Patent · US Active

Method for carrying out a shading correction and optical observation device system

US11295484B2 · kind B2 · utility

1Cited by

0References

13Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Dominik Scherer · Aalen, DE
Susanne Kohlhammer · Blaustein, DE
Stefan Saur · Aalen, DE

Key dates

Filing date	Sep 26, 2019
Grant date	Apr 5, 2022
Priority date	—
Expiry date	Feb 1, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30096
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for correcting a shading in a digital image of a three-dimensional observation object obtained by at least one image sensor of an optical observation device is provided. The three-dimensional observation object is illuminated by illumination light and an intensity distribution, and an inhomogeneity in an image brightness is present in the digital image of the three-dimensional observation object. The method includes ascertaining a topography of the three-dimensional observation object, correcting the inhomogeneity in the image brightness of the digital image based on the topography of the three-dimensional observation object and the intensity distribution of the illumination light. In addition, an optical observation system is provided to perform the method.

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