Document feature repository management
US11379534B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Dec 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A plurality of documents is received. From one or more documents within the plurality, a set of image features is extracted. A document feature repository is generated by storing one or more sets of image features, by document. A document search query is received. The document search query is pre-processed to generate a set of variable document search queries. The document feature repository is searched using the set of variable document search queries. The search results are presented to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.