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SysCV · Jun 16, 2022 · a22980d · a22980d
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diff --git a/.github/workflows/close_stale_issues.yml b/.github/workflows/close_stale_issues.yml
@@ -0,0 +1,26 @@
+# https://github.com/actions/stale
+# https://github.com/marketplace/actions/close-stale-issues
+# https://docs.github.com/en/actions/managing-issues-and-pull-requests/closing-inactive-issues
+
+name: close stale issues
+on:
+  schedule:
+    - cron: "30 1 * * *"
+
+jobs:
+  close-issues:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/stale@v4.1.0
+        with:
+          days-before-issue-stale: 30
+          days-before-issue-close: 14
+          stale-issue-label: "stale"
+          stale-issue-message: "This issue is stale because it has been open for 30 days with no activity."
+          close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale."
+          days-before-pr-stale: -1
+          days-before-pr-close: -1
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,18 @@
+# PyCharm
+.idea/
+
+# DROR download folder
+alpha_0.45/
+
+# experiments folder
+experiments/
+
+# snowflake download folder
+npy/
+
+# wet ground example folder
+tools/wet_ground/example_data/
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
diff --git a/.gitmodules b/.gitmodules
@@ -0,0 +1,15 @@
+[submodule "lib/LiDAR_fog_sim"]
+	path = lib/LiDAR_fog_sim
+	url = git@github.com:MartinHahner/LiDAR_fog_sim
+[submodule "lib/LISA"]
+	path = lib/LISA
+	url = git@github.com:MartinHahner/LISA
+[submodule "lib/cadc_devkit"]
+	path = lib/cadc_devkit
+	url = git@github.com:MartinHahner/cadc_devkit
+[submodule "lib/OpenPCDet"]
+	path = lib/OpenPCDet
+	url = git@github.com:MartinHahner/OpenPCDet
+[submodule "lib/pa_aug"]
+	path = lib/pa_aug
+	url = git@github.com:MartinHahner/pa-aug.pytorch
diff --git a/LICENSE b/LICENSE
diff --git a/README.md b/README.md
@@ -1,7 +1,5 @@
 Created by [Martin Hahner](https://sites.google.com/view/martinhahner/home) at the [Computer Vision Lab](https://vision.ee.ethz.ch/) of [ETH Zurich](https://ethz.ch/).
 
-☝️ ___Our code will be published no later than June 2022.___
-
 [![Support Ukraine](https://img.shields.io/badge/Support-Ukraine-FFD500?style=flat&labelColor=005BBB)](https://opensource.fb.com/support-ukraine)  [![arXiv](https://img.shields.io/badge/arXiv-2203.15118-00ff00.svg)](https://arxiv.org/abs/2203.15118) ![visitors](https://visitor-badge.laobi.icu/badge?page_id=SysCV.LiDAR_snow_sim)
 
 [![PapersWithCode](https://img.shields.io/endpoint.svg?url=https://paperswithcode.com/badge/lidar-snowfall-simulation-for-robust-3d/3d-object-detection-on-clear-weather)](https://paperswithcode.com/sota/3d-object-detection-on-clear-weather?p=lidar-snowfall-simulation-for-robust-3d) <br>
@@ -15,6 +13,56 @@ Created by [Martin Hahner](https://sites.google.com/view/martinhahner/home) at t
 📣 Oral at [CVPR 2022](https://cvpr2022.thecvf.com/). <br>
 Please visit our [paper website](https://trace.ethz.ch/lidar_snow_sim) for more details.
 
+<img src="teaser.gif" width="850">
+
+## Overview
+
+    .
+    ├── calib                     # contains the LiDAR sensor calibration file used in STF
+    │   └── ...
+    ├── lib                       # contains external libraries as submodules
+    │   └── ...
+    ├── splits                    # contains the splits we used for our experiments
+    │   └── ...
+    ├── tools                     # contains our snowfall and wet ground simulation code
+    │   ├── snowfall
+    │   │   ├── geometry.py
+    │   │   ├── precompute.py
+    │   │   ├── sampling.py
+    │   │   └── simulation.py
+    │   └── wet_ground
+    │       ├── augmentation.py
+    │       ├── phy_equations.py
+    │       ├── planes.py
+    │       └── utils.py
+    ├── .gitignore
+    ├── .gitmodules
+    ├── LICENSE
+    ├── pointcloud_viewer.py      # to visualize LiDAR point clouds and apply various augmentations
+    ├── README.md
+    └── teaser.gif
+
+**Datasets supported by [pointcloud_viewer.py](pointcloud_viewer.py):**
+- [H3D](https://usa.honda-ri.com/H3D)
+- [A2D2](https://www.a2d2.audi/a2d2/en.html)
+- [KITTI](http://www.cvlibs.net/datasets/kitti/eval_object.php?obj_benchmark=3d)
+- [LyftL5](https://self-driving.lyft.com/level5/prediction/)
+- [Pandaset](https://pandaset.org/)
+- [nuScenes](https://www.nuscenes.org/nuscenes)
+- [Argoverse](https://www.argoverse.org/data.html#tracking-link)
+- [ApolloScape](http://apolloscape.auto/tracking.html)
+- **[SeeingThroughFog](https://www.cs.princeton.edu/~fheide/AdverseWeatherFusion/)** &nbsp;:arrow_left: works best
+- [WaymoOpenDataset](https://waymo.com/open/) (via [waymo_kitti_converter](https://github.com/caizhongang/waymo_kitti_converter))
+
+**Note: <br> The snowfall and wet ground simulation is only tested on the [SeeingThroughFog](https://www.cs.princeton.edu/~fheide/AdverseWeatherFusion/) (STF) dataset.** <br>
+To support other datasets as well, code changes are required.
+
+## License
+
+This software is made available for non-commercial use under a Creative Commons [License](LICENSE).<br>
+A summary of the license can be found [here](https://creativecommons.org/licenses/by-nc/4.0/).
+
+
 ## Citation(s)
 
 If you find this work useful, please consider citing our paper.
@@ -38,23 +86,98 @@ You may also want to check out our earlier work <br>
 }
 ```
 
+## Getting Started
+
+### Setup
+
+1) Install [anaconda](https://docs.anaconda.com/anaconda/install/).
+
+2) Execute the following commands.
+```bash
+# Create a new conda environment.
+conda create --name snowy_lidar python=3.9 -y
+
+# Activate the newly created conda environment.
+conda activate snowy_lidar
+
+# Install dependencies.
+conda install matplotlib pandas plyfile pyaml pyopengl pyqt pyqtgraph scipy scikit-learn tqdm -c conda-forge -y
+pip install PyMieScatt pyquaternion
+
+# Clone this repository (including submodules!).
+git clone git@github.com:SysCV/LiDAR_snow_sim.git --recursive
+cd LiDAR_snow_sim
+```
+
+3) If you want to use our precomputed snowflake patterns, you can download them (2.3GB) as mentioned below.
+```bash
+wget https://www.trace.ethz.ch/publications/2022/lidar_snow_simulation/snowflakes.zip
+unzip snowflakes.zip
+rm snowflakes.zip
+```
+
+4) If you want to use [DROR](https://ieeexplore.ieee.org/document/8575761) as well, <br>
+you need to install [PCL](https://pointclouds.org/) or download the point indices (215MB) as mentioned below.
+```bash
+wget https://www.trace.ethz.ch/publications/2022/lidar_snow_simulation/DROR.zip
+unzip DROR.zip
+rm DROR.zip
+```
+
+5) Enjoy [pointcloud_viewer.py](pointcloud_viewer.py).
+```bash
+python pointcloud_viewer.py
+```
+
+6) If you also want to run inference on the [STF dataset](https://www.cs.princeton.edu/~fheide/AdverseWeatherFusion/), a couple of extra steps are required. <br>
+Note: For unknown reasons, this can roughly slow down the augmentation(s) by a factor of two.
+```bash
+# Download our checkpoints (265MB)
+wget https://www.trace.ethz.ch/publications/2022/lidar_snow_simulation/experiments.zip
+unzip experiments.zip
+rm experiments.zip
+
+# Install PyTorch.
+conda install pytorch==1.10.1 torchvision==0.11.2 torchaudio==0.10.1 cudatoolkit=11.3 -c conda-forge -c pytorch -y
+
+# Install spconv
+pip install spconv-cu113
+
+# build pcdet
+cd lib/OpenPCDet
+python setup.py develop
+cd ../..
+```
+
+
+### Disclaimer
+
+The code has been successfully tested on
+- Ubuntu 18.04.6 LTS + CUDA 11.3 + conda 4.13.0
+- Debian GNU/Linux 10 (buster) + conda 4.13.0
+- MacOS Big Sur 11.6.6 + conda 4.13.0
+
+
+## Contributions
+Please feel free to suggest improvements to this repository.<br>
+We are always open to merge useful pull request.
+
 ## Acknowledgments
 
 **This work is supported by [Toyota](https://www.toyota-europe.com/) via the [TRACE](https://www.trace.ethz.ch/) project.**
 
 The work also received funding by the [AI-SEE](https://www.ai-see.eu/) project with national funding from
-- the [Austrian Research Promotion Agency (FFG)](https://www.ffg.at/), 
-- [Business Finland](https://www.businessfinland.fi/), 
-- [Federal Ministry of Education and Research (BMBF)](https://www.bmbf.de/bmbf/en/home/home_node.html) and 
-- [National Research Council of Canada Industrial Research Assistance Program (NRC-IRAP)](https://nrc.canada.ca/en/support-technology-innovation). 
+- the [Austrian Research Promotion Agency (FFG)](https://www.ffg.at/),
+- [Business Finland](https://www.businessfinland.fi/),
+- [Federal Ministry of Education and Research (BMBF)](https://www.bmbf.de/bmbf/en/home/home_node.html) and
+- [National Research Council of Canada Industrial Research Assistance Program (NRC-IRAP)](https://nrc.canada.ca/en/support-technology-innovation).
 
 We also thank the [Federal Ministry for Economic Affairs and Energy](https://www.bmwi.de/Navigation/EN/Home/home.html) for support within <br>
-[*VVM-Verification and Validation Methods for Automated Vehicles Level 4 and 5*](https://www.vvm-projekt.de/en/project), a [PEGASUS](https://pegasus-family.de/) family project. 
+[*VVM-Verification and Validation Methods for Automated Vehicles Level 4 and 5*](https://www.vvm-projekt.de/en/project), a [PEGASUS](https://pegasus-family.de/) family project.
 
 [Felix Heide](https://www.cs.princeton.edu/~fheide/) was supported by an [NSF CAREER Award](https://www.cs.princeton.edu/news/national-science-foundation-awarded-professor-felix-heide-nsf-career-award) (2047359), <br>
 a [Sony Young Faculty Award](https://www.sony.com/en/SonyInfo/research-award-program/), and a [Project X Innovation Award](https://aspire-report.princeton.edu/engineering/project-x-fund).
 
 We thank Emmanouil Sakaridis for verifying our derivation of occlusion angles in our snowfall simulation.
 
 [<img src="https://user-images.githubusercontent.com/14181188/160494058-9a965ac4-3ae3-4633-9d3c-25ef8462286f.png" height="40">](https://ethz.ch) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [<img src="https://user-images.githubusercontent.com/14181188/160494439-cca6665b-0732-4dda-90d9-1d3c77e7f6f8.png" height="40">](https://www.princeton.edu)  &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [<img src="https://user-images.githubusercontent.com/14181188/160494968-189c96cc-0a34-4e56-96c7-3a33ea439919.png" height="40">](https://www.mpi-inf.mpg.de)  &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [<img src="https://user-images.githubusercontent.com/14181188/160495259-f60ee657-3d04-40a8-abad-d8a9c42dd8fc.png" height="40">](https://www.kuleuven.be)
-