Meshroom: Georeferencing the scene

[pomat]

Is there a way to assign known coordinates to some key points in the scene in order to georeference all the model?

[natowi]

You can use CCTAGs or Meshlab to scale a scene.

[pomat]

Thank you.

Sorry, I need to perform orientation measures on some features of the cloud, so I don't need to rescale it but to orient it in a defined coordinate system.

Using the SfMTransform node with "from_markers" transformation method can I pick the markers directly from the SfM cloud in Meshroom?

[natowi]

You can orient and scale a scene with a SfMTransform node. You can not manually pick markers, they will be detected automatically if placed in the scene. Applying a real Coordinate system (like UTM) is not supported within Meshroom. You have to convert the point cloud/mesh to a supported format to reference it in another software like CloudCompare (https://danielgm.net/cc/forum/viewtopic.php?t=2739 https://www.youtube.com/watch?v=PjiJBqckv90 https://www.youtube.com/watch?v=_eG-oj22YrY)

https://github.com/alicevision/meshroom/issues/705

[pomat]

Is it possible to geocode the scene knowing the position of the cameras?
It would be a good option in cases where it is not possible to rely on markers in the scene.

[natowi]

No, at the moment there is no such feature implemented.

[natowi]

@pomat Here is a tutorial that uses Meshroom, Blender+BlenderGIS and QGIS for 3D georeferencing: https://www.youtube.com/watch?v=XAUc831V-Nk (it´s in Italian ;) )
But I´d prefer a native solution within Meshroom to this workaround, too.

[pomat]

Thank you but I can't open the video on youtube.
It says "not available"

[natowi]

@pomat sorry, it´s https://www.youtube.com/watch?v=XAUc831V-Nk