3D image capture apparatus with cover window fiducials for calibration
US10602127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2019 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/246
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A 3D imaging apparatus with enhanced depth of field to obtain electronic images of an object for use in generating a 3D digital model of the object. The apparatus includes a housing having mirrors positioned to receive an image from an object external to the housing and provide the image to an image sensor. The optical path between the object and the image sensor includes an aperture element having apertures for providing the image along multiple optical channels with a lens positioned within each of the optical channels. The apparatus also includes a transparent cover positioned within the optical path and having a plurality of fiducials. The depth of field of the apparatus includes the cover, allowing the fiducials to be used to calibrate the apparatus or verify and correct the existing calibration of it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.