System and method for automatic alignment and projection mapping
US10089778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2015 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector and at least two cameras are mounted with fields of view that overlap a projection area on a three-dimensional environment. A computing device: controls the projector to project structured light patterns that uniquely illuminate portions of the environment; acquires images of the patterns from the cameras; generates a two-dimensional mapping of the portions between projector and camera space and by processing the images and correlated patterns; generates a cloud of points representing the environment using the mapping and camera positions; determines a projector location, orientation and lens characteristics from the cloud; positions a virtual camera relative to a virtual three-dimensional environment, corresponding to the environment, parameters of the virtual camera respectively matching parameters of the projector; and, controls the projector to project based on a virtual location, orientation and characteristics of the virtual camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.