Method and apparatus for constructing a digital elevation model utilizing ground points captured by ground-based LiDAR
US9830509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2015 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Nov 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30184
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and computer program product are provided to construct a digital elevation model utilizing ground points captured by ground-based light detection and ranging (LiDAR). In the context of a method, a plurality of ground points are extracted from a data set captured by ground-based LiDAR to construct a digital elevation model. Each ground point includes positional information including an altitude. The method also includes identifying one or more road structures that are altitudinally offset from surrounding terrain based upon the plurality of ground points and modifying the ground points of the digital elevation model that are representative of the one or more road structures that are altitudinally offset from the surrounding terrain. The method further includes at least partially filling regions in the digital elevation model that lack ground points captured by ground-based LiDAR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.