Fig. 2
From: Augmented reality guidance improves accuracy of orthopedic drilling procedures
Drilling procedure using AR guidance. The log and drill are tracked by infrared-reflective marker spheres, providing the spatial position and orientation of the log’s planned guidance vectors (in faded red) and the drill. (A) When the drill was approximated to the selected guidance vector, but aligned outside the 4° threshold, the vector would light up red. (B) When alignment was between 2° and 4° it would turn orange and (C) under 2° it would turn green. (D) During drilling the vector’s color continued to indicate the drill alignment, while drill tip advancement inside the log could be monitored through a virtual white sphere displayed at the drill tip, that progressed along the virtual trajectory as the drill advanced.
