Vision as Tokens

• This repo is the implementation of my bachelor thesis: Towards Unifying Visual Discriminative Tasks from Generative Representation, which is not published yet.

• We provide two settings, named MDETR and VQGAN respectively, to uniformly handle three visual discriminative tasks:

  • Phrase Grounding
  • Phrase Segmentation
  • Depth Estimation

• Note: this repo may be not well-organized, and if you have any confusion or relevant idea, feel free to contact me at huangjiangyong@pku.edu.cn.

Installation

• Environment

  conda create -n vito python=3.8
  conda activate vito

• Requirements

  conda install pytorch torchvision torchaudio cudatoolkit=11.3 -c pytorch
  pip install -r requirements.txt

• Dependencies about VQGAN. Please refer to 'Training on custom data' in VQGAN for setup. Specify the configurations and finish stage-one training, which we are going to utilize during stage-two for quantized representation.

Data preparation

• Refer to lichengunc/refer: Referring Expression Datasets API (github.com), prepare images and json files in order. Images consist of MS COCO Train2014 and Saiapr_tc-12.
• Configure data/generate_anno.py and run it to generate annotations and masks on four datasets (RefClef, RefCoco, RefCoco+, RefCocog).

Configuration

• Modify config/vito.yaml
  • output_dir, holding running results
  • refexp_data, which contains a folder and two subfolders: images/mscoco, images/saiapr_tc-12
  • refexp_anno, partitioned into subfolders of datasets, each of which containing json annotataions
  • refexp_mask, partitioned into subfolders of datasets, each of which containing binary masks

Training

• Run distributed training

    python train_distr.py exp_name=${your_exp_name} task=[bbox]   # bbox task
    
    python train_distr.py exp_name=${your_exp_name} task=[mask]   # mask task
    
    python train_distr.py exp_name=${your_exp_name} task=[depth]   # depth task
    
    # joint training
    python train_distr.py exp_name=${your_exp_name} task=[bbox,mask,depth]

Evaluation

• Evaluation on validation and test datasets

  python eval_testset.py exp_name=${your_exp_name} task={your_task}