Predictive DP Matching for On-Line Character Recognition
D. Baba, Seiichi Uchida, Hiroaki Sakoe · Proceedings of the International Conference on Document Analysis and Recognition · 2007
For on-line character recognition, predictive DP match- ing is proposed where two physically different features, co- ordinate features and directional features, are handled in a unified manner. For this unification, the distance of the directional features is converted into a distance of the co- ordinate features by a feature prediction technique. An ex- perimental result showed that the predictive DP matching could attain a recognition rate comparable to the rate by the conventional DP matching which requires the costly op- timization of the weight to balance the two features.