Circle markers (beta)

Enabling marker tracking Creating markers Adjusting marker tracking

Cornerstone supports the use of 2D circle markers which can be used to track objects on the screen. The marker information can be accessed through the Cornerstone C++ API, TUIO stream, and XML stream.

Overall workflow

1. Create markers using the MarkerFactory application. Make sure that you pass the number of rings to the MarkerFactory application (division parameter). MarkerFactory is distributed with Cornerstone and is located in bin folder.
2. Print out markers using any software that can open and print PNG files (PhotoShop, Gimp, Mac OS X Preview, etc.)
3. Enable marker tracking in the OSD
4. Use markers in your application
   • With Cornerstone SDK
   • With TUIO
   • By parsing XML stream

You may also want to check two FAQs about finger tracking with markers and marker image burn-in.