Graphical shape templates for automatic anatomy detection with applications to MRI brain scans

A new method of model registration is proposed using graphical templates, A decomposable graph of landmarks is chosen in the template image. All possible candidates for these landmarks are found in the data image using robust relational local operators, A dynamic programming algorithm on the template graph finds the optimal match to a subset of the candidate points in polynomial time. This combination-local operators to describe points of interest/landmarks and a graph to describe their geometric arrangement in the plane-yields fast and precise matches of the model to the data with no initialization required, In addition, it provides a generic tool box for modeling shape in a variety of applications, This methodology is applied in the context of T2-weighted magnetic resonance (MR) axial and sagittal images of the brain to identify specific anatomies.