How to deal with thin objects like paper or cardboard?

[jupp2000]

Hi all,
i have an image set of a room, one of the objects is a thin painting cardboard on a tripod.
The images seem to be OK, but just the cardboard has a lot of holes and it is incomplete.
How can i give a little more thickness to that region?

Thanks in advance
Stephan

[OndrejTrhan (otrhan)]

Hi @jupp2000
Please check these posts:

Thin objects, not enough photos?

Hi there, You can probably fix this with higher precision by taking the photos closer, the holes in thin objects are caused by the internal mesh and the exterior mesh intersecting. The closer you get to the object the more precise the scan.

500×500 2.84 KB

Hello Olivier,  it is more about a proper capturing scenario. It is very difficult to reconstruct such object using photogrammetry in general. Based on the principles of photogrammetry you need to make sure that every part of the object is visible from at least two images, therefore also bottom sides of each blade, also inner parts. Problem is also a reflexive surface of the leaves. You can find some tips how to capture shiny surfaces on this forum, for example: https://support.capturingrealit…

[jupp2000]

Hi Ondrey,
thanks for looking at it!
I agree with you, it could caused by front / back intersecting.
But because a competitor software can actually recognize it in the dense cloud and you can set the thickness of the mesh, (pls. see images) my hope is, that there is a thickness function
somewhere in the RC settings.

[OndrejTrhan (otrhan)]

Unfortunately there is no such function in RealityCapture.
I can add it as a feature request if you wish.

[jupp2000]

That would be great.
Let me know, if you need a sample image set.
Again, thanks for looking at this issue!

Best regards
Stephan

[OndrejTrhan (otrhan)]

The request was added to the database.