RENCI Vis Group Multi-Touch Blog

Developing multitouch hardware and applications for research and experimentation.

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Month: September, 2008

Duke Multi-Touch Wall Development - Hardware Part 2

September 22, 2008 (16:24) | Duke Multi-Touch Wall | No comments

Cameras
The touch detection for our direct illumination (DI) wall is based on the GC660 GigE camera from Prosilica. At VGA resolution (659 x 493), each GC660 can capture images up to 120 fps. Eight (8) of these cameras are connected via a network switch to capture the entire 13.5-foot wide x 5-foot tall screen. Each [...]

Duke Multi-touch Wall Development - Hardware Part 1

September 15, 2008 (11:00) | Duke Multi-Touch Wall | No comments

RENCI‚Äôs initial foray into this area of research has taken the form of the 13.5-foot wide x 5-foot tall multi-touch visualization wall that was installed at the RENCI Duke Engagement Center in the beginning of May 2008. The wall sits at the end of the Engagement Center’s primary collaboration space:

This 6-projector (2 tall x 3 [...]

Introduction to Multi-Touch

September 1, 2008 (17:32) | Multi-Touch | 5 comments

The multi-touch interface allows a user to interact with an application or system using more than one finger at a time, as in chording and bi-manual operations. In addition to multiple touches, such sensing devices can also accommodate multiple users simultaneously, which is especially useful for larger shared-display systems such as interactive walls and tabletops.
By [...]