ABSTRACT

Under digital image processing, medical images have lots of applications like oncological diagnosis of tumors and chemotherapy. Computed Tomography (CT) images are used to capture images of solid lesions like lung or liver. For oncological chemotherapy based therapeutics, estimation of size of tumor is the main task to determine whether the treatment is in right path or not. This means that, after chemotherapy, tumor either grows or shrinks. Due to irregular growth of tumor, diameter of tumor is not a standard parameter to determine the size. Volume is the appropriate method to identify the size. But partial volume artifacts, which arise due to low resolution of imaging device, reduces the accuracy of measurement. Partial volume correction (PVC) which extracts the necessary information from the segmented output resolves this problem. This paper presents a different perspective of accurate volumetric measurement by correcting partial volume effect at the borders of segmentation result.