Text-to-Face generation using Deep Learning. This project combines two of the recent architectures StackGAN and ProGAN for synthesizing faces from textual descriptions.
The project uses Face2Text dataset which contains 400 facial images and textual captions for each of them. The data can be obtained by contacting either the RIVAL group or the authors of the aforementioned paper.
The textual description is encoded into a summary vector using an LSTM network. The summary vector, i.e. Embedding (psy_t) as shown in the diagram is passed through the Conditioning Augmentation block (a single linear layer) to obtain the textual part of the latent vector (uses VAE like reparameterization technique) for the GAN as input. The second part of the latent vector is random gaussian noise. The latent vector so produced is fed to the generator part of the GAN, while the embedding is fed to the final layer of the discriminator for conditional distribution matching. The training of the GAN progresses exactly as mentioned in the ProGAN paper; i.e. layer by layer at increasing spatial resolutions. The new layer is introduced using the fade-in technique to avoid destroying previous learning.
Running the code:
The code is present in the
implementation/ subdirectory. The implementation is done using the PyTorch framework. So, for running this code, please install
PyTorch version 0.4.0 before continuing.
configs: contains the configuration files for training the network. (You can use any one, or create your own)
data_processing: package containing data processing and loading modules
networks: package contains network implementation
processed_annotations: directory stores output of running
process_text_annotations.py: processes the captions and stores output in
processed_annotations/ directory. (no need to run this script; the pickle file is included in the repo.)
train_network.py: script for running the training the network
# All paths to different required data objects images_dir: "../data/LFW/lfw" processed_text_file: "processed_annotations/processed_text.pkl" log_dir: "training_runs/11/losses/" sample_dir: "training_runs/11/generated_samples/" save_dir: "training_runs/11/saved_models/" # Hyperparameters for the Model captions_length: 100 img_dims: - 64 - 64 # LSTM hyperparameters embedding_size: 128 hidden_size: 256 num_layers: 3 # number of LSTM cells in the encoder network # Conditioning Augmentation hyperparameters ca_out_size: 178 # Pro GAN hyperparameters depth: 5 latent_size: 256 learning_rate: 0.001 beta_1: 0 beta_2: 0 eps: 0.00000001 drift: 0.001 n_critic: 1 # Training hyperparameters: epochs: - 160 - 80 - 40 - 20 - 10 # % of epochs for fading in the new layer fade_in_percentage: - 85 - 85 - 85 - 85 - 85 batch_sizes: - 16 - 16 - 16 - 16 - 16 num_workers: 3 feedback_factor: 7 # number of logs generated per epoch checkpoint_factor: 2 # save the models after these many epochs use_matching_aware_discriminator: True # use the matching aware discriminator
requirements.txt to install all the dependencies for the project.
$ workon [your virtual environment] $ pip install -r requirements.txt
$ mkdir training_runs $ mkdir training_runs/generated_samples training_runs/losses training_runs/saved_models $ train_network.py --config=configs/11.comf