More on Window Treatments

This afternoon we decided to calibrate our camera and make a camera calibration file in order to see if this would improve the tracking ability of the camera while running DART. We made the file but realized it is probably compatible with ARToolKit only and needs to be rewritten specifically for DART. I compared the results of the 6 different glass treatments and their practicality as the basis for our TUI tabletop. The treatment that had the highest projection “stickiness” was simply the white spray paint on the top of the glass. However, its durability is not practical, not even if it were sprayed on the bottom of the tabletop glass where marker visibility would be impossible due to additional light diffusion through the 1/4” glass. Durability was an issue with some of the other treatments as well even though they showed signs of high clarity for viewing marker patterns through the glass. The sandblasted section seemed the best treatment overall but the optical characteristics of its surface are easily altered by oils and perspiration filling blasted gouges in the glass. A treatment will be attempted using oil-based paint over sandblasted glass to try to fill the gouges with white pigment (increasing projection “stickiness”) and keep the paint from being easily scraped off the glass (increasing durability). Met with Scott.