| # EMAG2 completion |
|
|
| **Recovering Missing Regions of Earth Magnetic Anomaly Grid data (EMAG2) Using RePaint based on Diffusion Model** |
|
|
| [](https://doi.org/10.1016/j.bdes.2025.100004) |
| [](https://github.com/fangyuanmao/EMAG2-Completion) |
| [](https://huggingface.co/datasets/FerrisMao/EMAG2-completion) |
|
|
| ## Set up |
|
|
| ### 1. Environment |
|
|
| ``` |
| pip install numpy torch blobfile tqdm pyYaml pillow pandas # e.g. torch 1.7.1+cu110. |
| ``` |
|
|
| ### 2. Download pretrained model and EMAG2 data. |
|
|
| | Name | Note | |
| | :-----------------: | :------------------------------------------: | |
| | [Completion results(OneDrive)](https://1drv.ms/f/c/2e4d56a3d20d5c20/EmXvznPFpKRMu9dRpMWMkf8BtLq1n7uEUsy8QO8FBjaR1Q?e=UoTLF8) | Our completion results including csv and pdf | |
| | [Completion results(HuggingFace)](https://huggingface.co/datasets/FerrisMao/EMAG2-completion) | FerrisMao/EMAG2-completion | |
| | [Public EMAG2 data](https://www.ncei.noaa.gov/emag-survey-page) | EMAG2 data | |
| | [Pretrained model](https://1drv.ms/f/c/2e4d56a3d20d5c20/Etyk9PQRhqlEmF1s1v8L6rQBURaacy-HfRvMCk7QxZBhrA?e=pOIINp) | Pretrained guided-diffusion model | |
|
|
| Place the pretrained model under `./pretrain` and original EMAG2 data under `./EMAG2`. |
|
|
| ### 3. Run example |
|
|
| We prepare an easy test for quick evaluation. The input images and masks are in `./data`. |
|
|
| ``` |
| bash shell/easy_test.sh |
| ``` |
|
|
| ## Completion method |
|
|
| ### 1. Step 0: Data preprocess |
|
|
| Download EMAG2_V3 and place it in `./EMAG2`. Run the below command, you can preprocess the EMAG2_V3. |
|
|
| ```shell |
| python scripts/preprocess.py |
| ``` |
|
|
| ### 2. Step 1: Global completion |
|
|
| ```shell |
| bash shell/step1.sh |
| ``` |
|
|
| ### 3. Step 2: Local completion |
|
|
| ```shell |
| bash shell/step2.sh |
| ``` |
|
|
| ## FAQ |
|
|
| **How to apply it for other datasets?** |
|
|
| If you want train new completion model on a new dataset, it is recommended to follow [guided-diffusion](https://github.com/openai/guided-diffusion) repository to obtain guided-diffusion model, then follow our completion method. |
|
|
| ## Acknowledgements |
|
|
| Our code is built upon [RePaint](https://github.com/andreas128/RePaint) and [guided-diffuion](https://github.com/openai/guided-diffusion.git). We thank the authors for their excellent work. |
|
|
| If you have any question, feel free to contact fymao@zju.edu.cn or fangyuanmaocs@gmail.com . |
|
|
