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By: Matt Krass
New: 26-01-2006 23:51
Updated: 26-01-2006 23:51
Views: 789 times
We're still working on interfacing four cameras over two serial ports...
Discussion
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27-01-2006 00:18
527point
Re: pic: 358 has four eyes!
I'm scared....one of these days you will need to explain to me exactly what your doing with these
27-01-2006 00:30
Nuttyman54
Re: pic: 358 has four eyes!
why is one mounted on what appears to be a joystick?
27-01-2006 00:32
Matt Krass
Re: pic: 358 has four eyes!
Prototype gimbal.
Now we're waiting for Kevin to help us interface four cameras with only two serial ports.....any ideas?
27-01-2006 07:36
Gdeaver
Re: pic: 358 has four eyes!
How can you justify the cost of 4 cameras and the additional electronics rule?
27-01-2006 08:54
Tristan Lall
Re: pic: 358 has four eyes!
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Originally Posted by Gdeaver
How can you justify the cost of 4 cameras and the additional electronics rule?
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27-01-2006 09:12
Erics626
Re: pic: 358 has four eyes!
Do I spot a joystick base being used for the pan and tilt? How did you manage to do that?
27-01-2006 09:27
Peter Matteson
Re: pic: 358 has four eyes!
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Originally Posted by Erics626
Do I spot a joystick base being used for the pan and tilt? How did you manage to do that?
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27-01-2006 10:30
Sachiel7
Re: pic: 358 has four eyes!
Again, I ask (as others have) why the need for four cameras?
If you're having that much trouble centering in on a goal, I think you might need to adjust the focus...dunno....
If its for something else, such as the proposed "tracking balls" theories teams have been putting forth, I still think you could accomplish that with less....
27-01-2006 11:25
Mark McLeod
Re: pic: 358 has four eyes!
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Originally Posted by Sachiel7
Again, I ask (as others have) why the need for four cameras?
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27-01-2006 11:53
Billfred
Re: pic: 358 has four eyes!
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Originally Posted by Mark McLeod
One for the goal and three to track opposing alliance robots of course.
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Originally Posted by Chuck Norris Facts
If you can see Chuck Norris, Chuck Norris can see you. If you can't see Chuck Norris, you may be only seconds away from death.
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27-01-2006 11:58
Tom Bottiglieri
Re: pic: 358 has four eyes!
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Originally Posted by Matt Krass
Prototype gimbal.
Now we're waiting for Kevin to help us interface four cameras with only two serial ports.....any ideas? |
Cam1 = new Camera(); Cam2= new Camera(); Cam3= new Camera(); Cam4= new Camera(); RC.MakeThread(); Thread.Run(Cam[x].TrackRobotsAndStuff()) ;
27-01-2006 12:09
Shu Song
Re: pic: 358 has four eyes!
You're gonna have a very hard time tracking the other robots, because they don't have illuminated targets. You'll be trying to track them like last year's vision tetras.
Secondly, how are you actually using the joystick to control the camera? Are you attempting to move the turret and as the change in acceleration moves the camera on the joystick and reading the X and Y values on the joystick? The measurement you get is acceleration and if you want to position you gotta integrate that twice and introduce a lot of error in the progress. Having a potentiometer to measure absolute position is the best way to do it.
27-01-2006 15:06
Cory
Re: pic: 358 has four eyes!
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Originally Posted by Mark McLeod
One for the goal and three to track opposing alliance robots of course.
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It's just a hunch, but Im going to go out on a limb and guess that human eyes will be much more effective at tracking robots than robots will
27-01-2006 15:22
Mark McLeod
Re: pic: 358 has four eyes!
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Originally Posted by Cory
It's just a hunch, but Im going to go out on a limb and guess that human eyes will be much more effective at tracking robots than robots will
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Not all driver's see equally well.
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Originally Posted by Cory
...what happens when they aren't in front of you?
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(what movie is that line from?)
Maybe we're simple bird watching enthusiasts.
27-01-2006 15:40
Greg Marra
Re: pic: 358 has four eyes!
The joystick -> camera mount is extraordinarly effective. We used it last year to great success.
I suppose you could mount an EDUBot controller and have it run two CMUCams and then pass the values back through analog in's on the big RC...
Still, 4 cameras seems a tad overkill.
27-01-2006 16:13
Mike
Re: pic: 358 has four eyes!
Duh, you guys are idiots. The obvious reason for having multiple cameras is for Matt's proposed method of vision multiplexing by algorithmic implementations of backwards-compatible and proprietary standards. This method is extremely nimble, with its low risk and high yield. The cameras must work in such a way that they resemble a cluster team of multi-scalable processes. From my statistical analysis, I may ascertain that the 358 robot will cause a paradigm shift in the area of FIRST autonomy.
Duh.
27-01-2006 19:53
geeknerd99
Re: pic: 358 has four eyes!
Uh oh. Looks like its mounted on a vison tetra panel. That means that it'll distract our cannons... Oh wait, it's a vision tetra panel. It's not like we can see those anyways...
Perhaps it's for triangulation of their location by calculating the angles to the target?
27-01-2006 21:27
spamified88
Re: pic: 358 has four eyes!
Wow, you have 4?! We don't even have one yet!!
27-01-2006 21:36
Andrew Blair
Re: pic: 358 has four eyes!
Obviously, the four cameras will all return their own view on the subject of the illuminated target, where, in the brain, the information is fed into a highly complex social algorithm that allows all four streams to fight simultaneously. So, by the end of the match, hopefully, one will have established dominance of the others, just in time for the buzzer. Sounds great!
27-01-2006 22:55
devicenull
Re: pic: 358 has four eyes!
I would think you are going to need some sort of co-processor.. there's no way you can have the RC monitoring 4 cameras and still doing other stuff. Co-processor for the camera is the way to go.
28-01-2006 12:47
Matt Krass
Re: pic: 358 has four eyes!
We're going to keep color profiles of the primary colors of robots at the events and preselect them to track opposing alliance robots, it's also good for tracking multiple people and gunning them down with Poof balls.
We're working on pattern recognition for black and white stripes.
29-01-2006 19:31
coldabert
Re: pic: 358 has four eyes!
if we're ever in the same pit, please stop by and explain to me how you managed to use all of that data in 10 seconds
31-01-2006 15:28
Chriszuma
Re: pic: 358 has four eyes!
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Originally Posted by Dzdconfusd
Replace the potentiometers with servos. Just takes a couple of brackets and a basic shaft.
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31-01-2006 15:32
Peter Matteson
Re: pic: 358 has four eyes!
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Originally Posted by Chriszuma
Dude! You totally stole my idea from last year! http://www.chiefdelphi.com/forums/sh...ad.php?t=33418
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The difference was we got rid of the plastic we didn't need to lighten it up.
31-01-2006 15:34
Chriszuma
Re: pic: 358 has four eyes!
And it seems like the 4 cameras might just be an extremely inefficient method of attaining hardware fault protection. In this way 3 cameras can be annihilated with poof balls before the robot is blind. Of course a simple protective cage with a window would work equally well, but if you're under budget why not go for the gusto?
31-01-2006 15:35
Chriszuma
Re: pic: 358 has four eyes!
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Originally Posted by Dzdconfusd
Yeah we saw that and did the same thing because it was a nice simple solution.
The difference was we got rid of the plastic we didn't need to lighten it up. |
01-02-2006 15:03
Revolverx7
Re: pic: 358 has four eyes!
Auto turret targeting. I keep telling them i dont want to have to aim this thing i just wanna drive around pullin 360's so the camera's get to target and do all the work for me.
i wish.
01-02-2006 15:24
Chriszuma
Re: pic: 358 has four eyes!
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Originally Posted by Revolverx7
Auto turret targeting. I keep telling them i dont want to have to aim this thing i just wanna drive around pullin 360's so the camera's get to target and do all the work for me.
i wish. |
01-02-2006 15:39
Rick TYler
Re: pic: 358 has four eyes!
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Originally Posted by Mark McLeod
"What is behind me is not important."
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02-02-2006 15:31
Revolverx7
Re: pic: 358 has four eyes!
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Originally Posted by Chriszuma
That doesn't explain why you need 4. Turret tracking can be effectively accomplished with a single camera.
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02-02-2006 18:34
Dillon Compton
Re: pic: 358 has four eyes!
Or, this COULD be a picture of 4 cameras mounted to their 2004 robot designed to keep you all busy talking about it instead of working on your own vision systems...
just sayin...
02-02-2006 21:50
Chriszuma
Re: pic: 358 has four eyes!
| One facing each side of the robot. |
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Or, this COULD be a picture of 4 cameras mounted to their 2004 robot designed to keep you all busy talking about it instead of working on your own vision systems... just sayin... |
03-02-2006 11:25
Mark McLeod
Re: pic: 358 has four eyes!
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Originally Posted by Dillon Compton
Or, this COULD be a picture of 4 cameras mounted to their 2004 robot designed to keep you all busy talking about it instead of working on your own vision systems...
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Originally Posted by Rick TYler
Well, Mark, I guess we are both pretty old and remember obscure movies. It's from Gumball Rally.
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Obsure but classic.
Sort of like us old guys I suppose...
03-02-2006 11:25
Revolverx7
Re: pic: 358 has four eyes!
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Originally Posted by Dillon Compton
Or, this COULD be a picture of 4 cameras mounted to their 2004 robot designed to keep you all busy talking about it instead of working on your own vision systems...
just sayin... |
As to overkill, we could use one camera to track each opposing robot and one for the center goa.
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