Augmented Reality (AR) has shown great potential for improving human performance in Maintenance, Repair, and tom-of-finland Overhaul (MRO) operations.Whilst most studies are currently being carried out at an academic level, the research is still in its infancy due to limitations in three main aspects: limited hardware capabilities, the robustness of object recognition, and content-related issues.This article focuses on the last point, by proposing a new geometry-based method for creating a step-by-step AR procedure for maintenance activities.The Fast Augmented Reality Authoring (FARA) method assumes that AR can recognise and track all the objects in a maintenance environment when CAD models Croped t-shirt are available, to knowledge transfer to a non-expert maintainer.The novelty here lies in the fact that FARA is a human-centric method for authoring animation-based procedures with minimal programming skills and the manual effort required.
FARA has been demonstrated, as a software unit, in an AR system composed of commercially available solutions and tested with over 30 participants.The results show an average time saving of 34.7% (min 24.7%; max 55.3%) and an error reduction of 68.
6% when compared to the utilisation of traditional hard-copy manuals.Comparisons are also drawn from performances of similar AR applications to illustrate the benefits of procedures created utilising FARA.