Transformation invariant media matching
US9508023B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2014 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Apr 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This disclosure relates to transformation invariant media matching. A fingerprinting component can generate a transformation invariant identifier for media content by adaptively encoding the relative ordering of interest points in media content. The interest points can be grouped into subsets, and stretch invariant descriptors can be generated for the subsets based on ratios of coordinates of interest points included in the subsets. The stretch invariant descriptors can be aggregated into a transformation invariant identifier. An identification component compares the identifier against a set of identifiers for known media content, and the media content can be matched or identified as a function of the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.