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alicevision / Meshroom

3D Reconstruction Software
http://alicevision.org
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Use SLAM output for Dense reconstruction #1103

Closed Sachet12345 closed 3 years ago

Sachet12345 commented 3 years ago

Hi, I am new to this field and I was wondering if its possible to use sparse SLAM outputs such as orbslam3 and get a dense pointcloud using meshroom?

I would be thankful if anyone could provide me any resources or reading material.

natowi commented 3 years ago

Best use the original images if available to do the complete photogrammetry pipeline in Meshroom. The only benefit of SLAM I can see at the moment is speed. Using Meshroom to compute the depthmap (required for the dense point cloud) takes time, so you can use the full Meshroom pipeline to begin with.

Similar question: https://github.com/alicevision/meshroom/issues/837

I think you can convert your camera poses to the Meshroom format. This is experimental and not officially supported: https://github.com/alicevision/meshroom/wiki/Using-known-camera-positions

stale[bot] commented 3 years ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

stale[bot] commented 3 years ago

This issue is closed due to inactivity. Feel free to re-open if new information is available.

nikste commented 2 years ago

only getting into this deeper now as well, it seems though, if i want to produce a dense point cloud from some car mounted camera video footage, then slam can provide some stuff like loop closure, which meshroom does not, right?