Device, system and method for subliminally projecting structured light patterns
US10271028B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2018 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | May 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device, system and method for subliminally projecting structured light patterns is provided. A computing device alters at least a portion of a plurality of content bitplanes to subtract a structured light bitplane therefrom, such that pixels of the structured light bitplane and the plurality of content bitplanes, when altered, sum to a same respective brightness as corresponding pixels of the plurality of content bitplanes before alteration. A a projector projects the structured light bitplane and the plurality of content bitplanes having the structured light bitplane subtracted therefrom. A camera captures images of the structured light bitplane as projected by the projector, for example to calibrate the projector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.