Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Evaluation of the Speckle Noise in Optical Scanning Holography

광 스캐닝 홀로그래피와 스펙클 잡음에 의한 오염도 평가

  • Kim, You Seok (Department of Optical Engineering, Sejong University) ;
  • Kim, Taegeun (Department of Optical Engineering, Sejong University)
  • Received : 2014.04.28
  • Accepted : 2014.05.26
  • Published : 2014.06.25
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Abstract

In this paper we record the complex hologram of a real object with optical scanning holography (OSH). We reconstruct the complex hologram using a numerical process, and then we evaluate the degree of contamination by speckle noise between the reconstruction of the complex hologram and the image captured by a CCD camera. We use the contrast of the speckle pattern for quantitative evaluation.

본 논문에서는 광 스캐닝 홀로그래피 기술을 이용하여 실제 물체의 복소 홀로그램 정보를 스펙클 잡음 없이 촬영하였다. 촬영된 복소 홀로그램 정보를 수치적인 방법으로 복원한 뒤 결맞음 광원과 CCD 카메라를 이용하여 촬영한 실제 물체의 영상과 비교하여 스펙클 잡음에 의한 오염도를 평가하였다. 스펙클 잡음에 의한 오염도를 정량적으로 평가하기 위하여 두 영상의 스펙클 패턴의 대비 수치를 이용하였다.

Keywords

References

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