Add deformable CNN and ConvLSTM

[vyokky]

Add deformable CNN and ConvLSTM

[zsdonghao]

this is an amazing contribution @vyokky thank you very much.

btw, I updated the code for documentation.

[vyokky]

Thanks. I will continue to contribute to this project in the future.

[vyokky]

Hi, I find that the deformable CNN depends on tensorflow 1.4. If this is a problem I can fix later.

[zsdonghao]

@vyokky TF1.4 doesn't matter, probably adding the following code in deformable CNN API can give some hint to others when error happen.

if tf.__version__ < "1.4":
      raise Exception("xxx")

[zsdonghao]

hi, it seems you miss some code in the pr.

NameError: name '_get_vals_by_coords' is not defined

[zsdonghao]

Hi @vyokky , could you provide an example code to use ConvLSTMLayer ?

Many thanks.

[vyokky]

Hello,

Please find the example code below:

network = tl.layers.ConvLSTMLayer(
      network, 
      cell_shape = (11, 11), 
      filter_size=(3, 3), 
      cell_fn = tl.layers.BasicConvLSTMCell, 
      n_steps = 12, 
      feature_map = 3,  
      name='convlstm')

I notice that TF has released a build-in ConvLSTM cell which I will incorporate into TL soon.