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Unread 14-01-2011, 10:19
Tom Bottiglieri Tom Bottiglieri is offline
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Re: FRC 2011 Vision Tracking

Quote:
Originally Posted by Greg McKaskle View Post

If you've read the tutorial, it mentions robot mounted lighting. Have you built one? Do your images look something like the ones in the tutorial? The next step is to use something such as color threshold or subtraction of an unlit image from a lit image. This refers to flashing the light near your own camera. With either of these approaches, you'll have a binary image. Adjust the threshold or other factors until this isolates the targets.
Hi Greg,

How well does the RGB thresholding work for these targets? I am worried different lighting/exposure levels may throw it off. Do you think using an IR light source and the appropriate filter over the CCD could yield better results? It would make the thresholding single channel and may be less susceptible to varying backgrounds and lighting conditions. Or, do you think this would be overkill?

Thanks in advance.
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