Question: Is there a way to specify region of interest after building sparse cloud?

[vik748]

I am trying to use open SFM to create 3D models of icebergs. Here is an example of the resulting Sparse cloud

As you can see, the iceberg of interest is the one in the center, the other smaller pieces of ice move around and aren't consistent geometrically with the main iceberg. Also there are underwater and far off points that are being tracked. The dense cloud look like:

Is there a way to specify a region of interest around the main iceberg. Ideally I would be able to:

1. In the sparse cloud, trim points not on the main iceberg.
2. Redo the bundle adjustment with the points on the main iceberg only.
3. Create dense cloud only within the region of interest.

[pierotofy]

I don't think there's a way do to this; but you can use a software such as cloudcompare to trim the point cloud afterwards.

[vik748]

I was able to achieve the desired results by modifying the reconstruction json file using a python script.

[YanNoun]

Hi @vik748 ,

Thank you for providing an example of your workflow, we're going to see in region-of-interest (ROI) depthmaps generation is a feature that could be interesting for more users.

Yann