Process for the stabilization of the images of a scene correcting offsets in grey levels, detection of mobile objects and harmonization of two snapshot capturing apparatuses based on the stabilization of the images
US7095876B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Feb 12, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/277
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A process for the electronic stabilization of the images of a scene of a snapshot capturing apparatus of an imaging system in which, in a terrestrial reference frame, the images of the scene captured by the apparatus are filtered in a low-pass filter, so as to retain only the low spatial frequencies thereof, and the optical flow equation is solved to determine the rotations to be imposed on the images in order to stabilize them with regard to the previous images is provided. The invention also relates to a process for correcting offsets in grey levels of a snapshot capturing apparatus of an imaging system whose images are stabilized according to the process of the invention, where the calculation of the offsets is deduced from the steps of the stabilization process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.