$ cd ~/catkin_ws/src
$ git clone https://github.com/ANYbotics/kindr
$ cd .. && catkin build -DCMAKE_BUILD_TYPE=Release -j3
● lightweight_filtering
as submodule, use "git submodule update --init --recursive"
$ cd ~/catkin_ws/src
$ git clone https://github.com/ethz-asl/rovio
$ cd rovio && git submodule update --init --recursive
2. Installation
rovio is set to 'stereo'. However, the 'stereo mode' doesn't work in my case. Fortunately, rovio supports changing 'stereo mode' <-> 'mono mode'. Let's change the rovio into 'mono'
in ~/rovio/CMakeLists.txt line 5, change
set(ROVIO_NCAM 2 CACHE STRING "Number of enabled cameras")
to
set(ROVIO_NCAM 1 CACHE STRING "Number of enabled cameras")
build from source (already cloned with the lightweight_filtering installation)