Abstract : With the increased availability of sensor-based data, data analysis lies at the heart of various needs, such as energy monitoring, and augmented mainte-nance. Presenting digital data in the context of their physical referents is now feasible thanks to AR Optical See-Through Head-Mounted displays (HMDs). However, although the display space with such HMDs is almost unlimited, their field of view (FoV) is still small: as a result, the surrounding physical referents are often positioned around the HMD FoV and cannot always be pointed at or interacted with to trigger the data display. Therefore, we designed and evaluated a set of techniques to point at objects in the User’s Field of Vision but out of the HMD FoV, thus limiting head movements. Our techniques are all based on show-ing, at the bottom of the HMD FoV, a focus view presenting the area centered on the ray’s impact point. We experimentally compared our techniques to moving the head and pointing at the target within the HMD FoV, for targets distributed on a horizontal or vertical surface. Our study shows that users perform better with our techniques when pointing at targets on a horizontal surface and perform sim-ilarly than the baseline technique on a vertical surface. We analyze the results and envision perspectives for around-FOV pointing.

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