Deeplabv3+ models for the aradeepopsis pipeline

Transfer learning of the DeepLabv3+ model (xception backbone) for use with aradeepopsis in single- or multi-scale mode.

1_class corresponds to model A; 2_class to model B and 3_class to model C as described here

The datasets used for training are available at https://doi.org/10.5281/zenodo.3946393 and the code used for transfer learning is available on GitHub