Hand Occlusion on a Multi-Touch Tabletop

Daniel Vogel 1 Géry Casiez 2, 3
2 MINT2 - Méthodes et outils pour l'Interaction à gestes
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Abstract : We examine the shape of hand and forearm occlusion on a multi-touch table for different touch contact types and tasks. Individuals have characteristic occlusion shapes, but with commonalities across tasks, postures, and handedness. Based on this, we create templates for designers to justify occlusion-related decisions and we propose geometric models capturing the shape of occlusion. A model using diffused illumination captures performed well when augmented with a forearm rectangle, as did a modified circle and rectangle model with ellipse "fingers" suitable when only X-Y contact positions are available. Finally, we describe the corpus of detailed multi-touch input data we generated which is available to the community.
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Conference papers
CHI'12, the 30th Conference on Human Factors in Computing Systems, May 2012, Austin, United States. ACM, pp.2307-2316, 2012, 〈10.1145/2207676.2208390〉
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Daniel Vogel, Géry Casiez. Hand Occlusion on a Multi-Touch Tabletop. CHI'12, the 30th Conference on Human Factors in Computing Systems, May 2012, Austin, United States. ACM, pp.2307-2316, 2012, 〈10.1145/2207676.2208390〉. 〈hal-00670516〉

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