Markers in 3D data capture
US10417786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2018 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jan 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A structured light projector includes an optical mask and a light emitter. The light emitter can be capable of illuminating the optical mask, and the optical mask can be capable of transforming the light from the emitter so as to provide structured light bi-dimensional coded light pattern that includes a plurality of feature types formed by a unique combination of feature elements. The projected light pattern includes one or more markers which include pairs of feature elements between which the epipolar distances are modified relative to distances between respective feature elements in non-marker areas of the pattern, and an appearance of feature elements within the marker and across the marker's edges is continuous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.