Patent · US Active

Method for calibrating a digital optical imaging system having a zoom system, method for correcting aberrations in a digital optical imaging system having a zoom system, and digital optical imaging system

US9652847B2 · kind B2 · utility

1Cited by

0References

12Claims

0Family size

Assignee

Carl Zeiss Microscopy GmbH · DE

Inventors

Johannes Winterot · Jena, DE
Thomas MILDE · Nausnitz, DE
Max Funck · Weimar, DE
Toufic Jabbour · Aalen, DE

Key dates

Filing date	Aug 1, 2014
Grant date	May 16, 2017
Priority date	—
Expiry date	Jun 20, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10148
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for calibrating a digital optical imaging system, comprising at least one motorized or coded zoom system and an image sensor, to a method for correcting aberrations in such an imaging system, and to an optical imaging system which is configured to carry out the methods according to the invention. During the calibration method, a reference object is recorded in various zoom settings and the image is corrected pixel-wise with digital-optical means using a previously determined model. To this end, distortion correction coefficients and image stability correction coefficients are ascertained. The real total magnification of the system is ascertained from the corrected image. The model ascertained in the calibration process also serves for correcting aberrations during operation of the imaging system.

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