Endocardial boundary detection by fuzzy inference on echocardiography

퍼지 추론에 의한 심초음파 영상의 심내벽 윤곽선 검출

  • 원철호 (경북대학교 전자공학과) ;
  • 채승표 (경북대학교 전자공학과) ;
  • 구성모 (두원공업전문대학 전파통신과) ;
  • 김명남 (경북대학교 의공학과) ;
  • 조진호 (경북대학교 전자공학과)
  • Published : 1997.05.01

Abstract

In this paper, a an algorithm that detects the endocardial boundary, expanding the region from endocardial cavity using fuzzy inference, is proposed. This algorithm decides the ventricular cavity by fuzzy inference in process of searching each pixel from the inside of left ventricle in echocardial image and expands it. Uncertainty and fuzziness exists in decision of endocardial boundary. Therefore, we convert the lingustic representation of mean, standard deviation, and threshold value that are characteristic variables of endocardial boundary to fuzzy input and output variables. And, we extract proposed method is robuster to noise than radial searching method that is highly dependent on center position. To prove the similarity of detected boundary by fuzzy nference, we used the measures of SIZE, correlation coefficient, MSD, and RMSE and had acquired reasonable results.

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