Biomedical Engineering Reference
In-Depth Information
(a)
(b)
(c)
(d)
Figure 6.23:
Sample results using multiscale texture segmentation. (a) Syn-
thetic texture image. (b) Segmentation result for image (a) with a 2-class label-
ing. (c) MRI T1 image of a human brain. (d) Segmentation result for image (c)
with a 4-class labeling.
edge detector itself can then fulfill the requirement of segmentation. On the
other hand, many segmentation techniques require an estimation of object edges
for their initialization. For example, with standard gradient-based deformable
models, an edge map is used to determine where the deforming interface must
stop. In this case, the final result of the segmentation method depends heavily on
the accuracy and completeness of the initial edge map. Although many research
works have made some efforts to eliminate this type of interdependency by
