Patent · US Active

Reading a one-dimensional optical code using a black-and-white profile formed from grayscale value profiles

US12307755B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

SICK AG · DE

Inventors

Marcel HAMPF · Waldkirch, DE
Romain MÜLLER · Waldkirch, DE
Thorsten Falk · Waldkirch, DE
Julian Zimmer · Waldkirch, DE

Key dates

Filing date	May 16, 2023
Grant date	May 20, 2025
Priority date	—
Expiry date	May 16, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/454
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for reading a one-dimensional optical code, wherein image data including the code are captured and a plurality of grayscale value profiles through the code are obtained from the image data, a black-and-white profile is formed from the grayscale value profiles by binarization, and the code content of the code is read from the black-and-white profile, wherein, for preparing the binarization, a sharpened grayscale value profile is first generated from the plurality of grayscale value profiles, the sharpened grayscale value profile having, as compared to the original image data, increased resolution, sharper edges, and more pronounced extrema, and the sharpened grayscale value profile is binarized to form the black-and-white profile.

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