Systems and methods for visual verification
US11749049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jul 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/206
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system comprising: a document holder; an image sensor directed toward the document holder; a polarized filter between the image sensor and the document holder; a filter motor configured to rotate the polarized filter; one or more processors; and at least one memory having stored thereon computer program code that, when executed by the one or more processors, instructs the one or more processors to: control the filter motor to rotate the polarized filter; control the image sensors to capture a plurality of images of a document within the document holder, the plurality of images corresponding to a respective relative orientations of the polarized filter to the document; identify a feature of the document; and output, in response comparing respective visual characteristics of the feature of the document to corresponding expected visual characteristics of the first feature for the document, an indication of a verification of the document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.