Identifying document forms using digital fingerprints
US10402639B2 · kind B2 · utility
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21References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 26, 2018 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Sep 26, 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. For each feature, a pixel is plotted in a second image. 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.