Beautiful Dense Cloud but poor quality model

[heynewt]

Hi,

Have an unusal case with Photoscan.  Look at the 3 pictures.  Had no issues with camera alignment, and the dense cloud is almost perfect.  Creating the model, I set a "custom" face count of 800,000 faces, more than enough to get detail in the front part, but the final model looks terrible.

Usually I get beautiful models, so I'm scratching my head why this model is so poor.  Would love some advice.

[wojtek]

Your dense cloud and model look equally bad.

The results are poor because the surface is reflective and smooth (metashape needs noise and consistency to pair points and filter the depth correctly).

[Alexey Pasumansky]

Hello heynewt,

You can try depth maps based mesh generation in Metashape 1.5, it could produce better results for such model, however, wojtek has already mentioned general reasons causing the poor quality reconstruction for this project.

[heynewt]

Hi Alexy,

Thanks.  I've been doing a lot of work in Photoscan/Metashape for years.  From my experience, that's actually a pretty good dense cloud.  There's plenty of accurate detail even in the aluminum metal parts.  The model it produced simply doesn't reflect the detail in the point cloud.  And I've consistently gotten better models than what happened in this case.

That said, I'll try depth map model creation.  I'll also bring the cloud into Rhino and see what I get there.

Thanks again,
Robert