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Segmentation of the hippocampus from brain MRI using deformable contours

โœ Scribed by Amir Ghanei; Hamid Soltanian-Zadeh; Joe P. Windham

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
513 KB
Volume
22
Category
Article
ISSN
0895-6111

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โœฆ Synopsis

The application of a discrete dynamic contour model for segmentation of the hippocampus from brain MRI has been investigated. Solutions to several common problems of dynamic contours in this case and similar cases have been developed. A new method for extracting the discontinuous boundary of a structure with multiple edges near the structure has been developed. The method is based on detecting and following edges by external forces. The reliability of the final contour and the model stability have been improved by using a continuous mapping of the external energy and limiting movements of the contour. The problem of optimizing the internal force weight has been overcome by making it dependent on the amount of the external force. Finally, the results of applying the proposed algorithm, which implements the above modifications, to multiple applications have been evaluated.

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