Augmented Reality for Head and Neck Carcinoma Imaging: Description and Feasibility of an Instant Calibration, Markerless Approach. - Christina Gsaxner; Antonio Pepe 003; Jianning Li 002; Una Ibrahimpasic; Jürgen Wallner; Dieter Schmalstieg; Jan Egger (Comput. Methods Programs Biomed., 2021)