Full Paper

Mobile Pointing Task in the Physical World: Balancing Focus and Performance while Disambiguating
William Delamare, Université Joseph Fourier Grenoble 1, France
Céline Coutrix, Université Joseph Fourier Grenoble 1, France
Laurence Nigay, Université Joseph Fourier Grenoble 1, France
Time: Wed 14:48 - 15:12 | Session: Select and Interact | Location: D 209

We address the problem of mobile distal selection of physical objects when pointing at them in augmented environments. We focus on the disambiguation step needed when several objects are selected with a rough pointing gesture. A usual disambiguation technique forces the users to switch their focus from the physical world to a list displayed on a handheld device’s screen. In this paper, we explore the balance between change of users’ focus and performance. We present two novel interaction techniques allowing the users to maintain their focus in the physical world. Both use a cycling mechanism, respectively performed with a wrist rolling gesture for P2Roll or with a finger sliding gesture for P2Slide. A user experiment showed that keeping users’ focus in the physical world outperforms techniques that require the users to switch their focus to a digital representation distant from the physical objects, when disambiguating up to 8 objects.

MobileHCI 2013 Proceedings in the ACM Digital Library.

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