Aligning grid lines of a table in an image of a filled-out paper form with grid lines of a reference table in an image of a template of the filled-out paper form
US10417489B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Dec 31, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/412
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatuses, and embodiments related to aligning an image of a table of a form with an image of a table of a template of the form. Automatically extracting data entered in fields of a table of a form by a user can be aided by matching the form with a template of the form. The form template can have a digitized representation that identifies locations of fields of the form, and that identifies labels of the fields. Matching the form with the form template can enable locations and labels of fields of the form to be identified based on the digitized representation. However, matching the form with the form template may require matching the table of the form with the table of the form template, and matching two tables can be challenging. For example, the tables can be rotated, warped, scaled, etc. relative to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.