Camera intrinsic calibration
US11887208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Jul 7, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments provide image display systems and methods for one or more camera calibration using a two-sided diffractive optical element (DOE). More specifically, embodiments are directed to determining intrinsic parameters of one or more cameras using a single image obtained using a two-sided DOE. The two-sided DOE has a first pattern on a first surface and a second pattern on a second surface. Each of the first and second patterns may be formed by repeating sub-patterns that are lined when tiled on each surface. The patterns on the two-sided DOE are formed such that the brightness of the central intensity peak on the image of the image pattern formed by the DOE is reduced to a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.