Figure 16

Experimental results on 3D cone beam CT image of Rat-abdomen. Three slices from different positions of the 3D volume (Slice # 401, 601, and 801) have been shown in this figure. The top two rows correspond to the slice # 401, the middle two rows correspond to the slice # 601 and the bottom two rows correspond to the slice # 801. The first column of the images show the original corrupted slices (a,i,q) and their corresponding ROIs (e,m,u). The second column shows the corrected slices obtained by the 2D VWMA/WMA [15](b,j,r) and their corresponding ROIs (f,n,v). The third column shows the corrected slices obtained by the RCP [11](c,k,s) and their corresponding ROIs (g,o,w). The fourth column shows the corrected slices obtained by the proposed technique (d,l,t) and their corresponding ROIs (h,p,x). (C/W = 0.702/0.594 (s#401), C/W = 0.622/0.755 (s#601), and C/W = 0.692/0.615 (s#801)). The residual rings in the corrected images are marked by arrows.