IPPG BP Estimation Model Considering Hydrostatic Pressure. - Keita Hirano; Keisuke Terai; Yuki Nagatsu; Hideki Hashimoto (LifeTech, 2022)

Near-infrared iPPG body motion compensation using head Euler angles during sleep. - Keisuke Terai; Takashi Ohhira; Hideki Hashimoto (SII, 2023)