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Unread 15-02-2007, 15:15
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What would Dave do?
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Re: Camera tracking other lights

Do the skylights show up when you look at the Tracking Frame with the LabView GUI? If so, is it possible to limit the camera's field of view (with a mask or tilt limit) so it doesn't see them?

Things I've seen happen with bright interfering light sources are:
- If the interfering light is very bright and near the line of sight between the camera and the target light, or it reflects off the face of the target light, it can swamp the target out, even if it doesn't contain the target color.
- If the interfering light is broad-spectrum white light (which sunlight is), it will contain the green we're looking for and, if it is bright enough, the camera may see it as a valid target. It has to be really bright, though.

I've got a camera looking out the window at bright sunny (& snow covered) scene right now. Using the 2006 Target.cfg config, with the Noise Filter set to 1, it isn't picking up anything at all. However, if I set the Noise Filter to 0, the camera picks up the light off reflective surfaces, like a shiny car parked outside. Reducing the Saturation Control to 120 (from 128) eliminated them.
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