| Algorithm 1 |
| If(Hand is not empty) |
| { |
| If ( |
| sqrt (pow (frame. rotation Angle (last frame, x), 2)+ |
| pow (frame. rotation Angle (last frame, y), 2)+ |
| pow (frame. rotation Angle (last frame, z), 2)) |
| >threshold1 |
| or |
| fingertip. velocity > threshold2 |
| ) |
| Start collecting dynamic hand gestures |
| Else |
| Stop collecting dynamic hand gestures |
| } |
| Else |
| Stop collecting dynamic hand gestures |
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