Charoenpong T, Tokai S, Hase H. Facial Expression Recognition from 2.5D Partial Face Data by Using Face Plane. ECTI-EEC [internet]. 2009 Jul. 7 [cited 2025 Apr. 27];8(1):32-4. available from: https://ph02.tci-thaijo.org/index.php/ECTI-EEC/article/view/171993