Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2003.11b
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- Pages.153-156
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- 2003
Segmentation of the Liver in CT using Morphological Filters
형태학적 필터를 이용한 CT 영상에서 간 영역 분할 기법
Abstract
In this paper, we propose a new scheme for automatic segmentation of the liver in CT images. The proposed scheme is carried out on region of interest(ROI) blocks that include regions of the liver with high probabilities. The ROI approach saves unnecessary computational loss in finding the accurate boundary of the liver. The proposed method utilizes the composition of multi-size morphological filters with a prior knowledge, such as the general location or the approximate intensity of the liver to detect the initial boundary of the liver. Then, we make the gradient image with the weight of the initial liver boundary and segment the liver legion by using an immersion-based waters hed algorithm in the gradient image. finally, the refining process is carried out to acquire a more accurate liver region.
Keywords