-03-28
    • 주식회사 비츠로시스
    • 장태수윤병주김형진민준영최종욱
    • G08G1/04
    • PURPOSE: A method for measuring a vehicle queue length at an intersection by using wavelet transforms is provided to increase the measuring accuracy of the vehicle queue length by filtering noise due to the changes of weather and luminous intensity. CONSTITUTION: A process detects a vehicle on a frame basis by performing wavelet transforms on N detection regions of an image inputted from an image detector. If a vehicle is detected, the process displays on sign. If not, the process displays off sign. The process measures a standing queue length of vehicles. In case that the vehicles are detected in 7 frames among 10 frames being measured, the process determines that the vehicles is standing on a road. The process sets the detected region to the standing queue length.
    • 目的:提供一种利用小波变换测量交叉点车辆队列长度的方法,通过天气和发光强度的变化对噪声进行滤波,提高车辆队列长度的测量精度。 构成:通过对从图像检测器输入的图像的N个检测区域进行小波变换,过程基于帧检测车辆。 如果检测到车辆,则过程显示在标志上。 如果没有,过程将显示关闭符号。 该过程测量车辆的排队长度。 在被测量的10帧之中检测到7帧的车辆的情况下,该过程确定车辆站在道路上。 该过程将检测到的区域设置为站立队列长度。