1. DartPiAutomatic Dart Score Detection using Raspberry Pi Christian Hirsch

2. Content • Motivation • Development Environment • Approach/Progress • Problems • Videos DartPi – Automatic Dart Score Detection

3. Motivation • „Analog“ dart is cooler • Darts can hurt • You see that you‘ve played • Manual counting is annoying • A PC or notebook is too big/expensive • Raspberry Pi is the solution DartPi – Automatic Dart Score Detection

4. Development Environment • For Testing: • Open CV 2.4.3, C++ • Microsoft Visual Studio 2010 • Videos • Final version • RaspberryPi, Raspbian • OpenCV 2.3.?, g++, make • „analog“ Dartboard + 2 Webcams DartPi – Automatic Dart Score Detection

5. Approach/Progress • Detect dartboard + markings • Detect darts • Check whether someone shot a dart or player changed • Equip dartboard with webcams • Compile the program on Raspbian • Count the dart-score • Create a userinterface (?) • Handle user interactions DartPi – Automatic Dart Score Detection

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7. Would be nice but … DartPi – Automatic Dart Score Detection

8. … not possible  DartPi – Automatic Dart Score Detection

9. Possible … your title

10. Possible … DartPi – Automatic Dart Score Detection

11. Dart Detection - Process • Initialize background model • for each camera • Check if something changes • small changes in short time -> dart • big changes, long time -> change • anyting else -> error • Get dartboard + dart contours • calculate position • calculate points • Return points DartPi – Automatic Dart Score Detection

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13. Real Problems • GLS • Webcams • no wideangle • Raspberry Pi performance • Image resolution of 320x240 px used • Errors • Maybe one webcam does not work correctly DartPi – Automatic Dart Score Detection

14. Thank you & good night Questions?