Image geo-registration for absolute navigation aiding using uncertainy information from the on-board navigation system
US10809064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Nov 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for feeding back and incorporating the uncertainty distribution of the state estimate output by the INS in the image geo-registration process to handle larger navigation errors, provide a full six degree of freedom position and attitude absolute navigation update for the navigation system and provide a more accurate update for autonomous aerial, underwater or ground vehicles. Generating the update simultaneously for multiple images may provide a more robust solution to address any observability issues that may be present, the ability to fuse different sensor modalities and in general more accurate updates. Key frames may be used to improve the computational efficiency of the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.