kalman init

[kuku-sichuan]

why the init of kalman filter's std is:
std = [
2 * self._std_weight_position * measurement[3],
2 * self._std_weight_position * measurement[3],
1e-2,
2 * self._std_weight_position * measurement[3],
10 * self._std_weight_velocity * measurement[3],
10 * self._std_weight_velocity * measurement[3],
1e-5,
10 * self._std_weight_velocity * measurement[3]]

could you tell some reason or source ?

[gau-nernst]

I believe this is taken directly from SORT/DeepSORT. You can check those repos and the corresponding papers for more information. But in general I think the values were just slightly tuned by the DeepSORT author and no one bothers to modify them when they use Kalman filter in other trackers.