Identification of Lung Lesions in Computed Tomography Scan Images using Machine Learning Techniques

Lung cancer is a common cause of death among people throughout the world. Other methods for detecting lung cancer include computed tomography (CT), magnetic resonance imaging (MRI), and radiography. This method suggests CT is useful for detecting lung cancer since it is widely available, has a shorter imaging time, and is less expensive. For clinical analysis and effective preventive planning by medical authorities to lower the number of fatalities, early diagnosis of lung lesions is crucial. Visual score is a typical method used by skilled radiologists to manually identify lesions on CT images. Nevertheless, the manual approach is labor-intensive, time-consuming, tedious, and visible. This research proposes a method for automatically detecting soft lung tissue lesions for CT images. To detect lung lesions from CT scans, the system employs image processing and machine learning techniques. The proposed automatic identification system divided into three stages. The first stage is image acquisition and data collection. The second stage proposed method involved designing a procedure for lung region segmentation using an image processing technique specifically for lung region for detection of lesions. The final stage explains an automated lesion identification for further classifying the lesion and non-lesion from CT scan lung images based on geometrical properties that have been calculated. Finally, a system that utilized the best of above-mentioned methods is proposed to perform the automated lesion detection. The method achieved high capability for automatically identifying lung lesions near the manually delineated lesion by radiologists with ${9 8 \%}$ accuracy. These findings show the possible used of this approach as an assisted tool for the radiologist in detecting lung lesions.