Troubleshoot visible assembly verification failures
Separate clipped views, duplicate candidates, reversed spatial rules and stale assembly events before weakening an inspection threshold.
Machine vision troubleshooting
Separate calibration, image quality and decision thresholds in inspection failures.
Separate clipped views, duplicate candidates, reversed spatial rules and stale assembly events before weakening an inspection threshold.
Diagnose undercounts and overcounts from saved masks; separate touching parts, glare splits, area filtering and tray artifacts.
Separate edge-selection bias, optical perspective and calibration mismatch when repeated dimensional readings disagree with an independent reference.
Separate optical ambiguity, moving liquid, crop changes and stale results before changing a level threshold or replacing the camera.
A low calibration fit residual does not establish dimensional accuracy across the field. Test independent reference distances at production positions and heights.
Threshold tuning must balance defective escapes and good-part rejects. Overall accuracy can conceal escapes when most samples are good.
Height relative to a fitted datum can change when the datum ROI includes the feature or loses data. Validate geometry and invalid-point handling before tuning a pass threshold.
An uncertainty budget connects a reported dimension to the effects that could change it. Do not substitute pixel resolution or repeatability alone for total uncertainty.
Trace false-complete and false-missing results through visibility, masks, label mapping, BOM revisions and package-event identity.
Trace a false pass through the original image, ROI and component mask; distinguish fixture artifacts, missing parts and obscured evidence.
Find whether a disappearing gap comes from real capture evidence, coordinate drift or processing that merely paints over the defect in a derived mask.
Find the earliest color mismatch in acquisition, channel conversion, mask or class rule before changing thresholds to force the expected SKU.
Many displayed decimal places describe output resolution, not accuracy. Separate fixed-part repeatability, repositioning variation and error against an independent reference.
Separate reflection, registration drift and genuine surface changes by replaying the earliest divergent image, not by raising the final reject threshold.
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Engineering review
Send sample images, your current setup and the check that failed. Include field of view, working distance, line speed and acceptance criteria for a practical review.
Send samples for engineering review