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Color Image Segmentation for Extracting Dental Plaque

컬러영상 분할기법을 이용한 치아 플라그 영역 검출

  • 김경섭 (건국대 의료생명대 의학공학부, 건국대 의공학실용기술연구소) ;
  • 신승원 (건국대 의료생명대 의학공학부) ;
  • 이세민 (건국대 의료생명대 의학공학부) ;
  • 정진선 (연세대 일반대학원 치의학과) ;
  • 박원서 (연세대 치과대학병원 통합진료과 임상부) ;
  • 김기덕 (연세대 치과대학병원 통합진료과)
  • Received : 2011.05.09
  • Accepted : 2011.05.22
  • Published : 2011.06.01

Abstract

In this study, we propose the unsupervised image segmentation algorithm to estimate dental plaque accumulations on digital imaging with methylene blue disclosed plaque. With this aim, RGB color plane is mapped into HSI coordinates and the circular histogram of Hue is reconstructed by applying Otsu's threshold level. The histogram distribution on Saturation features is also analyzed by maximizing the variance between a plaque candidate and non-plaque one. The dental plaque regions are resolved by applying the composite decision logics based on the threshold level of Hue and Saturation.

Acknowledgement

Supported by : 한국연구재단

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