# Wiimote Project

## Wiimote Projects => Wiimote Interactive Whiteboard => Topic started by: sts70nl on June 26, 2008, 03:42:20 AM

Title: First trial: ideal distance Wiimote <-> size screen
Post by: sts70nl on June 26, 2008, 03:42:20 AM
Objective:
Have a rule of thumb to quickly setup the Wiimote for use with a beamer and whiteboard.

Criteria:
Consistent and very optimal tracking on a white board

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

Setup:
- 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).

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

Results
 d WT WB HL HR resolution W:H 104cm 78cm 77cm 53cm 47cm 114% 3.1:2 50cm 36cm 34cm 25cm 25cm 120% 2.8:2

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

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

Question
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
Title: Re: First trial: ideal distance Wiimote <-> size screen
Post by: benpaddlejones on June 26, 2008, 04:00:32 AM
sts70nl
Awesome work!