Two‐Finger Gestures for 6DOF Manipulation of 3D Objects

Abstract

Multitouch input devices afford effective solutions for 6DOF (six Degrees of Freedom) manipulation of 3D objects. Mainly focusing on large-size multitouch screens, existing solutions typically require at least three fingers and bimanual interaction for full 6DOF manipulation. However, single-hand, two-finger operations are preferred especially for portable multitouch devices (e.g., popular smartphones) to cause less hand occlusion and relieve the other hand for necessary tasks like holding the devices. Our key idea for full 6DOF control using only two contact fingers is to introduce two manipulation modes and two corresponding gestures by examining the moving characteristics of the two fingers, instead of the number of fingers or the directness of individual fingers as done in previous works. We solve the resulting binary classification problem using a learning-based approach. Our pilot experiment shows that with only two contact fingers and typically unimanual interaction, our technique is comparable to or even better than the state-of-the-art techniques.

EZ-Manipulator: Designing a mobile, fast, and ambiguity-free 3D manipulation interface using smartphones

“…Motivated by the rapid development of mobile devices with multi-touch interfaces, a huge body of work has been proposed to adapt tactile paradigms to 3D manipulation [12][13][14][15][16][17][18][19][20][21][22]. Amongst existing systems, indirect manipulation techniques [17,18] that disassociate the transformations from visual widgets have been shown to be easier to use than direct ones [20,21].…”

Interactive Exploration of Three-Dimensional Scientific Visualizations on Large Display Surfaces

“…Users can seamlessly switch between these two modalities by either moving both fingers at the same time or by leaving one finger static on the tactile surface. Similar to Reisman et al's [66] approach, this technique allows Liu et al [59] 6 Widget-based 3D navigation using FI3D, using different mappings on the man data view and on the FI3D frame. Image from [90], © IEEE, used by permission.…”

“…In our discussion we, on purpose and with only a few exceptions [6,59], did not mention the use of gestural interaction techniques-it turns out that almost all published interaction techniques rely on interaction mappings that are clearly specified based on the location of input points with respect to the data or interaction widgets. Such posture-based interaction [42] has the benefit that any input point motion can directly be interpreted as data manipulations.…”

“…An alternative interaction mapping was designed by Liu et al [59] who integrate both the 4DOF x-/y-/z-translation plus z-rotation with the 2DOF x-/y-rotation. Users can seamlessly switch between these two modalities by either moving both fingers at the same time or by leaving one finger static on the tactile surface.…”

A study on improving close and distant device movement pose manipulation for hand-held augmented reality

“…The 2D screen of a hand-held device, however, cannot provide full direct 3D manipulation. Therefore, touch gestures are used to provide manipulation metaphors (see for example [Reisman et al 2009] [Hancock et al 2009] [Martinet et al 2012] [Liu et al 2012]. …”