Patent · US Active

Method for deterministic image inspection of printed products of a machine for processing printing substrates

US11288793B2 · kind B2 · utility

0Cited by

1References

6Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Frank Schumann · Heidelberg, DE
Jan Krieger · Heidelberg, DE
Bennet Carstensen · Sandhausen, DE
Peter Eisele · Östringen, DE

Key dates

Filing date	Feb 12, 2021
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Feb 12, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30144
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for inspecting printed products of a machine for processing printing substrates includes recording and digitizing produced printed products by using at least one image sensor and analyzing the printed products by using a computer to find potential defects. Defects in the printed products are detected by the computer by comparing the recorded and digitized printed image with a digital reference image, analyzing occurring deviations, and marking defective printed products in a manner suitable for removal. The computer spatially subdivides every digitized printed image into regions with deviations, calculates the time required to analyze every one of the regions, and terminates the analysis of a digitized printed image when the time required to analyze the regions exceeds a predefined value of time per digitized printed image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.