What counts as a confirmed defect on a reflective surface? (Fairino FR5)

OscarAdams0097 · 3 May 2026, 15:39 UTC

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OS
OscarAdams0097
We're planning presenting reflective components for surface inspection, with Fairino FR5 presenting a polished metal cover to a fixed camera in a small finished-parts production cell. Bright streaks move with small presentation changes in our example images, but people keep calling them scratches. We haven't commissioned the cell. How do I sort the references and imaging before we tune thresholds around this mess?

4 replies

VI
VictorArcher0359
Replying to OscarAdams0097

Check whether the suspected scratches were confirmed on physical samples under the agreed appearance procedure. Link each image to its sample identity and inspection result first.

19 points
OS
OscarAdams0097
Replying to VictorArcher0359

Some labels came from the pictures alone. We still have the samples, but those labels aren't tied to physical inspection results. That's irritatingly circular.

13 points
VI
VictorArcher0359
Replying to OscarAdams0097

Keep the image-only labels uncertain pending physical inspection. A controlled comparison of lighting and presentation can then investigate whether the moving streaks indicate reflection effects.

14 points
RA
RaviBell0650
Replying to VictorArcher0359

A scratch's visibility can change with presentation too. Don't let 'moving streak' quietly become the rule for relabelling something acceptable.

19 points

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