Mesh for merged components

Hi all,

When I reconstruct a merged component (two co’s) the mesh is missing a lot of features that are present in the reconstructed individual components. All of the cams are being registered.

The subject was imaged on a turntable, both views on different backgrounds, and merged the two top and bottom components with three control points.

Any ideas as to why a large amount of features are missing from the merged component? Here are some images of what I’m getting:

Mesh/texture of top component 165/165 cams:

 

Mesh/texture of bottom component 181/181 cams:

 

mesh/texture of merged components 346/346 cams:

point cloud of merged components 346/346 cams

You can see from the merged component reconstruction that a large amount of the sides and front are (left direction are missing)

Any recommendations much appreciated, thanks.

 

Zach,

(hi - this is Heinrich from Palaeo3D)

 

it seems that your merging of the two components is not perfect. As a consequence, the “background deletion” algo kills part of the model, as does the misalignment along the edges.

 

May I recommend shooting the object not flat on a turntable, but on a pedestal (ethafoam works really well), so that you can take pictures from 0° (or even slightly below)? Then, you should be able to align all images in one chunk, without merging with CPs, which is often suboptimal.

Or shoot three or four positions: top, bottom, left, (right) down. More overlap, more chance at a one-chunk alignment that avoids the problems you have here.

Or just try to use masking (process first dataset -> create mask, second dataset -> create mask, third…; then create new project, import images with mask and let RC do the magic :))

 

Here you can see my project of Woolly rhinoceros (23k+ images in total)

https://skfb.ly/6ULt6

 

Good luck

 

Nino

 

Hi Zach,

I would agree with the advice above, we have this great video, which might help you with a mask workflow https://youtu.be/xxsdbzBwWLE