Calibration for vision in navigation systems
US11282225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30256
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method includes receiving a video comprising image frames depicting multiple objects. The video is captured by a video capture device moving relative to the surface of the Earth while the video is captured. A geographic location of the video capture device is received for each of the image frames and an angular orientation of the video capture device is determined based on the image frames. The determining the angular orientation includes determining a line in the image frames of the video for each object of a plurality of the multiple objects. The determined line corresponds to two-dimensional positions of the object in the image frames. The computer-implemented method includes determining a vanishing point of the image frames based on the determined lines and determining the angular orientation of the video capture device based on the determined vanishing point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.