Implementations about the FCShapeDecoder

[hideonInternet]

Hi, could you shed light on the usage of obj_scale, tanh_scale, scaling variables in FCShapeDecoder respectively?

• Why you multiply the intermediate value with the above scaling factor to get the final vertex coordinates? Is that because to reduce the destruction of noise?
• How to choose the value of those variables? Is that empirically found useful?
  

  view_prior_learning/mesh_reconstruction/decoders.py

  Lines 382 to 390 in 6f1afa8

  	class FCShapeDecoder(chainer.Chain):
  	def __init__(
  	self, dim_in=512, scaling=1.0, use_bn=False, fc_connection=False, symmetric=False):
  	super(FCShapeDecoder, self).__init__()
  	self.grid_size = 16
  	self.obj_scale = 0.5
  	self.tanh_scale = 1.2
  	self.scaling = scaling

I also notice that the different method is used to reconstruct 3D mesh in your another repo mesh_reconstruction. What makes you choose different reconstruction algorithms?

Thank you in advance!

[bharadwajdhornala]

Hi @hideonInternet Guide me on this #4