Paper Key : IRJ************435
Author: Bhagwati Garg,Anubhav Pandey
Date Published: 05 Feb 2024
Abstract
Initially developed for the purpose of scanning lung cancer images, CT-scan is a method of medical imaging for tomography that produces three-dimensional images in one axis; it functions similarly to a digital x-ray, showing hard tissues as darker and soft tissues as lighter. Currently, image processing technology is the most commonly used field in medical science for the detection of various cancers or tumors. Up to 90% of lung cancer cases are directly related to tobacco smoke, with the remaining 10 to 15% resulting from other causes. These cases are now frequently formed by a combination of hereditary components and presentation to asbestos and various types of air contamination. Lung cancer detection is a difficult task that is typically handled by doctors, who also perform the manual diagnosis. Here, a system that requires less processing time to automatically identify cancer from an input image has been proposed. The Sobel edge detection technique is employed by the system to extract edges and determine the smoothening area, thereby masking unwanted areas and focusing only on the ROI. In order to obtain the cancer area from a lung image or to fill in tiny holes and widen the lighter area for ROI extraction, dilation is also utilized. Although the lung image is already in black and white, it will still be further processed using different filtration techniques to create binary and grayscale images for image enhancement. A lung image can be processed through a number of intermediate states to look for any cancerous spots. If a spot is found, the contrast is automatically increased, resulting in a lung image that has been affected by cancer; otherwise, the image is declared to be healthy. The system has a lower false alarm rate and a higher precision rate. The two spongy organs in the chest that are the lungs are responsible for breathing in oxygen and exhaling carbon dioxide. Lung cancer is the primary cause of cancer-related deaths in India, affecting both men and women. More people die from lung cancer every year than from breast, colon, prostate, or ovarian cancer combined. People who smoke have the greatest risk of lung cancer, although lung cancer can also be found in those people who have never smoked. The number of cigarettes a person smoke and the risk of lung cancer increases over time. If a person quit smoking after smoking for many years, he can greatly reduce the chances of developing lung cancer.