![]() ![]() ![]() Scoditti, A., Vincent, T., Coutaz, J., Blanch, R., Mandran, N.: TouchOver: decoupling positioning from selection on touch-based handheld devices. Hancock, M., Hilliges, O., Collins, C., Baur, D., Carpendale, S.: Exploring tangible and direct touch interfaces for manipulating 2D and 3D information on a digital table. 173–180 (2012)įrancone, J., Bailly, G., Lecolinet, E., Mandran, N., Nigay, L.: Wavelet Menus on Handheld Devices: Stacking Metaphor for Novice Mode and Eyes-Free Selection for Expert Mode. 61–70 (2004)ĭe Araùjo, B.R., Casiez, G., Jorge, J.A.: Mockup builder: direct 3D modeling on and above the surface in a continuous interaction space. Grossman, T., Wigdor, D., Balakrishnan, R.: Multi-finger gestural interaction with 3d volumetric displays. 115–118 (2010)Ĭohé, A., Decle, F., Hachet, M.: tBox: A 3D Transformation Widget designed for Touch-screens. Martinet, A., Casiez, G., Grisoni, L.: The design and evaluation of 3d positioning techniques for multi-touch displays. Kruger, R., Carpendale, S., Scott, S.D., Tang, A.: Fluid integration of rotation and translation. Hancock, M., Carpendale, S., Cockburn, A.: Shallow-depth 3d interaction: design and evaluation of one-, two-and three-touch techniques. Martin, J.R., Zatsiorsky, V.M., Latash, M.L.: Multi-finger interaction during involuntary and voluntary single finger force changes. Santello, M., Flanders, M., Soechting, J.F.: Postural hand synergies for tool use. Through another experiment, we analyze how gestures and tasks are associated, which enable us to discover some principles for designing 3D interactions on tabletop. A first experiment shows that the dominant hand is able to perform movements that can be parameterized by 4 to 6 DoF, and no more (i.e., at most 3 fingers can be controlled independently). With a new hand parameterization, we investigate the number of DoF that one hand can effectively control on a multi-touch surface. This leads to a theoretical upper bound of 10 DoF for a single-handed interaction. ![]() Multi-touch surfaces are good candidates as input devices for those interactions: they provide a direct manipulation where each finger contact on the table controls 2 DoF. For instance, docking a virtual object involves 6 DoF (position and orientation). Interactively creating and editing 3D content requires the manipulation of many degrees of freedom (DoF). ![]()
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