Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Development of Unmanned Video Recording System using Mobile

모바일을 이용한 무인 영상 녹화 시스템 개발

  • Ahn, Byeongtae (Department of Computer, Liberal & Arts College, Anyang University)
  • 안병태 (안양대학교 교양대학 컴퓨터전공)
  • Received : 2019.03.14
  • Accepted : 2019.06.07
  • Published : 2019.06.30
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Abstract

Recently, a self-camera that generates and distributes a large amount of moving images has been rapidly increasing due to the appearance of SNS such as Facebook, Instagram, and Tweet using mobile. In particular, the amount of SNS connections using mobile phones is significantly increasing in terms of usage, number of connections, and usage time. However, the use of a self-recording system using a smartphone by itself is extremely limited not only in terms of usage but also in frequency of use. In addition, the conventional unattended recording system is a very expensive system that automatically records and tracks an object to be photographed using an infrared signal. Therefore, this paper developed a low cost unmanned recording system using mobile phone. The system consists of a commercial mobile camera, a servomotor for moving the camera from side to side, a microcontroller for controlling the motor, and a commercial wireless Bluetooth earset for video audio input. And it is an unmanned automation system using mobile, and anyone can record image by self image tracking.

최근, 모바일을 이용한 페이스북, 인스타그램, 트윗과 같은 SNS의 등장으로 대량의 동영상을 제작 및 배포하는 셀프 카메라가 급속도로 증가하고 있다. 특히, 모바일 폰을 이용한 SNS 접속량은 기존 PC보다 사용량, 접속 횟수, 사용시간에서 대폭적으로 증가하고 있다. 그러나 스스로 스마트 폰을 이용한 셀프 녹화 시스템 사용은 사용 방법에 있어서 뿐만 아니라 사용 빈도에서도 극히 제한적이다. 그리고 기존의 무인 녹화 시스템은 적외선 신호를 이용하여 촬영 대상을 자동으로 추적 및 회전하여 녹화하는 시스템으로 매우 고가이다. 따라서 본 논문에서는 모바일 폰을 이용한 저비용 무인녹화 시스템을 개발하였다. 본 시스템은 상용 모바일 카메라와 좌우로 카메라를 움직이는 서보모터, 모터를 제어하는 마이크로 컨트롤러 그리고 동영상 오디오 입력을 담당할 상용 무선 블루투스 이어셋으로 구성된다. 그리고 모바일을 이용한 무인 자동화 시스템으로 누구나 개인 스스로 이미지 영상 추적에 따른 녹화 기능이 제공된다.

Keywords

SHGSCZ_2019_v20n6_254_f0001.png 이미지

Fig. 1. TRI(Tracking & Recording Itself)

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Fig. 2. ‘PTZ Camera’(Model : B00DPSBV1G)

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Fig. 3. Implemented Face Detection Screen

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Fig. 4. Implemented CAM-Shift Screen

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Fig. 5. Target Tracking Algorithm Flowchart

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Fig. 6. Decision criterion for rotation direction of pan-tilt

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Fig. 7. Added Gestures Case of CAM-Shift

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Fig. 8. UI Structure

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Fig. 9. Mobile App Main Screen

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Fig. 10. Compare Table of Swivl, PTZ　Camera, TRI

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