Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Control for Optical Image Stabilization System in Digital Cameras

디지털 카메라용 이미지 안정화 시스템 제어

  • 조주연 (KAIST 기계공학부) ;
  • 조우종 (삼성디지털이미징 렌즈개발그룹) ;
  • 박정호 (삼성디지털이미징 렌즈개발그룹) ;
  • 김경수 (KAIST 기계공학부)
  • Received : 2009.10.31
  • Accepted : 2010.02.04
  • Published : 2010.05.01
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Abstract

As high quality image is required for digital cameras in recent use, the image stabilization technique has drawn much attention to prevent image degradation from shaky disturbance by users. In this paper, the optical image stabilization (OIS) system for DSLR (Digital Single Lens Reflex) camera is considered. First, the analytic model of an OIS system is presented to demonstrate the mechanism of image destabilization due to unknown disturbance that causes blurry images on CCD sensor. Then, to enhance the stabilization performance, a sliding mode control based on the min-max nonlinear control is introduced. Through the experiments and simulations, the effectiveness of the proposed method will be verified.

Keywords

References

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