An improved method of computing geometrical potential force (GPF) employed in the segmentation of 3D and 4D medical images

摘要

The geometric potential force (GPF) used in segmentation of medical images is in general a robust method. However, calculation of the GPF is often time consuming and slow. In the present work, we propose several methods for improving the GPF calculation and evaluate their efficiency against the original method. Among different methods investigated, the procedure that combines Riesz transform and integration by part provides the fastest solution. Both static and dynamic images have been employed to demonstrate the efficacy of the proposed methods.