This package implements feature extraction including Rubine's list of features given in [1]. Feature extraction means calculating a particular scalar characteristic (e.g. aspect ratio) of a stroke. AreaRatioFE, CornerFE, and SumOfAbsDeltaRatioFE are features that we added on top of Rubine's features.

[1] "Specifying Gestures by Example", Dean Rubine, Computer Graphics, Volume25, Number4, July 1991.