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How to build a Multi-Touch surface

Step 8Calibration and Testing

Calibration and Testing
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  • CCV.JPG
  • 5.JPG
 Now that you have everything aligned its time to test out the setup.  Start by connecting the projector and PS3 Eye camera to the computer and connecting everything to power.  Once the computer has started up, install the CL-Eye Platform Driver and CCV.

CCV is an open-source program that processes the IR image picked up by the camera and turns them into blobs (TUIO events).  These events can then be used by programs to allow the user to interact.  Once CCV is up and running, click on the use camera option to begin receiving input from your PS3 Eye camera.  Now experiment by touching the surface and watching to see what blobs are picked up in the Tracked view.  Play with the "Image Threshold" and other settings until the desired blobs are achieved.

Once that is complete, complete the "Calibration" mode in order to map pixels on the projected image to points picked up by the camera.

A complete guide to calibrating and testing your surface can be found here.
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