Enhancing documents portrayed in digital images
US11620439B2 · kind B2 · utility
Inventors
Key dates
| Filing date | May 18, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | May 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed toward systems and methods that efficiently and effectively generate an enhanced document image of a displayed document in an image frame captured from a live image feed. For example, systems and methods described herein apply a document enhancement process to a displayed document in an image frame that result in an enhanced document image that is cropped, rectified, un-shadowed, and with dark text against a mostly white background. Additionally, systems and method described herein determine whether a stored digital content item includes a displayed document. In response to determining that a stored digital content item does include a displayed document, systems and methods described herein generate an enhanced document image of a displayed document included in the stored digital content item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.