1. A method, comprising: identifying a plurality of different anatomical sub-regions of a cardiovascular system of a subject in image data of the subject based on a subject specific cardiovascular anatomical model, wherein the plurality of different anatomical sub-regions corresponds to regions where calcifications occur; searching for calcifications in the sub-regions based on voxel grey value intensity values of the image data, identifying calcifications in a sub-region using a pre-determined threshold, wherein a first threshold is used for a first sub-region of the plurality of different anatomical sub-regions, a second threshold is used for a second sub-region of the plurality of different anatomical sub-regions, and the first and second thresholds are different; generating a signal indicative of one or more regions of voxels of the image data respectively corresponding to sub-regions including identified calcifications; determining calcium scores for at least one of the sub-regions determining relative severities for the calcium scores; assigning a different color to the different severities; generating a mapping between the relative severities and a surface of the subject specific cardiovascular anatomical model; and visually presenting the subject specific cardiovascular anatomical model, using the different colors assigned to the severities to identify the relative severities in corresponding sub-regions.