1. A method for generating a model of a structure using scan data from a plurality of subjects, the method comprising: collecting a set of scan data comprising scan data of the part of the anatomy for each of the plurality of subjects; applying a feature detector to each item in the set of scan data to generate a set of feature data; converting each item in the set of the feature data into a common reference system to generate a set of transformed data; accumulating each item in the set of transformed data to generate a model of the structure representing a plurality of subjects; and selecting structural features defining said model by optimizing the spatial correspondence of the features between images in said set of feature data.