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- W2045382880 abstract "삼차원 볼륨 영상으로부터 대상 물체를 분할하는 것은 가시화 또는 볼륨 측정을 위해서 매우 중요한 단계이다. 본 논문에서는 볼륨 가시화를 위해 널리 사용되는 르보이 필터링 방법을 개선하여 물체의 표면을 검출하는 방법을 제시한다. 그리고 형태학적 연산자를 이용하여 완전히 닫힌 표면을 생성하고 볼륨 확장 알고리즘에 의해 물체를 선택적으로 분할한다. 제시된 방법은 합성된 삼차원 구 영상과 심혈관 조영영상에 적용되었다. 이 방법을 합성된 구 영상을 사용하여 기존의 브로이 필터링과 정량적으로 비교한 결과 제시한 방법이 복셀 오차면에서 더 우수하였다. 또한 심혈관 영상을 사용하여 시각적으로 비교한 결과 역시 제시한 방법이 더 정확하였다. 본 논문에서 제시한 방법은 삼차원 영상처리에서 자주 함께 사용되는 분할, 가시화, 측정을 쉽게 연계할 수 있기 때문에 볼륨 영상의 분할을 위해 매우 효고적이다. The segmentation of target objects from three dimensional volume images is an essential step for visualization and volume measurement. In this paper, we present a method to detect the surface of objects by improving the widely used levoy filtering for volume visualization. Using morphological operators we generate completely closed surfaces and selectively segment objects using the volume growing algorithm. The presented method was applied to 3-D artificial sphere images and angiocardiograms. We quantitatively compared this method with the conventional levoy filtering using artificial sphereimages, and the results showed that our method is better in the aspect of voxel errors. The results of visual comparison using angiocardiograms also showed that our method is more accurate. The presented method in this paper is very effective for segmentation of volume data because segmentation, visualization and measurement are frequently used together for 3-D image processing and they can be easily related in our method." @default.
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- W2045382880 date "2002-03-01" @default.
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- W2045382880 title "Selective Segmentation of 3-D Objects Using Surface Detection and Volume Growing" @default.
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- W2045382880 doi "https://doi.org/10.3745/kipsta.2002.9a.1.083" @default.
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