From: 3D hand tracking using Kalman filter in depth space
Gestures
a
b
c
Square
Triangle
Circle
Distance (pixel)
1 m
8.506
7.557
6.369
7.798
6.831
6.421
2 m
5.837
6.544
5.053
5.218
5.119
6.223
3 m
4.822
6.398
4.122
3.885
3.776
4.263