quaiky on 31 October 2008
| famousringo said: So they use optical for x and y sensing, and use sonic for z sensing. How do they get orientation? Patterns in the reflective material? It's not 1:1 unless they figure that out. And why can't they use sonic for x, y, and z? Some interesting ideas here, but I agree that this particular device looks over-engineered. |
to use sonic for x,y and z you would have to mount multiple detectors ( needs at least 4 for a good detection of x/y/z) all around the room and measure the time the signal takes to get to each of these and you need to calibrate teh system for the room first (and i guess that would be too complictaed for most users).
the mix of visual and sonic is a good thing since you can integrate that all into one detector and the detector can be placed nearly everywhere (it should just eb in a position where teh camera has a good view angle. if you use 2 sonic sources on each detector you can probably even detect orientation.
