• Title/Summary/Keyword: Multi-Camera System

Search Result 473, Processing Time 0.029 seconds

Remote Monitoring and Motor Control Based on Multi-Platform (다중플랫폼 기반 영상감시 및 원격지 모터제어시스템 구현)

  • Choi, Seung-Dal;Jang, Gun-Ho;Kim, Seok-Min;Nam, Boo-Hee
    • Proceedings of the KIEE Conference
    • /
    • 2004.11c
    • /
    • pp.200-202
    • /
    • 2004
  • This paper deals with the real-time monitoring and control system using PC, PDA(Win CE embedded device) and PCS(based BREW platform). The camera attached to the server captures the moving target, and the captured frame of color image is encoded in JPEG for image compression at the server. The client(PC, PDA, PCS) receives the image data from the remote server and the received image is decoded from decompression. We use the TCP/IP protocol to send the image frames. The client can control the position of the camera by sending the control command to the server. Two DC servo motors for the camera are controlled in any directions, up-down and left-right, by the controller which is communicating with the server via the serial communication to get the control command. In this way, on the client we can monitor the moving images at the server and also control the position of the camera.

  • PDF

Three-Dimensional Measurement of Moving Surface Using Circular Dynamic Stereo

  • Lee, Man-Hyung;Hong, Suh-Il
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2001.10a
    • /
    • pp.101.3-101
    • /
    • 2001
  • By setting a refractor with a certain angle against the optical axis of the CCD camera lens, the image of a measuring point recorded on the image plane is displaced by the corresponding amounts related to the distance between the camera and the measuring point. When the refractor that keeps the angle against the optical axis is rotated physically at high speed during the exposure of the camera, the image of a measuring point draws an annular streak. Since the size of the annular streak is inversely proportional to the distance between the camera and the measuring point, the 3D position of the measuring point can be obtained by processing the streak. In this paper, for one of the applications of our system, the measurement of a moving surface is introduced. In order to measure the moving surface, multi laser spots are projected on the surface of object. Each position of ...

  • PDF

Measuring Structural Vibration from Video Signal Using Curve Fitting (영상 신호에서 커브 피팅을 이용한 구조물 진동 측정)

  • Jeon, Hyeong-Seop;Choi, Young-Chul;Park, Jong-Won
    • Transactions of the Korean Society for Noise and Vibration Engineering
    • /
    • v.19 no.9
    • /
    • pp.943-949
    • /
    • 2009
  • Many studies for measuring vibration using image signal are suggested. These methods can measure vibration of multi-points simultaneously. However, it has the disadvantage that is very sensitive to an environment. If the measured environment is not good, image signals can be measured including much background noise. So, it is difficult to obtain accurate vibration from the measured image signals. Another problem is that camera imaging has a resolution limit. Because the resolution of the camera image is relatively much lower than that of a data acquisition system, accurate measuring vibration cannot be performed. In this paper, we proposed the enhanced technique for measuring vibration using camera signal. The key word of this paper is a curve fitting. The curve fitting can exactly detect the measurement line of interested object. So, we can measure the vibration in noisy environment. Also, it can overcome the resolution limit.

Development of a Monitoring and Forecasting System for the Delivery of Pregnant Sow (임신돈의 분만 감시 및 예측 시스템 개발)

  • 임영일
    • Journal of Animal Environmental Science
    • /
    • v.6 no.1
    • /
    • pp.15-22
    • /
    • 2000
  • A monitoring and the forecasting system for the swine delivery was developed using CCD camera multi-function board microphone and data-recorder equipped on a personal computer. For the swine delivery monitoring and forecasting factors four factors were selected such as genitalia swine body shape breast color and sound. Image of physical variation of body shape, shape and color of genitalia area and color of breast of pregnant sow were grabbed using the CCD color camera and multi-function board and variation of voice of pregnant sow was acquired using microphone and data recorder. Acquired information of image and voice were analyzed using a custom developed algorithm and program. The result of the forecasting efficiency of swine delivery was 89%, 71% and 100% using the variation of genitalia are the body shape and the voice of pregnant sow. respectively. The efficiency of image processing was 100% for the delivery detection when the piglet was delivered half of its body from genitalia of pregnant sow, The monitoring and forecasting system informed the estimated time of the delivery of swine to a farm manager immediately if an estimated and established time set by the farm manager was the same and/or the estimated time ws earlier than the established time and the system detected the delivery.

  • PDF

Moving Objects Tracking Method using Spatial Projection in Intelligent Video Traffic Surveillance System (지능형 영상 교통 감시 시스템에서 공간 투영기법을 이용한 이동물체 추적 방법)

  • Hong, Kyung Taek;Shim, Jae Homg;Cho, Young Im
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.25 no.1
    • /
    • pp.35-41
    • /
    • 2015
  • When a video surveillance system tracks a specific object, it is very important to get quickly the information of the object through fast image processing. Usually one camera surveillance system for tracking the object made results in various problems such like occlusion, image noise during the tracking process. It makes difficulties on image based moving object tracking. Therefore, to overcome the difficulties the multi video surveillance system which installed several camera within interested area and looking the same object from multi angles of view could be considered as a solution. If multi cameras are used for tracking object, it is capable of making a decision having high accuracy in more wide space. This paper proposes a method of recognizing and tracking a specific object like a car using the homography in which multi cameras are installed at the crossroad.

Design and Implementation of PC-Mechanic Education Application System Using Image Processing (영상처리를 이용한 PC 내부구조 학습 어플리케이션 설계 및 구현)

  • Kim, Won-Jin;Kim, Hyung-Ook;Jo, Sung-Eun;Jang, Soo-Jeong;Moon, Il-Young
    • The Journal of Korean Institute for Practical Engineering Education
    • /
    • v.3 no.2
    • /
    • pp.93-99
    • /
    • 2011
  • We introduce the application what using the MultiTouch-Table of the PC-mechanic Certification. Thesedays, People does't use the Mouse and Keyboard and use people gesture. We introduce Graphic and Image by addition. Theseday, MultiTouch-Table is so famous. We use it the multitouch-table to on 3D Maxs and C#. We help them to get the certification using the component Scale and Drags through the camera view and then include the PC-Mechanic question of domestic.

  • PDF

A study on the detection of pedestrians in crosswalks using multi-spectrum (다중스펙트럼을 이용한 횡단보도 보행자 검지에 관한 연구)

  • kim, Junghun;Choi, Doo-Hyun;Lee, JongSun;Lee, Donghwa
    • Journal of Korea Society of Industrial Information Systems
    • /
    • v.27 no.1
    • /
    • pp.11-18
    • /
    • 2022
  • The use of multi-spectral cameras is essential for day and night pedestrian detection. In this paper, a color camera and a thermal imaging infrared camera were used to detect pedestrians near a crosswalk for 24 hours at an intersection with a high risk of traffic accidents. For pedestrian detection, the YOLOv5 object detector was used, and the detection performance was improved by using color images and thermal images at the same time. The proposed system showed a high performance of 0.940 mAP in the day/night multi-spectral (color and thermal image) pedestrian dataset obtained from the actual crosswalk site.

The Measurement of Flight Data of Golfball with High-Speed Multi-Exposure Image (고속 다중 노출 영상을 이용한 골프공의 비행 요소 측정)

  • Kim, Ki-Hyun;Park, Hyun-Woo;Ju, Woo-Suk;Lee, Dong-Hoon;Yun, Tae-Soo
    • Journal of Korea Multimedia Society
    • /
    • v.12 no.5
    • /
    • pp.699-707
    • /
    • 2009
  • Recently, while 3D sports game increases, the research that it recognizes the operation of the real user actively progresses. Most of all, the research about the golf is active. In this paper, the camera acquiring in a high-speed multi-exposure image measures the flight data of the golf ball through the image processing. While photographing, the high-speed camera, using this system, exposes an image at regular intervals. And line scan camera checks whether the golf ball passed or not. After the location information of the calculated golf ball calculates a speed and a direction by using the physical formula, it applies the golf simulation. After, this system is possible the measurement of the physical element of the spherical object.

  • PDF

The flight Test Procedures For Agricultural Drones Based on 5G Communication (5G 통신기반 농업용 드론 비행시험 절차)

  • Byeong Gyu Gang
    • Journal of Aerospace System Engineering
    • /
    • v.17 no.2
    • /
    • pp.38-44
    • /
    • 2023
  • This study aims to determine how agricultural drones are operated for flight tests using a 5G communication in order to carry out a mission such as sensing agricultural crop healthy status with special cameras. Drones were installed with a multi-spectral and IR camera to capture images of crop status in separate altitudes with different speeds. A multi-spectral camera can capture crop image data using five different particular wavelengths with a built-in GPS so that captured images with synchronized time could provide better accuracy of position and altitude during the flight time. Captured thermal videos are then sent to a ground server to be analyzed via 5G communication. Thus, combining two cameras can result in better visualization of vegetation areas. The flight test verified how agricultural drones equipped with special cameras could collect image data in vegetation areas.

Server and Client Simulator for Web-based 3D Image Communication

  • Ko, Jung-Hwan;Lee, Sang-Tae;Kim, Eun-Soo
    • Journal of Information Display
    • /
    • v.5 no.4
    • /
    • pp.38-44
    • /
    • 2004
  • In this paper, a server and client simulator for the web-based multi-view 3D image communication system is implemented by using the IEEE 1394 digital cameras, Intel Xeon server computer and Microsoft's DirectShow programming library. In the proposed system, two-view image is initially captured by using the IEEE 1394 stereo camera and then, this data is compressed through extraction of its disparity information in the Intel Xeon server computer and transmitted to the client system, in which multi-view images are generated through the intermediate views reconstruction method and finally display on the 3D display monitor. Through some experiments it is found that the proposed system can display 8-view image having a grey level of 8 bits with a frame rate of 15 fps.