Installation

Dependencies

CMake >= 3.17
COLMAP 3.8

Follow official document to install COLMAP. Make sure to use the tag 3.8. (COLMAP has been under active development since summer 2023, so we currently only support COLMAP 3.8 or before)

PoseLib

git clone --recursive https://github.com/vlarsson/PoseLib.git
cd PoseLib
mkdir build && cd build
cmake ..
sudo make install -j8

HDF5
```
sudo apt-get install libhdf5-dev
```
OpenCV (only for installing pytlbd, it’s fine to remove it from requirements.txt and use LIMAP without OpenCV)
```
sudo apt-get install libopencv-dev libopencv-contrib-dev libarpack++2-dev libarpack2-dev libsuperlu-dev
```
Python 3.9 + required packages

Install PyTorch >= 1.12.0 (Note: LIMAP has not been tested with PyTorch 2)
- CPU version
```
pip install torch==1.12.0 torchvision==0.13.0
```
- Or refer to https://pytorch.org/get-started/previous-versions/ to install PyTorch compatible with your CUDA version
Install other Python packages
```
git submodule update --init --recursive
pip install -r requirements.txt
```

pip install -Ive .

Alternatively:

mkdir build && cd build
cmake -DPYTHON_EXECUTABLE=`which python` ..
make -j8

To test if LIMAP is successfully installed, try import limap and it should reports no error.

python -c "import limap"