Verfahren und System zur Erkennung von Kantendefekten an mindestens einem Werkstück

Details

Veröffentlichungs-Nr.

EP4814862

Anmeldetag

25. März 2025

Veröffentlichung

30. September 2026

Rechtsraum

EP

Abstract

In a first aspect, a method for detecting edge defects (208a, 208b, 400) on at least one workpiece (200) is provided. The method comprises the steps of providing imaging data of at least part of an edge (202, 402) of the at least one workpiece (200), generating an edge intensity image based on the imaging data and generating a colour difference image based on the imaging data. Further, the method comprises the steps of segmenting the edge intensity image and the colour difference image to generate a respective binary edge intensity image or mask and a respective binary colour difference image or mask, and combining the binary edge intensity image and the binary colour difference image and generating a combined binary mask. Further steps of the method are fitting a curve (206) to the at least part of an edge (202, 402) based on the combined binary mask, and detecting edge defects (208a, 208b, 400) on the at least part of an edge (202, 402) of the at least one workpiece (200) based on the curve (206) fitted to the at least part of an edge (202, 402). In a further aspect a system (500) for detecting edge defects (208a, 208b, 400) on at least one workpiece (200) is provided.

Anmelder

Firmen

Leica Microsystems CMS GmbH
Leica Instruments (Singapore) Pte Ltd.

Land

🇩🇪 Deutschland