Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A Study on the Lung Nodule Detection Usign Difference Image of Right and Left Side in Chest X-Ray

흉부X선 영상에서의 좌우영상차를 이용한 노듈검출에 관한 연구

  • Mun, Seong-Bae (Institute of Biomedical Engineering, College of Medicine, Soul National University) ;
  • Park, Gwang-Seok (Dept. of Biomedical Engineering, College of Medicine Seoul National University) ;
  • Min, Byeong-Gu (Dept. of Biomedical Engineering, College of Medicine Seoul National University)
  • 문성배 (서울대학교 의과대학 의공학연구소) ;
  • 박광석 (서울대학교 의과대학 의공학교실) ;
  • 민병구 (서울대학교 의과대학 의공학교실)
  • Published : 1990.12.01
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Abstract

Pulmonary nodules in chest X-Ray images were detected using the symmetric property of human lung and its performance was evaluated. Thls algorithm reduced the effect of background components and enhanced the nodule signals relatively. The image was divided and processed separately, the half with matched filter only, and the other half with warping and matched filter. This algorithm increased the entire detection rate by reducing False-Positive error and improving True-Positive detectability. Result shows 10-25 % improvement in detection rate compared with the conventional alsorithm for nodules size of 10mm.

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