Measurement of JND Thresholds and Riemannian Geometry in Facial Expression Space. - Runa Sumiya; Reiner Lenz; Jinhui Chao (HCI (1), 2018)

Transform Facial Expression Space to Euclidean Space Using Riemann Normal Coordinates and Its Applications. - Runa Sumiya; Jinhui Chao (HCI (2), 2019)