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Unread 16-02-2016, 17:29
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Re: Vision for frc 2016

Quote:
Originally Posted by derekhohos View Post
If I may ask, how accurate can your GRIP pipeline analyze the retroreflective tape? Does your pipeline detect other "objects" (i.e. bright lights)? Finally, what threshold are you using to filter the contours (HSL, HSV, RGB)? My team can successfully detect the U-shaped retroreflective tape, but the pipeline sometimes picks up bright lights and could alter the values of the ContoursReport.
I've found that filtering by solidity in combination with a reasonable minimum area picks up the targets really well. The U-shaped targets have a solidity of about 1/3, regardless of how far away they are, while random blobs usually have a solidity closer to 1.
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GRIP (Graphically Represented Image Processing) - rapidly develop computer vision algorithms for FRC
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