Irreversible digital fingerprints for preserving object security
US11983957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2021 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Mar 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/53
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various techniques employ digital fingerprints, alone or in conjunction with other data related to a physical object, to characterize the physical object in a way allows an identity of the physical object to be confirmed or authenticated within a threshold of confidence when the physical object is encountered at a subsequently after a digital fingerprint thereof was previously ingested, without capture, retention and/or reference to certain types or categories of characterizing information which may be of a sensitive nature and/or subject to misuse or abuse. Such digital fingerprints may include feature vectors and non-positional characterization values, while advantageously omitting positional information that would otherwise allow recreation of a recognizable image of the physical object or an image from which one or more immutable characteristics or traits (e.g., physical appearance, color, race, ethnicity, gender, age) of the physical object may be discerned, and hence denominated as irreversible digital fingerprints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.