Method and device for the invariant-affine recognition of shapes
US8687920B2 · kind B2 · utility
3Cited by
26References
18Claims
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Key dates
| Filing date | May 18, 2009 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jul 30, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/11
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for the recognition of objects in at least one digital image includes: a) simulating from the digital image a plurality of digital rotations and at least two digital tilts different from 1 in order to develop a simulated image for each rotation-tilt pair; and b) applying an algorithm generating values that are invariant in translation, rotation and zoom onto the simulated images in order to determine so-called SIF (scale invariant features) local characteristics used for recognizing objects. The SIFT method can be used in step b.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.