Fig. 14
Example of low to no contrast entities. (a) Shows a slice from sub-volume V6 (2072,7168,0) (see Fig. 11(c)) containing two metal sheets riveted together. No appreciable grey value and texture differences between the two components can be determined. (b) Possible manual annotation of the left (light green 
) and right (orange 
) metal sheets. (c) Grey value plot along the green dashed section marked in (a). The background colors indicate the possible annotation into semantic segments.
