OU Multitouch table : How does frustrated total internal reflection table work?
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Ok the camer you can simply use a web cam and take out the IR filter and put another filter in to block the regular light. I use a small strip of a disk from a flopy drive. LED's you can get from ebay, and make sure they are 850nm, it's easier for the camera to pick up. Hope that helps!
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could you send me in a direction for the IR camera and LED's ?
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You can to that for small tables - people often use exposed+developed negative as light filter. But it's not so good for LARGE tables and they are very vulnerable to daylight. This table uses high end camera to enable it to see a large area with a reasonable resolution. But thanks for the advice.
sheepDalton 1 year ago