Nodes

Refine Cloud

Drop sparse points whose reprojection error is too high.

Filters the sparse cloud by per-point reprojection error. Auto Track in, Auto Track out, so it sits between a solve and whatever comes next.

Max Error (px)

Points whose reprojection error exceeds this many pixels are dropped when the cloud is imported. Default is 1.0. Lower is stricter: fewer points, but cleaner ones.

Press Analyze to see how many points survive a given threshold before committing.

When To Use It

Before Densify, because fewer bad points going in means fewer bad points out and a faster run.

Before Output 3D, when you want a tidy cloud in your scene rather than every point the solver produced.

Note that this filters the cloud, not the solve. The camera motion is unchanged. To actually improve a solve, use Enhance Auto Track.