During the holidays, based on the Natural User Interface Group (NUI Group) community forums, we have started to experiment different technologies for a surface table. At his time we didn't knew what should be the theme of our project, but we wanted to use a surface table.
First try (Touch PAD):
A multi touch pad using a webcam, a cardboard box, a piece of glass, paper and lots of tape.
Difficult to calibrate but we realize that it was possible to do a surface table out of this.
Second try (Front Diffuse Illumination):
A table made of 2 easel, a big piece of acrylic, a projector, webcam, diffuser (paper or a plastic towel) and a mirror.
Really hard to control the IR surrounding light, we just knew that we must try a different approach.
Third try (Rear Diffuse Illumination):
An enclosure box, diffuser, mirror, PS3eye cam and glass. No IR light at the moment...
On the cam (PS3eye) we managed to remove the IR filter, a big difference, clear improvement on blobs detection.
But even so it was not enough, so, in early March we decided to order 4x48 IR LED projectors.
While waiting for the IR projectors, we finished the enclosure box building and tested different kinds of diffusers (normal paper, tracing paper, translucid plastic towel and white plastic kitchen towel).
This moning (11th of March) the IR projectors finally arrived!
We are willing to test it on the box set :)
Expect more updates soon.
