Augmented Reality (AR) in automotive applications will increase road safety...

Augmented reality (AR) technology in vehicles has been researched for several years now, e.g. [1,2,6,9,15]. This body of work has been shown that the use of AR has the ability to increase trust and safety in automated driving and foster comfort of driving.

With the emergence of the Microsoft HoloLens and similar AR technology, in-vehicle use of AR can now be researched more immersive [7]. This allows developers to explore human-machine interaction concepts more realistically using these AR devices in both lab as well as field studies. Advances in vehicle automation, such as the latest Audi A8 equipped with SAE Level 3 assistance, provide further use cases for AR applications to support work and entertainment related activities [8] or increase test in technology [15,9]. Time has come that researchers working in the field are asking how this technology can now be used with automated driving? There are, however, still a number of open issues to clarify prior to a broad application of AR technology in vehicles, e.g., questions addressing the use of head-mounted displays or the utilization of windshield displays (WSDs) [5]. Also, topics like context awareness, information relevancy as well as view and interaction management are research topics of interest. Furthermore, vehicle-to-vehicle or pedestrian-to-vehicle interaction gained lot of interest recently and should be further investigated in the light of AR (e.g., communication strategies in the exterior).

To sum up, technology for AR in driving is not yet technically mature for practical use in vehicles [3]. Challenges that need to be solved include accurate capturing and interpretation of road geometry through computing intensive sensor fusion, precise vehicle positioning, compensation for vibrations, delays, and jitter, laser projection, driver monitoring via inward facing cameras, implementation of sophisticated algorithms to create precise augmentation content in the driver's field of view, and others. A holistic understanding of AR use in driving is required in order to be able to address and solve these issues.