Biomedical Engineering Reference
In-Depth Information
Figure 5.
Comparison of manual- and algorithm-outlined boundaries for three categories:
(a,d) easy; (b,e) moderate; (c,f) difficult. Reprinted with permission from the AAPM.
and (c) difficult categories, whereas the right-hand column gives corresponding
algorithm-outlined boundaries in the (d) easy, (e) moderate, and (f) difficult cate-
gories for the same images. For these particular images, editing operations were
required at the locations indicated by the arrows and are in or near areas of shadow.
Furthermore, the time to segment an image increased as the difficulty increased,
