CCD cameras monitoring a moving object generally operate with a fixed view point or a defined pattern. As a result, a free-moving object can move out of the CCD camera's field of vision quickly, and automatic control is required to observe the object continuously. This paper proposes a signal generation algorithm for the automatic control of a CCD camera. Using the control signal, the monitoring camera can track a moving object and keep it near the image center for a longer time. The proposed method is validated in experiments that automatically move a mark located at a specified position to the image center. The proposed algorithm computes horizontal and vertical displacements between the detected object position and the image center and coverts them into angles. Finally, pan/tilt data are generated from the angles. To evaluate the proposed algorithm, we compare the generated data in the automatic control with measured data in manual control and carry out the object tracking using a simple object. The experimental results show that the difference between the generated and measured data is a negligible quantity, and the object, which is moving within ranges of ±52o/±40o of pan/tilt, is kept within about ±13o/±10o from the image center.
목차
Abstract 1. Introduction 2. Comparison Experiments of Signals 2.1. Pan Data 2.2. Tilt Data 2.3. Zoom Data 3. Object Tracking Test of the CCD Camera 3.1. Initialization and Acceleration of Camera 3.2. Effect of Frame Frequency 3.3. Effect of the Size of Pan/tilt Signals 3.4. Fast-moving Object Tracking 3.5. Pan/tilt Data Modification 3.6. Limit of Object Tracking 3.7. Object Tracking of CCD Camera 4. Conclusion Acknowledgements References
보안공학연구지원센터(IJSEIA) [Science & Engineering Research Support Center, Republic of Korea(IJSEIA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Software Engineering and Its Applications
간기
월간
pISSN
1738-9984
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Software Engineering and Its Applications Vol.8 No.3