An example method for feature extraction includes receiving a selection of a point from a plurality of points, the plurality of points representing an object. The method further includes identifying a feature of interest for the object based at least in part on the point. The method further includes performing edge extraction on the feature of interest. The method further includes performing pre-processing on results of the edge extraction. The method further includes classifying the feature of interest based at least in part on results of the pre-processing. The method further includes constructing, based at least in part on results of the classifying, a geometric primitive or mathematical function that has a best fit to a set of points from the plurality of points associated with the feature of interest. The method further includes generating a graphical representation of the feature of interest using the geometric primitive or mathematical function.