Automatic segmentation of hippocampus from brain MRI using deformable contours
The application of deformable contours for segmentation of the hippocampus has been investigated. Common problems of dynamic contours in this case and cases like this have been discussed and solved. A new method for extracting the discontinuous boundary of a structure with multiple unwanted edges near it has been developed. The method is based on detecting and following the edge by external forces. The final oscillation of the contour has been remedied by using interpolation of external energy and limiting the movements of the contour. Also, the problem of optimizing the weights has been overcome by making them dependent on the amount of forces.