Image artifact mitigation in scanners for entry control systems
US11196965B2 · kind B2 · utility
5Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2020 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Mar 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for imaging includes illuminating a vehicle undercarriage with illumination in an atmospheric absorption band, imaging the vehicle undercarriage to form an image, wherein scanning includes filtering out illumination returned from the vehicle undercarriage that is outside the atmospheric absorption band. The method includes forming an image with the filtered illumination returned from the vehicle undercarriage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.