Fig. 1
From: Improved precision of noise estimation in CT with a volume-based approach

Flow chart of the steps to determine the ground truth noise and the isocenter for the measurements. ROI, region of interest; VOI, volume of interest
From: Improved precision of noise estimation in CT with a volume-based approach
Flow chart of the steps to determine the ground truth noise and the isocenter for the measurements. ROI, region of interest; VOI, volume of interest