Lung Tumor Segmentation and Staging from CT Images Using Fast and Robust Fuzzy C-Means Clustering
Автор: Rupak Bhakta, A. B. M. Aowlad Hossain
Журнал: International Journal of Image, Graphics and Signal Processing @ijigsp
Статья в выпуске: 1 vol.12, 2020 года.
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Lung tumor is the result of abnormal and uncontrolled cell division and growth in lung region. Earlier detection and staging of lung tumor is of great importance to increase the survival rate of the suffered patients. In this paper, a fast and robust Fuzzy c-means clustering method is used for segmenting the tumor region from lung CT images. Morphological reconstruction process is performed prior to Fuzzy c-means clustering to achieve robustness against noises. The computational efficiency is improved through median filtering of membership partition. Tumor masks are then reconstructed using surface based and shape based filtering. Different features are extracted from the segmented tumor region including maximum diameter and the tumor stage is determined according to the tumor staging system of American Joint Commission on Cancer. 3D shape of the segmented tumor is reconstructed from series of 2D CT slices for volume measurement. The accuracy of the proposed system is found as 92.72% for 55 randomly selected images from the RIDER Lung CT dataset of Cancer imaging archive. Lower complexity in terms of iterations and connected components as well as better noise robustness are found in comparison with conventional Fuzzy c-means and k-means clustering techniques.
Fuzzy c-means clustering, morphological reconstruction, noise robustness, computational efficiency, lung tumor segmentation, tumor staging
Короткий адрес: https://sciup.org/15017064
IDR: 15017064 | DOI: 10.5815/ijigsp.2020.01.05
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