Computational Vision and Medical Image Processing IV

414

all histomorphometric parameters. To verify this

fact, we applied a paired t-test on the μCT images

segmented by the three methods. The results pre-

sented in Table 2 showed that for the L3 vertebra,

OTH and MTH were able to distinguish adult and

young groups with four histomorphometric param-

eters, whereas DTH could distinguish only with

three parameters. When considering L4 vertebra,

the t-test showed that OTH and DTH could differ-

entiate both the groups with two parameters, while

MTH could not find any difference. Thus, accord-

ing to these results, OTH has the best perform-

ance in distinguishing young and adult vertebra.

Additionally, it is important to take into account

that MTH is an operator-dependent method, and

hence, the results ...