Lung Image Segmentation Using Fuzzy K-Means in Graph Cut Methodology


Authors : Dr R. Hemalatha, D. Priyadharshini.

Volume/Issue : Volume 3 - 2018, Issue 11 - November

Google Scholar : https://goo.gl/DF9R4u

Scribd : https://goo.gl/augz6f

The Computer based procedure of distinguishing the limits of lung from encompassing thoracic tissue on Computerized Tomography (CT) Images, which is called segmentation, is an imperative initial phase in radiology pulmonary image examination. Numerous calculations and programming stages give image segmentation schedules to measurement of lung abnormalities; in any case, almost the majority of the present image segmentation approaches apply well just if the lungs display insignificant or no pathologic conditions. At the point when direct to high measures of diseases or variations from the norm with a testing shape or appearance exist in the lungs, computed aided detection frameworks might probably neglect to delineate those unusual areas as a result of off base division strategies. Specifically, abnormalities such as masses often cause inaccurate lung segmentation, pleural effusions and consolidations, which incredibly restrains the utilization of image handling techniques in clinical and examine settings. In this assessment, an important summary of present methods for lung segmentation based on CT images is provided, with the special emphasis on the performance and the accuracy all those methods in the cases of its abnormalities with the exemplary pathologic findings. The present available segmentation methods is divided into five major classification 1) region-based method, 2) Thresholding based method, 3) neighboring anatomyguided method, 4) shape-based method and 5) machine learning based methods. The possibility of each and every class and its shortcomings are briefly explained and expanded with the most common lung abnormal activities which is observed on Computer Tomography images. In an summary, the practical application and evolving techniques are combined for present approach to practicing radiologist in detailed manner.

Keywords : CT Images, Lung Segmentation, Dilation, Opening, Closing, Thresholding.

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