Extraction of Handwriting Features in Tablet Shape Drawing for Developmental Screening
Ryota Mima, Yuichi Okada, Shunsuke Yoshitugu, Satomi Shimizu, Tomoko Yonezawa · 2024
In recent years, there has been an increasing demand for more easily accessible testing tools for developmental screening because the number of certified public psychologists and testing institutions is limited. To solve the problems, we have focused on drawing tests for screening and developed a tablet-type drawing data acquisition system to collect drawing data from young children. In this study, we investigate the relationship between developmental age and features extracted from stroke data in drawing. Specifically, based on the pen tip's position with each elapsed time from the test's start, we extracted each drawn figure's features, such as speed during drawing, for performing a multiple regression analysis using these features and living age in months as an explanatory variable and developmental age in months as the objective variable. As a result, we found that living age in months contributed the most to estimating developmental age in months.