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Patent

Automated quality control and selection

A non-destructive inspection method for inline inspection of an object comprises moving an object in between a radiation source and an image detector and through a three-dimensional scanner field of view, imaging the object using the image detector to obtain a projection radiograph of an internal structure of the object, scanning an exterior surface of the object using the 3D scanner, fitting a shape model of the object to a point cloud provided by the 3D scanner to obtain a surface model of the exterior surface, creating a solid model of the surface model by taking a grey value distribution of a reference object into account, simulating a reference radiograph from the solid model and comparing the reference and projection radiographs to detect internal deviations of the object.
Patent Publication Number: US10520452
Year filing: 2019
Year approval: 2019
Year publication: 2019
Status: Assigned
Technology domains: Measurement, Analysis of biological materials, Audio-visual technology, Computer technology
Validated for IOF-key: Yes
Attributed to: Associatie KULeuven, Associatie Universiteit & Hogescholen Antwerpen, Associatie Universiteit Gent