Segmentation of Magnetic Resonance Imaging Data

摘要

There is described herein an image segmentation technique using an iterative process. A contour, which begins with a single point that expands into a hollow shape, is iteratively deformed into a defined structure. As the contour is deformed, various constraints are applied to points along the contour to dictate its rate of change and direction of change are modified dynamically. The constraints may be modified after one or more iterations, at each point along the contour, in accordance with newly measured or determined data.

主权项

1. A computer-implemented method for segmenting magnetic resonance imaging (MRI) data, the method comprising:
determining an initial position on an image for a given structure; converting the initial position into an initial contour within the given structure; and iteratively deforming the initial contour to expand into a shape matching the given structure by dynamically applying a set of constraints locally to each point along the initial contour and updating the set of constraints after one or more iterations.