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-   -   Source for Vision Target Fabric (http://www.chiefdelphi.com/forums/showthread.php?t=71045)

DanDon 03-01-2009 17:20
Source for Vision Target Fabric
 
Does anyone know where we would be able to acquire more pieces of the green and pink vision targets? I would like to see how the camera reacts when there are multiple targets in the field of view.

Thanks!

JoshD 03-01-2009 17:32
Re: Source for Vision Target Fabric
 
The fabric appears to be the same 1000D Cordura fabric some teams use to cover their bumpers with.

Joshamuffin 03-01-2009 17:32
Re: Source for Vision Target Fabric
 
Just use paper of the same color.

Tanner 03-01-2009 18:01
Re: Source for Vision Target Fabric
 
The camera can track any number of targets (well, there's probably a limit, but I doubt that'd be realistic), but it all depends on the software that uses the camera. Sure, the camera may appear to track one target, but most likely it is choosing one specific target particle due to its qualities.

If you're going to play with vision, go play in Vision Assistant. You can then export from there a LabView VI, which you can use on the robot.

Cheers
-Tanner

DanDon 03-01-2009 18:10
Re: Source for Vision Target Fabric
 
Quote:
Originally Posted by Tanner (Post 789849)
The camera can track any number of targets (well, there's probably a limit, but I doubt that'd be realistic), but it all depends on the software that uses the camera. Sure, the camera may appear to track one target, but most likely it is choosing one specific target particle due to its qualities.

If you're going to play with vision, go play in Vision Assistant. You can then export from there a LabView VI, which you can use on the robot.

Cheers
-Tanner
I was actually just really wondering where i could get more of the vision target fabric....I'm more of a C++ guy myself, anyway.

But on the topic of the Vision Assistant, how do you change the colorspace that you're playing with the image in? Mine seems to be stuck in RGB when I want to use HSL.

Tanner 03-01-2009 18:15
Re: Source for Vision Target Fabric
 
Quote:
Originally Posted by DanDon (Post 789874)
I was actually just really wondering where i could get more of the vision target fabric....I'm more of a C++ guy myself, anyway.

But on the topic of the Vision Assistant, how do you change the colorspace that you're playing with the image in? Mine seems to be stuck in RGB when I want to use HSL.
Eh, no problem - more information than you wanted is no harm.

Should depend on the little "functions" you pick on. For instance, what I have used to get started in my experience in getting the camera to track something (ex: the big blue ball) is to start with the Line Profile (after switching it to HSL). And then selecting the Color Threshold (and switching to HSL) and placing the values that are "blue".

I don't have Vision Assistant in front of me, but as far as I know, its pretty much per function.

-Tanner

DanDon 03-01-2009 18:21
Re: Source for Vision Target Fabric
 
Quote:
Originally Posted by Tanner (Post 789884)
Eh, no problem - more information than you wanted is no harm.

Should depend on the little "functions" you pick on. For instance, what I have used to get started in my experience in getting the camera to track something (ex: the big blue ball) is to start with the Line Profile (after switching it to HSL). And then selecting the Color Threshold (and switching to HSL) and placing the values that are "blue".

I don't have Vision Assistant in front of me, but as far as I know, its pretty much per function.

-Tanner
Maybe I'm missing something, but how do you switch to HSL before selecting Line Profile?

Tanner 03-01-2009 18:24
Re: Source for Vision Target Fabric
 
Quote:
Originally Posted by DanDon (Post 789894)
Maybe I'm missing something, but how do you switch to HSL before selecting Line Profile?
Ah - you switch to HSL after selecting Line Profile. It's like right above the the graph that shows up on the right side of the screen.

-Tanner


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