Reduction of false alarms in PCB inspection

Image analysis – Applications – Manufacturing or product inspection

Reexamination Certificate

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Details

C348S126000, C702S035000, C250S559450

Reexamination Certificate

active

10363982

ABSTRACT:
A method for automatically optically inspecting an electrical circuit (12), comprising: acquiring at least one optical image of an electrical circuit (12); generating at least one first inspection image from the at least one image and determining regions of candidate defects (236) therefrom; generating at least one additional inspection image for regions surrounding candidate defects (236), said at least one additional inspection image at least partially including optical information not included in the at least one first inspection image; and determining whether the candidate defect (236) is a specious defect by inspecting the at least one additional inspection image.

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