[TRLC-DK1] LeRobot camera calibration and reprojection error for builders labs (intermediate)
TRLC-DK1 and LeRobot discussion on camera calibration, reprojection error, multi-view consistency, and when calibration is good enough to trust.
DK1 teams using LeRobot frequently reach a point where calibration technically completes, but the reprojection error or multi-view alignment still feels suspicious for serious data work.
How are you validating camera calibration quality in DK1 and LeRobot workflows before collecting important episodes?
Please share what reprojection error means in your setup, how you test real-world alignment after calibration, and when you decide calibration must be rerun.
If you reply, include one exact calibration symptom and one exact validation step or threshold that helped.
Searchers usually want to know whether a given error value is acceptable. Context about your task and camera layout will help a lot.
If your team found that reprojection error looked fine but task alignment still failed, explain how you caught that gap.
A simple post-calibration benchmark is often more reusable than a long explanation of the math.