Patent ID: 8855394

Claim:
A method for digital radiographic 3-D volume image processing of a subject, the method executed at least in part on a computer, the method comprising: obtaining a plurality of 2-D digital projection images, the plurality of 2-D digital projection images exposed over a range of scan angles; filtering the plurality of 2-D digital projection images using a first combination of filters to generate a first set of filtered projection images; filtering the plurality of 2-D digital projection images using a second combination of filters to generate a second set of filtered projection images, wherein the first combination of filters are different from the second combination of filters and wherein the plurality of 2-D digital projection images that are filtered by the first combination and the second combination of filters are the same 2-D digital projection images; reconstructing a first 3-D volume image of the subject from the first set of filtered projection images and reconstructing a second 3-D volume image of the subject from the second set of filtered projection images; segmenting the first 3-D volume image of the subject to generate a mask; combining the first 3-D volume image of the subject and the second 3-D volume image of the subject based on the mask to generate a final 3-D volume image of the subject; and displaying a cross sectional slice from the final 3-D volume image of the subject.