Augmented Reality (AR) using a Head-Mounted Display (HMD) such as Microsoft HoloLens 2 has become a popular guidance platform for industrial work tasks: operators get visual support depending on where they are in the assembly process. We are ourselves involved in research on this topic. However, using explicit visual information such as arrows or pictures on top of the real world can be cognitively demanding and potentially not safe for the user because it obstructs his or her view. Therefore we consider subtle (barely noticeable) guidance as an option.
One problem with subtle visual guidance on AR platforms is the need for adapting intensity of subtle stimuli due to changing light conditions. This project will therefore experiment with stimuli design on VR platform instead, where light intensity can be kept constant.