RPN_BBOX_STD_DEV and BBOX_STD_DEV in config.py

[ccnankai]

Hi @parap1uie-s parameters： RPN_BBOX_STD_DEV = np.array([0.1, 0.1, 0.2, 0.2]) BBOX_STD_DEV = np.array([0.1, 0.1, 0.2, 0.2]) in config.py How do the values of these two parameters get? Is it based on experience? thank you!