Evaluation of Correlation between Psychomotor Vigilance Task Scores and Drowsiness Estimation Levels Obtained from Facial Videos. - Terumi Umematsu; Masanori Tsujikawa; Kazuki Inagaki; Yuta Shimizu; Koyo Shibata; Kohei Hijikata; Hiroshi Nakano; Takeshi Tanigawa (EMBC, 2023)