Draw a straight line in the air with index finger
A straight line drawing challenge using AI hand recognition! Extend only your index finger and draw a straight line in the air. AI tracks your finger position in real-time!
Extend only your index finger and keep other fingers folded. Draw a straight line from the blue dot to the orange dot!
Score is calculated based on line straightness. R² coefficient (coefficient of determination) is converted to 100 points, with a perfect straight line scoring 100!
Keep your finger stable and draw at a slow, constant speed. The countdown starts 3 seconds after you bring your finger near the blue dot!
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