An on-line handwriting character recognition algorithm. RAV (reparameterized angle variations)

A new algorithm RAV (Reparameterized Angle Variations) is proposed which makes explicit use of trajectory information where the time evolution of the pen coordinates plays a crucial role. The algorithm is extremely robust against stroke connections ("Tsuzukeji") as well as shape distortions ("Kuzushi-ji"). Preliminary experiments are reported on tests against the Kuchibue.d-96-02 data base from Tokyo University of Agriculture and Technology.