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[ECCV2024] Grounded Multimodal Large Language Model with Localized Visual Tokenization

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Groma: Grounded Multimodal Assistant

Groma: Localized Visual Tokenization for Grounding Multimodal Large Language Models
Chuofan Ma, Yi Jiang, Jiannan Wu, Zehuan Yuan, Xiaojuan Qi

Paper PDF Project Page

Groma is an MLLM with exceptional region understanding and visual grounding capabilities. It can take user-defined region inputs (boxes) as well as generate long-form responses that are grounded to visual context.

Groma presents a novel paradigm of grounded MLLMs. (a) LLM for localization (e.g., Kosmos-2, Shikra); (b) External modules for localization (e.g., Lisa); and (c) Visual tokenier for localization (Groma).

Contents

Performance

State-of-the-art performance on referring expression comprehension (REC) benchmarks among multimodal large language models.

Method RefCOCO RefCOCO+ RefCOCOg Avergae
val testA testB val testA testB val test
Shikra 87.01 90.61 80.24 81.60 87.36 72.12 82.27 82.19 82.93
Ferret 87.49 91.35 82.45 80.78 87.38 73.14 83.93 84.76 83.91
MiniGPT-v2 88.69 91.65 85.33 79.97 85.12 74.45 84.44 84.66 84.29
Qwen-VL 89.36 92.26 85.34 83.12 88.25 77.21 85.58 85.48 85.83
Groma 89.53 92.09 86.26 83.90 88.91 78.05 86.37 87.01 86.52

Installation

Clone the repository

git clone https://github.com/FoundationVision/Groma.git
cd Groma

Create the conda environment and install dependencies

conda create -n groma python=3.9 -y
conda activate groma
conda install pytorch==2.1.0 torchvision==0.16.0 torchaudio==2.1.0 pytorch-cuda=11.8 -c pytorch -c nvidia
pip install --upgrade pip  # enable PEP 660 support
pip install -e .

cd mmcv
MMCV_WITH_OPS=1 pip install -e .
cd ..

Install falsh-attention for training

pip install ninja
pip install flash-attn --no-build-isolation

Model Weights

To play with Groma, please download the model weights from huggingface.

We additionally provide pretrained checkpoints from intermediate training stages. You can start from any point to customize training.

Training stage Required checkpoints
Detection pretraining DINOv2-L
Alignment pretraining Vicuna-7b-v1.5, Groma-det-pretrain
Instruction finetuning Groma-7b-pretrain

Prepare Data

We provide instructions to download datasets used at different training stages of Groma, including Groma Instruct, a 30k viusally grounded conversation dataset constructed with GPT-4V. You don't have to download all of them unless you want to train Groma from scratch. Please follow instructions in DATA.md to prepare datasets.

Training stage Data types Datasets
Detection pretraining Detection COCO, Objects365, OpenImages, V3Det, SA1B
Alignment pretraining Image caption ShareGPT-4V-PT
Grounded caption Flickr30k Entities
Region caption Visual Genome, RefCOCOg
REC COCO, RefCOCO/g/+, Grit-20m
Instruction finetuning Grounded caption Flickr30k Entities
Region caption Visual Genome, RefCOCOg
REC COCO, RefCOCO/g/+
Instruction following Groma Instruct, LLaVA Instruct, ShareGPT-4V

Training

For detection pretraining, please run

bash scripts/det_pretrain.sh {path_to_dinov2_ckpt} {output_dir}

For alignment pretraining, please run

bash scripts/vl_pretrain.sh {path_to_vicuna_ckpt} {path_to_groma_det_pretrain_ckpt} {output_dir}

For instruction finetuning, please run

bash scripts/vl_finetune.sh {path_to_groma_7b_pretrain_ckpt} {output_dir}

Inference

To test on single image, you can run

python -m groma.eval.run_groma \
    --model-name {path_to_groma_7b_finetune} \
    --image-file {path_to_img} \
    --query {user_query} \
    --quant_type 'none' # support ['none', 'fp16', '8bit', '4bit'] for inference

Evaluation

For evaluation, please refer to EVAL.md for more details.

Citation

If you find this repo useful for your research, feel free to give us a star ⭐ or cite our paper:

@article{ma2024groma,
  title={Groma: Localized Visual Tokenization for Grounding Multimodal Large Language Models},
  author={Ma, Chuofan and Jiang, Yi and Wu, Jiannan and Yuan, Zehuan and Qi, Xiaojuan},
  journal={arXiv preprint arXiv:2404.13013},
  year={2024}
}

Acknowledgement

Groma is built upon the awesome works LLaVA and GPT4ROI.

LICENSE

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.