Formula with Area Scale and TF Scale

[hugegene]

Hi Joydeepmedhi,

Thanks for these codes. They are very helpful.

Can i ask why the formula for Area Scale is
data['b_area_scale'] = (data['w']*data['h']/(base_box)).apply(np.sqrt)
instead of
data['b_area_scale'] = (data['b_w']*data['b_h']/(base_box)).apply(np.sqrt)?

and why the for formula for TF Scale is
data['tf_scale'] = data['b_h'](data['b_ar']).apply(np.sqrt)/base_anchor
instead of
data['tf_scale'] = data['b_h'](data['b_ar'])/base_anchor?
(why is square root needed for TF Scale?)