Image-Captioning-with-Adaptive-Attention

This is a PyTorch implementation of Knowing When to Look: Adaptive Attention via A Visual Sentinel for Image Captioning.

Requirements

This code is all written in Python. You will need a GPU to train the model.

You also need to install the following package in order to sucessfully run the code.

• Torch
• torchvision
• h5py
• scipy
• tqdm
• NLTK

Dataset

You can feel free to choose MSCOCO, Flicker8k or Flicker30k as your dataset.

You might want to use the following command to download the MSCOCO dataset:

wget http://images.cocodataset.org/zips/train2014.zip
wget http://images.cocodataset.org/zips/val2014.zip

We will use Andrej Karpathy's training, validation, and test splits. To download the zip file, you can use the following command:

wget http://cs.stanford.edu/people/karpathy/deepimagesent/caption_datasets.zip

Data preprocess

In order to preprocess the data on the MSCOCO dataset, you can use the following command:

mkdir coco_folder
python create_input_files.py -d coco -i [YOUR-IMAGE-FLODER]

Training

Use the following command to training the model on MSCOCO dataset:

python train.py -d coco

For comparison, you may also want to train the model with soft attention (paper):

python train.py -d coco -a

Evaluation

You can feel free to choose different beam sizes during evaluation. Use the following command to compute all BLEU (i.e. BLEU-1 to BLEU-4) scores:

python eval.py -d coco -cf [PATH-TO-CHECKPOINT] -b 5

Note that the best checkpoint in training process is based on the BLEU-4 score.

Captioning

For captioning on your own image, you can use the following command:

python caption.py

Reference

If you use this code as part of any published research, please acknowledge the following paper:

@misc{Lu2017Adaptive,
author = {Lu, Jiasen and Xiong, Caiming and Parikh, Devi and Socher, Richard},
title = {Knowing When to Look: Adaptive Attention via A Visual Sentinel for Image Captioning},
journal = {CVPR},
year = {2017}
}

Acknowledgement

The code is developed based on a-PyTorch-Tutorial-to-Image-Captioning.