1,731 views 0 comments

On growth and success

A person’s success in life can usually be measured by the number of uncomfortable conversations he or she are willing to have.”

1,915 views 0 comments

On Getting Better

If you donʼt look at things from a realistic point of view and admit that things are not as good as they can be, they wonʼt get better.”


Good to Great: Why Some Companies Make the Leap… and Others Don’t
13,799 views 1 comments

NodeBeat: Generative Music Sequencer

A collaboration between Justin Windle, Laurence Muller and myself, NodeBeat is an experimental node-based audio sequencer and generative music application for the iPhone, iPod Touch, iPad, Android, and Playbook. By combining music and exploration, NodeBeat allows anyone to create a variety of rhythmic sequences and ambient melodies in a fun and intuitive fashion.
7,391 views 2 comments

Multi-touch Biggie

A Multitouch Biggie, MTbiggie for short, is a low-cost multitouch table. I created the Multitouch Biggie to show people how something that seems complicated or 'magical' can be made simply and at low cost. The MTbiggie has been featured in several online publications.
108,333 views 236 comments

Multitouch Biggie (MTbiggie) – How To

What’s a Multitouch Biggie (MTbiggie)?

A Multitouch Biggie, MTbiggie for short, is a low-cost multitouch table. It can be used for a variety of purposes including: drawing, OS navigation, games, entertainment and more.

I created the Multitouch Biggie to show people how something that seems complicated or ‘magical’ can be made simply and at low cost.

The MTbiggie uses the “Front Diffused Illumination” multitouch technique, with ambient infrared light and a DIY infrared webcam. The MTbiggie is similar to the MTmini, but includes a projected image and infrared webcam (rather than a normal webcam).

The MTbiggie isn’t the most stable and robust setup, but it is the easiest to build. To see other methods of building

21,659 views 16 comments

The Ultimate List of Interactive Tables

The following is a timeline of interactive tables. These tables may involve multi-touch, single-touch, audio, objects, or other unique types of table interactions.

If you have an interactive table that is not on the list, please leave a comment or send me a message and I will update the list appropriately.

note: I cannot promise the following links are current and that the dates and names for each table is accurate. If you see a mistake, please let me know.


Total Count: 95 interactive tables and counting
Last Updated: 2/16/11

1998

1999

2000

11,604 views 11 comments

LED Light Plane Multitouch Technique

LED-LP is similar to LLP in that a plane of light is created above the surface. Instead of using lasers like LLP, narrow angle LEDs are used. The LEDs are positioned just above the touch surface in order to create a plane of light. When a finger or object touches the light plane, it is illuminated and seen by a infrared camera below the surface.

ledlp

Parts List

  • Clear, Flat Surface (Glass, Acrylic, Polycarbonate, Plexiglass, etc.)
  • Infrared LEDs – Placed slightly above the surface on each side to create a plane of light
  • Projection Material (Rosco Grey, Vellum, Mylar, Paper, other, etc.) – For displaying an image when using a projector
  • Infrared Camera/Modified Webcam

Video Examples

[youtube=http://www.youtube.com/watch?v=KxrU2lE22p8]

[youtube=http://www.youtube.com/watch?v=ysq3XAsKcuE]

11,062 views 13 comments

Diffused Surface Illumination

DSI is similar to FTIR in that infrared light is placed at the edges of an acrylic panel directed towards the inside. A special acrylic with small particles inside, acting like thousands of small mirrors, is used to evenly distribute the infrared light. When a finger or object touches the diffuser, it lights up from the infrared light escaping from within and is seen by a camera below the surface. The effect is similar to diffused illumination. An image is displayed by using a projector connected to a computer pointed towards the projection material.

DSI

Parts List

  • EndLighten Acrylic
  • Infrared Light Source (LEDs or similar)
  • Projection Material (Rosco Grey, Vellum, Mylar, Paper, other, etc.) – For displaying an image and scattering
19,609 views 10 comments

Laser Light Plane Multitouch Technique

In LLP, infrared light from single or multiple lasers shine just above the surface. The laser plane of light is about 1mm thick and positioned as close to the touch surface as possible. When a finger or object hits the light plane, the object lights up and  is seen by an infrared camera below the surface. An image is displayed by using a projector connected to a computer pointed towards the projection material.

llp

Parts List

  • Clear, Flat Surface (Glass, Acrylic, Polycarbonate, Plexiglass, etc.)
  • Infrared Laser(s) – Lasers can be placed in each corner of the surface
  • Line Generating Lens – Creates a thin light plane
  • Projection Material (Rosco Grey, Vellum, Mylar, Paper, other, etc.) – For displaying an image
  • Infrared
15,029 views 21 comments

Front Diffused Illumination Multitouch Technique

In Front DI, infrared light is shined at the screen from above the touch surface. A diffuser is placed on top (preferred) or on bottom of the touch surface.  When a finger or object touches the surface, a shadow is created under the object and seen by an infrared camera below the surface. This method is what the MTmini uses, but without the need for infrared light (since there is no visual display to remove). The MTbiggie also uses this technique. An image is displayed by using a projector connected to a computer pointed towards the projection material.

FDI

Parts List

  • Clear, Sturdy Surface (Glass, Acrylic, Polycarbonate, Plexiglas, etc.)
  • Infrared Lighting (The Sun, Infrared LEDs, Infrared Illuminator, Ambient Light/Lamps, etc.)
  • Diffuser/Projection
-->