Export to Colmap

Export to Colmap

OpenMVG exports to Colmap's [Schoeneberger2016]_ SfM model format.

Once a sparse reconstruction has been computed you can convert OpenMVG's SfM output to Colmap's model format using openMVG_main_openMVG2Colmap:

.. code-block:: c++

$ openMVG_main_openMVG2Colmap -i Dataset/OpenMVGSfM/sfm_data.bin -o Dataset/ColmapSfM/model

This will create the following files in Dataset/ColmapSfM/model:

.. code-block:: text

model/
├-cameras.txt
├-images.txt
├-points3D.txt

Note: Colmap supports OpenMVG's PINHOLE_CAMERA, PINHOLE_CAMERA_RADIAL1 and PINHOLE_CAMERA_RADIAL3 camera models.

To open the scene in Colmap:

• File | Import model
• Specify the Dataset/ColmapSfM/model directory

To apply Colmap's MVS pipeline:

.. code-block:: c++

$ colmap image_undistorter --image_path Dataset/images --input_path Dataset/ColmapSfM/model --output_path Dataset/ColmapMVS $ colmap dense_stereo --workspace_path Dataset/ColmapMVS $ colmap dense_fuser --workspace_path Dataset/ColmapMVS

.. figure:: Colmap_result.jpg :align: center

Figure: Multiple View Stereo result using [Schoeneberger2016]_.