We are working on tracking the VISION TARGET with our Axis Camera, and are investigating what kind of light source should be used for the retro-reflective fabric.
White - Easiest, but we are worried that we will get false positives with our vision processing algorithm at an event. We get minor false positives with our current algorithm in our build area (using a fairly bright white LED flashlight), though they may be able to get tuned out (for the most part they are usually a lower score than the real target).
Red/Blue/Yellow - May get extraneous results from the LOGO PIECES.
Green - 1st choice, as this would probably be the brightest, but we may get false results from the Tower Lights and:
Rule 02, Part C: Any devices or decorations specifically intended to jam or interfere with the remote sensing
capabilities of another robot,including vision systems, acoustic range finders, sonars, infrared proximity detectors, etc.(e.g. including imagery on your robot that, to a reasonably
astute observer, mimics the VISION TARGET
Though not specifically called out, this could* cause a distraction to another robot's vision algorithm.
Purple - 2nd choice, I don't see any issues with the field, but intensity is less than a comparable green light, all things being equal.
What are other teams doing? Did you make your light or buy it? We will probably end up making a ring light surrounding the camera using this
current supply and
led's.
Obviously safety is an issue, so we will make sure that it isn't too bright that it will cause harm to people. The only other rule that I can find to guide us is this GDC response:
"There are no rules that prohibit a light source on the ROBOT. Note that the light source must not be a violation of Rule R02."