• 제목/요약/키워드: Real Time Tracking System

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Real-time Target Tracking System by Extended Kalman Filter (확장칼만필터를 이용한 실시간 표적추적)

  • 임양남;이성철
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.7
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    • pp.175-181
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    • 1998
  • This paper describes realtime visual tracking system of moving object for three dimensional target using EKF(Extended Kalman Filter). We present a new realtime visual tracking using EKF algorithm and image prediction algorithm. We demonstrate the performance of these tracking algorithm through real experiment. The experimental results show the effectiveness of the EKF algorithm and image prediction algorithm for realtime tracking and estimated state value of filter, predicting the position of moving object to minimize an image processing area, and by reducing the effect by quantization noise of image.

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Real-time face tracking for high-resolution intelligent surveillance system (고해상도 지능형 감시시스템을 위한 실시간 얼굴영역 추적)

  • 권오현;김상진;김영욱;백준기
    • Proceedings of the IEEK Conference
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    • 2003.11a
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    • pp.317-320
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    • 2003
  • In this paper, we present real-time, accurate face region detection and tracking technique for an intelligent surveillance system. It is very important to obtain the high-resolution images, which enables accurate identification of an object-of-interest. Conventional surveillance or security systems, however, usually provide poor image quality because they use one or more fixed cameras and keep recording scenes without any clue. We implemented a real-time surveillance system that tracks a moving person using pan-tilt-zoom (PTZ) cameras. While tracking, the region-of-interest (ROI) can be obtained by using a low-pass filter and background subtraction. Color information in the ROI is updated to extract features for optimal tracking and zooming. The experiment with real human faces showed highly acceptable results in the sense of both accuracy and computational efficiency.

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Improved Tracking System and Realistic Drawing for Real-Time Water-Based Sign Pen (향상된 트래킹 시스템과 실시간 수성 사인펜을 위한 사실적 드로잉)

  • Hur, Hyejung;Lee, Ju-Young
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.2
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    • pp.125-132
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    • 2014
  • In this paper, we present marker-less fingertip and brush tracking system with inexpensive web camera. Parallel computation using CUDA is applied to the tracking system. This tracking system can run on inexpensive environment such as a laptop or a desktop and support for real-time application. We also present realistic water-based sign pen drawing model and implementation. The realistic drawing application with our inexpensive real-time fingertip and brush tracking system shows us the art class of the future. The realistic drawing application, along with our inexpensive real-time fingertip and brush tracking system, would be utilized in test-bed for the future high-technology education environment.

The Real Time Vehicles Tracking and Intelligent Transportation Management System Using Smart Phone Application (스마트폰을 활용한 실시간 화물추적 및 지능형 수.배송 관리시스템)

  • Kim, Sung-Gyun;Byun, Hae-Gwon;Yoo, Woo-Sik;Choi, Jin-Suk
    • IE interfaces
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    • v.24 no.4
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    • pp.428-434
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    • 2011
  • In these days, mobile technology such as smart phone and GPS have an effect on business processes of many companies especially a transportation company. The purpose of this paper is to present the development processes of real time vehicles tracking and intelligent TMS (Transportation Management System) using smart phone applications. The objective of this study is two-fold. The first is to redesign business process of the transportation company. Using BPR (business process re-engineering), we analyze current processes to find opportunities for improvement redefining processes after adopting mobile technology precisely. The second is to develop the real time vehicles tracking and intelligent TMS. Proposed system consists of four parts : (1) intelligent TMS(web system) (2) real time vehicle tracking application for TMS (3) real time tracking application for customer (4) salesman supporting application. Developed system was tested at the transportation company and was found to be an useful system.

Real-time Visual Tracking System and Control Method for Laparoscope Manipulator (복강경 수술용 도구의 실시간 영상 추적 및 복강경 조종기의 지능형 제어 방법)

  • 김민석;허진석;이정주
    • Journal of the Korean Society for Precision Engineering
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    • v.21 no.11
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    • pp.83-90
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    • 2004
  • In this paper we present a new real-time visual servoing unit for laparoscopic surgery This unit can automatically control laparoscope manipulator through visual tracking of laparoscopic surgical tool. For the tracking, we present two-stage adaptive CONDENSATION(conditional density propagation) algorithm to extract the accurate position of the surgical tool tip from a surgical image sequence in real-time. This algorithm can be adaptable to abrupt change of laparoscope illumination. For the control, we present virtual damper system to control a laparoscope manipulator safely and stably. This system causes the laparoscope to move under constraint of the virtual dampers which are linked to the four sides of image. The visual servoing unit operates the manipulator in real-time with locating the surgical tool in the center of image. The experimental results show that the proposed visual tracking algorithm is highly robust and the controlled manipulator can present stable view with safe.

Optoneural Multitarget Tracking System Based on Optical BJTC and Neural Networks (광 BJTC와 신경회로망을 이용한 광-신경망 다중 표적 추적 시스템)

  • 이상이;류충상;김승현;김은수
    • Journal of the Korean Institute of Telematics and Electronics A
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    • v.31A no.3
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    • pp.1-9
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    • 1994
  • In this paper as a new approach for real-time multitarget tracking, a hybrid OptoNeural multitarget tracking system based on optical BJTC and neural networks data association algorithm is suggested. In the proposed hybrid tracking system, an optical BJTC is introduced as a preprocessor to reduce the massive input target data into a few correlation peak signals and then the neural networks data association algorithm is used for the massively parallel data association between measurement signals and targets in real-time. Finally, new hybrid type OptoNeural target tracking system is constructed and then some experimental results on multitarget tracking is included. The real-time implementation method of the proposed hybrid system is also discussed.

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Design of Vehicle Location Tracking System using Mobile Interface

  • Chung, Ji-Moon;Choi, Sung;Ryu, Keun-Ho
    • 한국디지털정책학회:학술대회논문집
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    • 2004.11a
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    • pp.185-202
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    • 2004
  • Recent development in wireless computing and GPS technology cause the active development in the application system of location information in real-time environment such as transportation vehicle management, air traffic control and location based system. Especially, study about vehicle location tracking system, which monitors the vehicle's position in a control center, is appeared to be a representative application system. However, the current vehicle location tracking system can not provide vehicle position information that is not stored in a database at a specific time to users. We designed a vehicle location tracking system that could track vehicle location using mobile interface such as PDA. The proposed system consist of a vehicle location retrieving server and a mobile interface. It is provide not only the moving vehicle's current location but also the position at a past and future time which is not stored in database for users.

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A Maximum Power Control of IPMSM with Real-time Parameter Identification

  • Jun, Hyunwoo;Ahn, Hanwoong;Lee, Hyungwoo;Go, Sungchul;Lee, Ju
    • Journal of Electrical Engineering and Technology
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    • v.12 no.1
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    • pp.110-116
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    • 2017
  • This paper proposed a new real-time parameter tracking algorithm. Unlike the convenience algorithms, the proposed real-time parameter tracking algorithm can estimate parameters through three-phase voltage and electric current without coordination transformation, and does not need information on magnetic flux. Therefore, it can estimate parameters regardless of the change according to operation point and cross-saturation effect. In addition, as the quasi-real-time parameter tracking technique can estimate parameters through the four fundamental arithmetic operations instead of complicated algorithms such as numerical value analysis technique and observer design, it can be applied to low-performance DSP. In this paper, a new real-time parameter tracking algorithm is derived from three phase equation. The validity and usefulness of the proposed inductance estimation technique is verified by simulation and experimental results.

Parallelized Particle Swarm Optimization with GPU for Real-Time Ballistic Target Tracking (실시간 탄도 궤적 목표물 추적을 위한 GPU 기반 병렬적 입자군집최적화 기법)

  • Yunho, Han;Heoncheol, Lee;Hyeokhoon, Gwon;Wonseok, Choi;Bora, Jeong
    • IEMEK Journal of Embedded Systems and Applications
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    • v.17 no.6
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    • pp.355-365
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    • 2022
  • This paper addresses the problem of real-time tracking a high-speed ballistic target. Particle filters can be considered to overcome the nonlinearity in motion and measurement models in the ballistic target. However, it is difficult to apply particle filters to real-time systems because particle filters generally require much computation time. This paper proposes an accelerated particle filter using graphics processing unit (GPU) for real-time ballistic target tracking. The real-time performance of the proposed method was tested and analyzed on a widely-used embedded system. The comparison results with the conventional particle filter on CPU (central processing unit) showed that the proposed method improved the real-time performance by reducing computation time significantly.

A study on real-time path planning and visual tracking of the micro mobile robot (소형 이동 로봇의 실시간 경로계획과 영상정보에 의한 추적제어)

  • 김은희;오준호
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.04a
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    • pp.25-29
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    • 1997
  • In this thesis, we construct the microrobot succor system and navigate the real-time path planning and visual tracking of each robot. The system consists robots, vision system and a host computer. Because the robots are free-ranging mobile robot, it is needed to make and gallow the path. The path is planned and controlled by a host computer, ie. Supervisory control system. In path planning, we suggest a cost function which consists of three terms. One is the smoothness of the path, another is the total distance or time, and the last one is to avoid obstacles. To minimize the cost function, we choose the parametric cubic spline and update the coefficients in real time. We perform the simulation for the path planing and obstacle avoidance and real experiment for visual tracking

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