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Digital Contents Society (한국디지털콘텐츠학회)
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Detecting the Prostate Boundary with Gabor Texture Features Average Shape Model of TRUS Prostate Image

TRUS 전립선 영상에서 가버 텍스처 특징 추출과 평균형상모델을 적용한 전립선 경계 검출

  • Kim, Hee Min (Gyeongsang University Computer Science) ;
  • Hong, Seok Won (Gyeongnam Provincial Geochang College, Institute of Information) ;
  • Seo, Yeong Geon (Gyeongsang National University, Dept. of Computer Science, Graduate School of CCBM) ;
  • Kim, Sang Bok (Gyeongsang National University, Dept. of Computer Science, Graduate School of CCBM)
  • Received : 2015.09.18
  • Accepted : 2015.10.26
  • Published : 2015.10.31
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Abstract

Prostate images have been used in the diagnosis of prostate using TRUS images being relatively cheap. Ultrasound images are recorded with 3 dimension and one diagnostic exam is made with a number of the images. A doctor can see 2 dimensional images on the monitor sequentially and 3 dimensional ones to diagnose a disease. To display the images, 2-d images are used with raw 2-d ones, but 3-d images need to be segmented by the prostates and their backgrounds to be seen from different angles and with cut images of inner side. Especially on detecting the boundary, the ones in the middle of all images are easy to find the boundary but the base and apex of the images are hard to do it since there are lots of uncertain boundary. So, in this paper we propose the method that applies an average shape model and detects the boundary, and shows its superiority compared to the existing methods with experiments.

전립선 영상은 비용이 상대적으로 저렴한 경직장 초음파 영상을 이용하여 전립선 진단에 많이 사용된다. 경직장 초음파 영상은 3차원으로 촬영되어 여러 장으로 하나의 진단 단위가 만들어 진다. 의사는 진단을 위해 2차원 영상을 순서대로 모니터에 표시하여 볼 수도 있고, 3차원의 영상을 볼 수도 있다. 2차원 영상은 원 영상을 그대로 출력하면 되지만, 3차원 영상은 다양한 각도에서 보이기도 하고, 내부의 어떤 면을 자른 형태로도 보여야 하므로 정확하게 전립선과 배경을 구분하여야 한다. 특히 경계를 구분할 때, 전립선의 중간 부분은 상대적으로 구분하기 쉬우나, 기저부와 첨단부는 불확실한 부분이 많으므로 경계를 구분하기기 매우 어렵다. 이에, 본 논문은 평균 형상 모델을 적용하여 전립선 경계를 추출하는 방법을 제안하고, 실험을 통하여 기존의 방법에 비해 우수함을 보인다.

Keywords

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