The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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A Study on Image Improvement using Multiple Cameras

다중 카메라를 이용한 영상 개선에 관한 연구

  • 김석진 (남서울대학교 전자공학과) ;
  • 김용우 (남서울대학교 전자공학과) ;
  • 윤상원 (남서울대학교 전자공학과) ;
  • 김체은 (남서울대학교 전자공학과) ;
  • 이승대 (남서울대학교 전자공학과)
  • Received : 2018.06.25
  • Accepted : 2018.08.15
  • Published : 2018.08.31
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Abstract

This paper is about image improvement - we used the contrast ratio and the outline emphasis method after synthesizing two low quality images utilized by several low definition cameras. Two raspberry cameras were used to capture each image, and then we synthesized images with MATLAB program. After applying the mean computation (alignment, geometry, and harmony) to synthesized image, we extracted the cross-space. In the experiment of this study, we identified and compared the improvement consequences of extracted, synthesized image after applying outline emphasis(unsharpmask filter, highboost filter) and increasing contrast ratio (histogram uniformity, histogram stretching) to the original images.

본 논문에서는 여러 대의 저화질 카메라를 이용하여 두 영상을 합성 후 명암비 증가와 윤곽선 강조법을 이용한 영상 개선을 하였다. 두 대의 라즈베리 카메라를 이용하여 각각의 영상을 촬영한 후 매트랩을 이용하여 합성하였다. 합성 영상에 평균 연산(산술, 기하, 조화)을 적용한 후 교차영역을 추출하였다. 본 논문의 실험에서는 추출된 합성 영상에 윤곽선 강조 방법(언샤프마스크 필터, 하이부스트 필터)과 명암비 증가 방법(히스토그램 균등화, 히스토그램 스트레칭)을 적용하여 영상 개선 결과를 확인 및 비교하였다.

Keywords

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