ペンの上げ下げ情報に基づく簡易なオンライン筆記者識別

抄録

This paper describes a simple method to verify handwriting mainly based on up-down pen movements of writing process. Many schemes have been proposed for on-line handwriting verification, and it is known that reliable recognition can be reached if we use various kinds of information such as the velocity and acceleration signals of a pen, the force on pen tip and the gripping force of a pen, and so on. Special devices, however, are required to obtain these data. For practical use, it is desirable to use data which can be obtained easily by simple tools like a touching panel. Therefore, the authors have considered trustworthy handwriting verification using as less data as possible. As the result, high recognition ratio was obtained by the use of timing of pen-up and pen-down, and directions of first and last movements of each stroke of Kanji characters representing one's family name. Practical and reliable person verification can be realized by the use of both this method and other simple verification information such as identification number.