Patent · US Active

Borescope inspection method and device

US11301990B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

LUFTHANSA TECHNIK AG · DE

Inventors

Jan Oke Peters · Hamburg, DE
Michael Thies · Indianapolis, US
Sven Rasche · Hamburg, DE
Tomas Domaschke · Hamburg, DE
Thorsten Schueppstuhl · Hamburg, DE
Werner Neddermeyer · Echternach, LU
Soenke Bahr · Darmstadt, DE

Key dates

Filing date	Jan 14, 2020
Grant date	Apr 12, 2022
Priority date	—
Expiry date	Jan 14, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04N13/239
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for borescope inspection of a component uses a stereo borescope for recording the component. The method includes: generating two stereoscopic partial images by means of the stereo borescope; calculating 3D triangulation data from the two stereoscopic partial images; registering the 3D triangulation data to a 3D CAD reference model of the component captured by the stereo borescope, while determining a projection point; projecting 2D image data determined from the two stereoscopic partial images onto the 3D CAD reference model from the determined projection point; and determining damage by image analysis of the projected 2D image data and by ascertaining deviations of the registered 3D triangulation data vis-à-vis the 3D CAD reference model.

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