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Video Rate Image Signal Processing for Optical Coherence Tomography

광학 영상기를 위한 실시간 영상 신호 처리에 관한 연구

  • 나지훈 (광주과학기술원 정보통신공학과) ;
  • 이병하 (광주과학기술원 정보통신공학과) ;
  • 이창수 (수원대학교 전자공학과)
  • Published : 2004.03.01

Abstract

Optical coherence tomography(OCT) is high resolution imaging system which can see the cross section of microscopic organs in the living tissue. In this paper, we analyze the relation between the light source and the resolution of modulated signal in Michelson interferometer. We construct 1-D OCT signal processing hardware such as amplifiers, filters, and demodulate electronic signals from the photo detector. In order to get 2-D OCT image, the synchronization among optical delay line, sample stage and A/D converter is dealt with. In experiments, we verify analog and digital signal processing blocks which apply to the stacks of glasses. Finally we aquire high resolution 2-D OCT image with respect to the onion tissue. We expect that this result can be applied to the medical instrument through performance improvement.

Keywords

References

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