Three-dimensional scanning device using structured light
US10739131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A three-dimensional scanning device including: a projection unit for projecting a wide-area pattern and a local pattern on an object to be measured; an image acquisition unit for acquiring an image of the object on which the wide-area pattern and the local pattern are projected; a detection unit for detecting the locations of a plurality of first IDs that are identifiers formed in the shape that can be distinguished utilizing image information in a space within a certain range in the image of the object, on which the wide-area pattern is projected, acquired by the image acquisition unit; a collection unit for collecting data on a brightness value within a predetermined certain distance with respect to the center point of the detected first ID; and an operation unit for determining a first ID value of the first ID using information of the collection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.