An Empirical Evaluation on Online Chinese Handwriting Databases

Several online Chinese handwriting databases have been proposed recently. Though they have been introduced in detail, to date, no one has ever evaluated these databases with experimental comparison. To help the researchers use the corresponding database properly for algorithm evaluation and real application, we compare the property of the handwriting characters in these databases, and evaluate them with the same experimental setup and handwriting recognizer. Moreover, we analyze the connection between the property and the corresponding recognition accuracy for the handwriting characters in different databases. These empirical evaluation results can help the researchers choose the right database for different algorithms and applications.