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Deep Fundamental Matrix Estimation

This repository contains code for training a network as described in our paper:

Deep Fundamental Matrix Estimation
René Ranftl and Vladlen Koltun
European Conference on Computer Vision (ECCV), 2018

The trained network can be used to compute a fundamental matrix based on noisy point correspondences.

Setup

Create and activate conda environment:

conda env create -f environment.yml
conda activate dfe

Train

Training can be performed with the following command:

python train.py --dataset [dataset folders]

Dataset folders are assumed to be in COLMAP format. Multiple folders can be listed by separating them with a whitespace.

An example dataset can be found here: Family.

To get help:

python train.py -h

Test

python test.py --dataset [dataset folders] --model [path to model]

A pre-trained model that was trained on Tanks and Temples can be found in the models folder.

Creating your own dataset

The dataloader assumes that a dataset folder contains the following files:

reconstruction.db 
sparse/0/cameras.bin
sparse/0/images.bin

cameras.bin and images.bin are SfM reconstruction in COLMAP format.

reconstruction.db contains descriptors, matches, etc.

These files are automatically created when performing reconstruction using COLMAP. We found that better results are achieved with less aggressive filtering for feature matching than the default COLMAP settings. The recommended way to create a training set is:

  1. Run COLMAP to produce cameras.bin and images.bin and initial reconstruction.db
  2. Run get_features.sh to produce a training set with higher outlier ratios to replace reconstruction.db

Citation

Please cite our paper if you use this code in your research:

@InProceedings{Ranftl2018,
    author = {Ranftl, Rene and Koltun, Vladlen},
    title = {Deep Fundamental Matrix Estimation},
    booktitle = {The European Conference on Computer Vision (ECCV)},
    year = {2018}
}

License

MIT License

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