Questions about calculate_weights()

[copyrightly]

Hi Andrey, I have a couple of questions about calculate_weights().

1. in line 106-109, why do you need expand_as(self.y)?
2. in line 118, why do you need to divide g by (2 * math.pi * sigma ** 2)? I cannot find this in the original expression of Gabor filters.
   Thank you!

[copyrightly]

One more question, in line 91, why do you self.register_parameter("weight", self.weight)? It seems that self.weight is an empty tensor which isn't needed in the computation.

[happyday521]

@copyrightly Hi, have you solved the above problems? I have the same confusion as you about:

1. dividing g by (2 * math.pi * sigma ** 2), and
2. self.register_parameter("weight", self.weight)