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Code for RelPose++

[arXiv] [Colab] [Project Page] [Bibtex]

Setup Dependencies

We recommend using a conda environment to manage dependencies. Install a version of Pytorch compatible with your CUDA version from the Pytorch website.

git clone --depth 1 https://github.com/amyxlase/relpose-plus-plus.git
conda create -n relposepp python=3.8
conda activate relposepp
conda install pytorch torchvision torchaudio pytorch-cuda=11.7 -c pytorch -c nvidia -y
pip install -r requirements.txt

Then, follow the directions to install Pytorch3D here.

Run Demo

A Colab notebook is available here

To run locally, first download pre-trained weights:

mkdir -p weights
gdown https://drive.google.com/uc?id=1FGwMqgLXv4R0xMzEKVv3n3Aghn0MQXKY&export=download
unzip relposepp_weights.zip -d weights

The demo can be run on any image directory with 2-8 images. Each image must be associated with a bounding box. The colab notebook has an interactive interface for selecting bounding boxes.

The bounding boxes can either be extracted automatically from masks or specified in a json file.

Run demo by extracting bounding boxes from masks:

python relpose/demo.py  --image_dir examples/robot/images \
    --mask_dir examples/robot/masks --output_path robot.html

Run demo using the masked model (ignores background):

python relpose/demo.py  --image_dir examples/robot/images --model_dir weights/relposepp_masked \
    --mask_dir examples/robot/masks --output_path robot.html

Run demo with specified bounding boxes:

python relpose/demo.py  --image_dir examples/robot/images \
    --bbox_path examples/robot/bboxes.json --output_path robot.html

The demo will output an html file that can be opened in a browser. The html file will display the input images and predicted cameras. An example is shown here.

Pre-processing CO3D

Download the CO3Dv2 dataset from here.

Then, pre-process the annotations:

python -m preprocess.preprocess_co3d --category all --precompute_bbox \
    --co3d_v2_dir /path/to/co3d_v2
python -m preprocess.preprocess_co3d --category all \
    --co3d_v2_dir /path/to/co3d_v2

Training

Trainer should be run via:

torchrun --rdzv_backend=c10d --rdzv_endpoint=localhost:0 --nnodes=1 --nproc_per_node=8 \
relpose/trainer_ddp.py --batch_size=48 --num_images=8 --random_num_images=true  \
--gpu_ids=0,1,2,3,4,5,6,7 --lr=1e-5 --normalize_cameras --use_amp

Our released model was trained to 800,000 iterations using 8 GPUS (A6000).

Evaluation Directions

Please refer to eval.md for instructions on running evaluations.

Citing RelPose++

If you use find this code helpful, please cite:

@article{lin2023relposepp,
    title={RelPose++: Recovering 6D Poses from Sparse-view Observations},
    author={Lin, Amy and Zhang, Jason Y and Ramanan, Deva and Tulsiani, Shubham},
    journal={arXiv preprint arXiv:2305.04926},
    year={2023}
}