Automatic segmentation refers to the use of AI and machine learning algorithms to delineate specific regions in medical images, such as identifying tumor boundaries in cancer imaging. This process involves analyzing large sets of imaging dataâsuch as CT, MRI, or PET scansâto identify and isolate cancerous tissues from non-cancerous ones. The goal is to improve the accuracy and efficiency of cancer diagnosis and treatment planning by providing precise, repeatable, and objective segmentations.