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Unread 24-01-2009, 01:23
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Jon Stratis Jon Stratis is offline
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FRC #2177 (The Robettes)
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Re: Team Pink Can't be Pink

Quote:
Originally Posted by jamie_1930 View Post
I haven't worked with the camera, but I'm pretty sure anyone utilizing the color differentiation should be able to differentiate between different shades of the color so if the pink was a flatter color rather than flourescent I think they'll be ok (feel free to correct me if I'm wrong). Although I think this is still going to mess with moes traditional neon green.
Yes and no... detecting the vision target depends on specifying a range of acceptable colors, and depending on lighting conditions you'll detect various shades of pink. When we did our initial calibration, our light pink sweatshirts passed just fine, but one college mentor was wearing dark pink (darker than the target) and was detected, as was a chair in the room.

Plus, every pink or green blob your robot has to inspect increases the time you have to spend inspecting each image, slowing down your vision system with false positives.

Quote:
Originally Posted by AdamHeard View Post
I don't see why this is even an issue.

The robots are NEVER more than 60" tall.

The Targets are always at a certain height (over 60").

Shouldn't be difficult at all to avoid tracking robots.
In order to tell distance to target, you want the camera to be low, looking up towards the vision target (giving you an angle, from which you can compute distance easily). with a low camera and a high target, colored robots can easily get in the way.
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