Improvement of Personal Identification by Flick Input with Acceleration Sensor

Flick input is usual input method on touch panels of smartphones. Inputted characters are decided by a touched place on the screen and by a moving direction from the place. There is a research by Terabayashi et al. In which users are identified with characteristics of flick input of them. Kobata et al. Improve the identification method by using 3D acceleration sensor. However, they use the acceleration sensor to acquire posture of users. In this paper, we improve the method by using 3D acceleration sensor to increase accuracy of personal identification.