In this section, we describe volumetric segmentation methods that will later be compared numerically. Some of these have been implemented in commercial packages such as Mayo Clinic's Analyze software [l9] and MEDx image-processing software (Sensor Systems, Sterling, VA). Here our goal is to present a representative sample of available intensity-based segmentation methods for MR images. Greater detail is provided in describing the more recently developed techniques. For additional surveys on medical image segmentation, in particular MR image segmentation, the reader should refer to [20-24].
Was this article helpful?