Function stdv_channels

models/multitask_docnc_model.py:32–36

(F)

def stdv_channels(F):
    assert(F.dim() == 4)
    F_mean = mean_channels(F)
    F_variance = (F - F_mean).pow(2).sum(3, keepdim=True).sum(2, keepdim=True) / (F.size(2) * F.size(3))
    return F_variance.pow(0.5)