Optical 3-D sensor for fast and dense shape capture
US10404967B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jun 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical 3-D sensor for very fast, highly resolved and dense capture of the surface shape of objects in 3-D space. One image or a plurality of images recorded at the same time in a single shot method suffice for the recording. Using this, it is possible, as a matter of principle, to record 3-D data with the frame rate of the employed cameras, i.e. to build a 3-D video camera. The optical 3-D sensor has a projector projecting a line pattern onto the object, and K cameras, which each record an image of the object illuminated by the projector. The line pattern contains lines in a number of R directions and the K cameras are disposed to span up to K×R triangulation sensors. The triangulation sensors are coupled by a control and evaluation unit by way of the common line pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.