Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Edge Detection of 2D Echocardiogram Using Entropy Operator with Variable Threshold

가변 문턱치를 갖는 엔트로피 연산자를 이용한 2D 심초음파도의 에지 검출

  • Koo, Sung-Mo (Dept. of Electronics, Kyungpook rational university) ;
  • Cho, Sung-Mok (Dept. of Electronics, Kyungpook rational university) ;
  • Cho, Jin-Ho (Dept. of Electronics, Kyungpook National University, Dept. of Biomedical Eng. Kyungpook University Hospital) ;
  • Lee, Kuhn-Il (Dept. of Electronics, Kyungpook National University)
  • 구성모 (경북대학교 공과대학 전자공학과) ;
  • 조성목 (경북대학교 공과대학 전자공학과) ;
  • 조진호 (경북대학교 전자공학과 및 경북대학교병원 의공학과) ;
  • 이건일 (경북대학교 공과대학 전자공학과)
  • Published : 1992.05.15
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Abstract

A new algorithm using entropy operater with variable threshold for edge detection from 2D short axis echocardiogram is proposed. This algorithm is based on brightness, mean value of entropy, and variance value of entropy in local window. This algorithm is effective to process complex echocardiographic images due to the speckle noises, echo dropouts and characteristics of 2D echocardiographic constituents. Results of computer simulation of the proposed algorithm show excellent edge detection performance comparing wi th other edge operators which have been applied to 2D echocardiograms.

Keywords