Talaria

Abstract

We present an interaction technique combining tactile actions and Midair pointing to access out-of-reach content on large displays without the need to walk across the display. Users can start through a Touch gesture on the display surface and finish Midair by pointing to push content away or inversely to retrieve a content. The technique takes advantage of wellknown semantics of pointing in human-to-human interaction. These, coupled with the semantics of proximal relations and deictic proxemics make the proposed technique very powerful as it leverages on well-understood human-human interaction modalities. Experimental results show this technique to outperform direct tactile interaction on dragging tasks. From our experience we derive four guidelines for interaction with large-scale displays.

SurfAirs: Surface + Mid-air Input for Large Vertical Displays

“…Like the Pointable technique [4] for tabletops or the MirrorTouch public display [47], the wall display in Jakobsen et al's studies does not integrate touch and mid-air input. Users can rely on either touch or mid-air, but they cannot, for instance, initiate a movement with a sliding gesture on the surface and continue with that same movement in the air like the Talaria technique does [54].…”

“…Although this first study does not involve input on the surface itself, our ultimate goal, which we test in the following study, is to support hybrid input. Bare-hand input is therefore the most relevant baseline to consider as it is the only single-handed input technique in the literature that allows for both surface and mid-air interaction while also enabling smooth transitions between those two [54].…”

“…They then release control by releasing the switch. With Flick, participants must perform a flick gesture (i.e., accelerating the movement as in [54]) when they leave the surface to continue with the ongoing interaction in the air. The flick can be performed with the switch either on or off.…”