Projector keystone correction method, apparatus and system, and readable storage medium
US12114107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Apr 7, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a projector keystone correction method, including: obtaining first coordinate values of a plurality of position points on a projective plane through an RGBD (Red, Green, Blue-Depth) camera in a first coordinate system; determining second coordinate values of the position points according to a predetermined conversion relation and the first coordinate values in a second coordinate system; and using an included angle between a fitted plane obtained by fitting according to the second coordinate values of the plurality of position points and a coordinate plane of the second coordinate system to achieve keystone correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.