Just for curiosity's sake, is any member here actually going to enter the Pittelli X-Prize? (No, offence; I think it's an interesting idea =D )
-Mike M 2009/5/21 Frank Pittelli <[email protected]> > > Doug Conn wrote: > > I tried this technique with the camera and laser in my tank. It worked > > pretty well in low light and short ranges. In full daylight, though, the > > laser point was not identifiable in the camera frame. > > Ahhh ... the wonderfully subtle technical problems posed by The Pittelli > X-Prize begin to reveal themselves. Despite all the TV shows and > YouTube videos showing a multitude of apparently simple techniques for > range finding, the reality is that reality is a bitch and the > battlefield is not your workshop or laboratory. > > Even if you got a more powerful laser or a CCD that was tuned for the > laser, would the simple trig approach still work for something 50 feet > away? If you crank the numbers for targeting something 2 feet wide, at > a range of 50 feet, with a co-axial distance of at most 2 feet (between > the camera lense and the laser), what pixel resolution do you need to > tell when that object has moved 3 feet forward or backward? > > RE: Radar ranging: In the U.S., the FCC limits the power output of > commercial wide-spectrum radar devices so that the maximum realistic > motion detection range is about 25 feet. Government devices can be more > powerful, but sale of those devices is restricted. > > BTW: Feel free to cross-post the existence of The Pittelli X-Prize to > all of the autonomous robot mailing lists and forums. You'll probably > get lots of wonderful ideas from them, but I seriously doubt any of the > thousands of autonomous roboteers will actually take up the challenge. > After reading it, they'll just go back to building their desktop "bug > walkers" and LEGO-based contraptions, to impress their non-technical > friends and family. > > Frank P. > > > > -- -Mike Måne @ http://moonrcprojects.googlepages.com --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
