Vegetation inventory requirements include delineation, mapping and tabulation of major vegetation communities, cover sampling of vegetation communities, species lists, shrub density determinations, and tree counts.
As expected, the incorporation of the delineation maps with demons' method enables to increase the DSC, especially for the organs used in the delineation maps (e.g., PGs).
For all the LMs, all method errors except the "demons with MSE on delineation maps" were statistically inferior to the rigid registration errors (P < 0.01).
Considering only the PGs, the "demons with MSE on delineation maps" DSC values were higher than the DSC values of all other methods (P < 0.01).
In order to focus the registration process on the considered organs, delineation maps were also generated, representing the main delineations (skin, left, and right parotid glands, spinal cord, and brain stem) with homogeneous intensities.
The red line represents the DVH of the "demon with MSE on delineation maps" method that has an overall average accuracy (precision) of 1.89 mm (2.14 mm) and an average DSC of 0.92 for the parotid glands.
The "demons with MI on filtered CTs" DSC was superior to all DSC methods with MSE on original CTs (P ≤ 0.05), except the "demons with MSE on delineation maps" method.
Considering all the anatomical structures, the three methods corresponding to the maximum DSC were the "demons with MSE on delineation maps," the "FFD with MI on filtered CTs" and the "demons with MI on filtered CTs".
The "FFD with MI on filtered CTs" DSC values were higher than the DSC values of all other methods (P ≤ 0.01), except the "demons with MSE on delineation maps" method.
