Function sigmoid

loss.py:271–272

(x, base=2.71828)

    loss = loss * weight
    return loss
def sigmoid(x, base=2.71828):
    return 1 / (1 + torch.pow(base, -x))
def entropy_loss(prob_volume, depth_gt, mask, depth_value, return_prob_map=False):
    # from AA
    mask_true = mask