Correction method, and device for correcting image data
US11468597B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2019 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Jul 2, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various embodiments include a correction method comprising: A) reading in data of an image of a calibration pattern recorded with an optical unit, the pattern including some structures; B) simulating a line through the image, the line extending through a reference point subdividing the line into half-lines, each intersecting the imaged structures; C) determining a first and a second sequence of measured values representing distances resulting from the intersection points on the half-lines line with respect to the reference point; D) determining a third and a fourth sequence of target values representing target distances of the intersection points; E) determining a mapping specification that at least approximately maps the target values of the third and fourth sequences to the measured values of the first and second sequences, or vice versa; and F) correcting image data of an image recorded using an optical unit using the mapping specification of step E).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.