Methods and a computing device for determining whether a mark is genuine
US10235597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jan 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/224
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to various implementations, a computing device receives an image of a candidate mark and uses the image to create a profile of a feature of the mark. The computing device filters out, from the profile, all spatial frequency components except for a first band of spatial frequency components, resulting in a first filtered profile for the feature. The computing device repeats this filtering process for a second band of spatial frequency components, resulting in a second filtered profile for the feature, and may repeat this filtering process for further spatial frequency bands. The computing device compares the first filtered profile of the candidate mark with an equivalent first filtered profile of a genuine mark, and may repeat this process for further filtered profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.