A Study on the Classification of Ultrasonic Liver Images Using Multi Texture Vectors and a Statistical Classifier

다중 거칠기 벡터와 통계적 분류기를 이용한 초음파 간 영상 분류에 관한 연구

  • 정정원 (연세대학교 의용전자공학과) ;
  • 김동윤 (연세대학교 의용전자공학과)
  • Published : 1996.12.01

Abstract

Since one texture property(i.e coarseness, orientation, regularity, granularity) for ultrasound liver ages was not sufficient enough to classify the characteristics of livers, we used multi texture vectors tracted from ultrasound liver images and a statistical classifier. Multi texture vectors are selected among the feature vectors of the normal liver, fat liver and cirrhosis images which have a good separability in those ultrasound liver images. The statistical classifier uses multi texture vectors as input vectors and classifies ultrasound liver images for each multi texture vector by the Bayes decision rule. Then the decision of the liver disease is made by choosing the maximum value from the averages of a posteriori probability for each multi texture vector In our simulation, we obtained higtler correct ratio than that of other methods using single feature vector, for the test set the correct ratio is 94% in the normal liver, 84% in the fat liver and 86% in the cirrhosis liver.

Keywords

References

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