Quote:
Originally Posted by drakesword
So for an alternative we shall look at a large number of red and blue leds.
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What do you intend to do with these LEDs?
If they are to be used as illumination for the retroreflective tape, keep in mind that you probably don't want to make it very bright. The tape itself is
extremely reflective. A too-bright light will completely saturate the camera, which will keep you from being able to match a particular color.
Our testing gives us useful results from a dozen semi-bright red LEDs behind a layer of mylar used as a diffuser. We're going to try again with (less-bright) green ones, because using a red color target we've seen undesired recognition of robot bumpers.