Identification of shadowing on flat-top volumetric objects scanned by laser scanning devices
US10866322B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 31, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jun 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/521
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are techniques for detecting presence of shadowing introduced in a system. The techniques entail geometrically projecting, along a virtual or actual propagation direction of laser beam scanning, points of a lower convex hull (CH) planar object in a direction toward a higher CH planar object to establish projection locations of the points of the lower CH planar object along the propagation direction. Detection of whether the projection locations are in proximity to locations of points of the higher CH planar object is performed. In response to detecting locations in proximity for each source laser beam scanning, a shadowing event indication is generated to alert a user of the system that shadowing has been introduced in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.