Method for estimating the movement of a traveling observation instrument flying over a celestial body
US9135716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2010 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30181
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method for estimating the movement of an observation instrument on-board a vehicle flying over a celestial body, the instrument including at least two strips with different lines of sight, each strip realizing the acquisition of successive image lines making up a composite image, parts of the composite images representing substantially a same scene of the celestial body. The estimated movement is determined by optimization of an image similarity function that associates, to a given movement hypothesis, a similarity between values of matched pixels of at least a pair of composite images. The method includes, for each movement hypothesis considered during the optimization: determining, for the at least one pair of composite images, at least one spatio-temporal transformation using the considered movement hypothesis and a geometric model of the observation instrument, and matching the pixels of the at least one pair of composite images using the at least one spatio-temporal transformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.