I-Grabber: expanding physical reach in a large-display tabletop environment through the use of a virtual grabber

ABSTRACT

While working on large tabletop interfaces, reaching and manipulating objects beyond the physical reach of a user can be considerably vexing. In order to reach such an object, a user may have to physically move to the object's location. Alternatively, a user could attempt to reach for the object from his/her current location, but the territory of other users may become obstructed as a result. We propose a multi-touch interaction technique which enables users to easily select and manipulate objects that are beyond their physical reach. Our technique provides direct visual feedback to users, which allows them to be aware of their current active location. Using a controllable "interactive grabber" (I-Grabber) as a virtual hand extension, users can reach and manipulate any object from their current location.

References

1. Baudisch, P., Cutrell, E., Robbins, D., Czerwinski, M., Tandler, P. Bederson, B., and Zierlinger. A. Drag-and-Pop and Drag-and-Pick: Techniques for Accessing Remote Screen Content on Touch and Pen-operated Systems. In Proc. Interact 2003, pp. 57--64
2. Bezerianos, A. and Balakrishnan, R. The vacuum: facilitating the manipulation of distant objects, Proc. CHI 2005, 361--370.
3. Collomb, M., Hascoët, M., Baudisch, P., and Lee, B. 2005. Improving drag-and-drop on wall-size displays. In Proceedings of Graphics interface 2005. GI, vol. 112. Canadian Human-Computer Communications Society, School of Computer Science, University of Waterloo, Waterloo, Ontario, 25--32.
4. Forlines, C., Wigdor, D., Shen, C., and Balakrishnan, R. 2007. Direct-touch vs. mouse input for tabletop displays. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems. CHI '07. ACM, New York, NY, 647--656.
5. Hascoët, M. Throwing models for large displays. In Proc. of HCI '2003, British HCI Group, 73--77
6. Lee, H., Jeong, H., Lee, J., Yeom, K., Shin, H., and Park, J. 2008. Select-and-point: a novel interface for multi-device connection and control based on simple hand gestures. In CHI '08 Extended Abstracts on Human Factors in Computing Systems. CHI '08. ACM, New York, NY, 3357--3362.
7. Nacenta, M. A., Aliakseyeu, D., Subramanian, S., and Gutwin, C. 2005. A comparison of techniques for multi-display reaching. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems. CHI '05. ACM, New York, NY, 371--380.
8. Parker, J. K., Mandryk, R. L., and Inkpen, K. M. 2006. Integrating Point and Touch for Interaction with Digital Tabletop Displays. IEEE Comput. Graph. Appl. 26, 5, 28--35.
9. Scott, S. D., Sheelagh, M., Carpendale, T., and Inkpen, K. M. 2004. Territoriality in collaborative tabletop workspaces. In Proceedings of the 2004 ACM Conference on Computer Supported Cooperative Work (Chicago, Illinois, USA, November 06--10, 2004). CSCW '04. ACM, New York, NY, 294--303.

Index Terms

• Human-centered computing

  • Human computer interaction (HCI)