Author Topic: First trial: ideal distance Wiimote <-> size screen  (Read 15347 times)

Offline sts70nl

  • *
  • Posts: 8
  • Karma: +1/-0
    • View Profile
Have a rule of thumb to quickly setup the Wiimote for use with a beamer and whiteboard.

Consistent and very optimal tracking on a white board

The more angles, the more skewed and the less optimal the tracking

- no beamer (haven't got one to play around with)
- real whiteboard
- Wiimote
- Boonjin's 0.2.2 beta
- Living room (daylight)

The Wiimote has a 90 degree angle on the whiteboard, however it is slightly angled upward (see picture attached).

- Start the calibration procedure
- Trial & error to find the maximum view of the Wiimote camera
- Repeat until the maximum area is found

     d   WT   WB   HL   HRresolution    W:H
104cm      78cm      77cm      53cm     47cm       114%  3.1:2
  50cm 36cm34cm 25cm 25cm  120%  2.8:2

  • - width / height ratio of the Wiimote is 3:2
  • - distance and height seem to have an easy ratio

The distance of the Wiimote to the whiteboard follows: d = 2*H
Where (d) is the distance Wiimote to whiteboard, and (H) = projected height

It would be very nice to get additional measurements as well to get a good rule of thumb.  For instance, I couldn't use a beamer (was not required for I was looking for the maximum area) and my whiteboard isn't one of the largest so I could take only two measurements.

Stefan van Aalst

Offline benpaddlejones

  • Support Admin
  • *
  • Posts: 1178
  • Karma: +49/-0
    • View Profile
    • Inter.Connect.Ed
Reply #1 on: June 26, 2008, 04:00:32 AM
Awesome work!


See my full profile and links on my Google Profile:

Offline UndCon

  • Support Admin
  • *
  • Posts: 566
  • Karma: +11/-3
    • View Profile
    • UndCon
Reply #2 on: June 26, 2008, 07:55:04 AM
excellent! great work sts70nl

Offline mystre

  • *
  • Posts: 69
  • Karma: +2/-0
    • View Profile
    • Mystr E
Reply #3 on: March 15, 2009, 06:56:07 AM
I'm training a couple of our IT guys to set up wiimote IWB in other schools, and wanted to give them a starting point when they setup the wiimotes.  This is an image of the what I came up with.  Are these starting points fairly reasonable?