Hybrid approach to detection of the surgeon's hand motions during endoscope surgeryNõmm, Sven; Vain, Jüri; Petlenkov, Eduard; Miyawaki, Fujio; Yoshimitsu, KitaroICIEA : 4th IEEE Conference on Industrial Electronics and Applications : Xi'an, 25-27 May 20092009 / p. 3488-3492 https://ieeexplore.ieee.org/abstract/document/5138854