Identifying document forms using digital fingerprints
US10115010B1 · kind B1 · utility
0Cited by
25References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2018 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed to identify a form document in an image using a digital fingerprint of the form document. To do so, the image is evaluated to detect features of the image and determine a polygon bounding each feature. For each polygon, pixels are plotted in a second image based on coordinates of a center of the polygon. The second image is the digital fingerprint of the form. To identify the form corresponding to the digital fingerprint, the digital fingerprint may be compared to digital fingerprints of known forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.