Laser scan with images - mesh quality

Hello guys,

 

I use this post for my questions because I’ve done few projects combining LiDAR and Photogrammetry.

Usually I only use LiDAR for the meshing step and photogrammetry for the texture step, exactly like you. And I thought the depth map calculations (Alignment) wouldn’t change anything on the sparse point cloud and therefore wouldn’t modify the mesh.

This project is about to scan a cathedral front. And here are my tests on a statue from the front with the following settings :

  • LiDAR only

 

  • Photogrammetry Only

 

  • LiDAR/Photogrammetry (Full settings “enable”)

 

  • LiDAR/Photogrammetry (Mesh disable for photogrammetry)

 

Before this project I used the same settings without any problem.

The “Photogrammetry Only” quality is explained by the large dimensions of the cathedral

 

Maybe I used wrong settings this time, but I can’t combine LiDAR and Photogrammetry correctly. Do you have an idea?

 

See attached pictures, thank you!