Portable 3D document scanning device and method
US10935375B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2017 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Sep 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a portable 3-dimensional (3D) document scanning device and method. The portable 3D document scanning device includes a projector projecting light of a predetermined pattern onto a document, a 3D scanning camera capturing a pattern of the light projected onto the document and the document, and a control unit estimating a size of the captured document based on image data of the captured document, estimating a shape of the captured document based on the pattern of the projected light and the captured pattern of the light, and correcting the image data of the captured document based on the estimated size and the estimated shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.