Double Pressure Presentation for Calligraphy Self-training

The goal of this research is to develop a self-training system of brushwork of calligraphy. In order to draw a well-shaped character, it is required to move the brush properly. In the developed system, the student's brushwork is measured by Leapmotion sensor, and if the handwriting is not proper, the student's wrist is stimulated. Not only when the brush goes out from the reference trajectory but also when the brush is expected to overrun the proper end-position during one horizontal stroke, the pressure presentation device stimulates the student's wrist as an instruction of its handwriting. Experiments with three subjects were carried out, and it was confirmed that the developed system became a more effective device for self-training instruction of calligraphy.