[bug] StructureFromMotion crashes @ "Compute scene structure color" phase

[kmlbgn]

Meshroom crashes at the very end of the StructureFromMotion node, when Compute scene structure color appears.

This seem related to #183 but is actually not because the example shown in this issue actually have the "sfm.abc" file being exported.
In my case, it just crashes there, and I'm left with the intermediate steps .abc files.

(...) 

Compute scene structure color
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|

( crashes )

[kmlbgn]

I ran the computation with trace verbose level
Seems like some error when reading original files.

Compute scene structure color
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-125.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-025.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-231.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-061.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-050.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-134.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-109.tif
[22:19:26.390662][debug] [IO] Read Image: C:/Users/XXX/Desktop/XXX Rhino 3D/FFMPEG/DJI_0859/image-047.tif

Which seems related to potentially spaces in the folder name. Problem it seem not possible to change the original folder name in the attributes which means I have to recompute everything ? If yes that's super annoying..

[kmlbgn]

Yes, there is no way to delete the first node CameraInt and replace it by new one, nor replacing the pictures and renaming the sfmdata folder to the original (already computed one). Which means i have to recompute everything unless I missed something.

If this is the case, it's pretty disappointing guys. The pipeline workflow is a very good idea and it should definitely allow to leverage its modularity by allowing manual setup of SFMdata and feature folders in case something goes wrong and users want to reuse the already computed data.

Also something to consider, it seems that when drawing a Link between 2 nodes, there is no way to delete it other than by ctrl+z. Which is not practical for later modification.

[mugulmd]

Hi @kmlbgn !

I don't think your problem is related to spaces, we've already had that bug but we haven't found the time to solve it yet.
However you can always disable the computation of the scene structure color, if you click on the StructureFromMotion node you have an option for that in the attribute editor 😄

As for removing links between nodes, you have a "Remove" option if you right-click on the link (but I'm definitely taking your remark into account, we should add some more intuitive way to delete the links).

[kmlbgn]

The problem was that I had to move my folder to a external SDD because of #1969 , and so the structure color where looking for the original file path which, I suppose, are contained in the first node that I tried to change. Thanks for the info though i'll look more into the parameters next time. And YES! the Remove is definitely not obvious! Thanks for the info

As for what I did:
Basically I just wanted to delete all images and replace with new ones. But the problem i'm pointing in my previous message is that your interface is rather rigid and don't allow this kind of manipulation. In my case, the image are the same so no recomputation needed. So I would recompute node 1 and just tell the next node to pick data from previous feature folder. I think these kind of manipulation are handy.

Also guys, unless i missed something again, it is not possible to bulk delete images !! We cannot select bunch of them, nor use SHIFT or anything. I had to delete by clicking the delete button for 5 min (256 pic)

Other than this so far it's very good UX and well designed.

[cbentejac]

Hi @kmlbgn,

Jumping in on that comment:

Also guys, unless i missed something again, it is not possible to bulk delete images !! We cannot select bunch of them, nor use SHIFT or anything. I had to delete by clicking the delete button for 5 min (256 pic)

There actually is an option to clear the Image Gallery easily. In the "File" menu, the "Clear Images" option will remove all the images in just one click.

Hope that helps!

[kmlbgn]

Can you cherry pick ? Or its all or nothing

[cbentejac]

You can't cherry-pick: it deletes all the images.

There currently isn't any option that allows you to select a few images and remove them all at once, but you can navigate the gallery using the keyboard's arrows and remove the selected image with the "Delete" key, which is more convenient (and faster) than right-clicking and selecting "Remove" every time.

[fabiencastan]

In the meantime, you can disable the color estimation on the SFM node as it is here only for visualization and it is useless in the pipeline.