System and methods for large-scale automated indoor map data georeferencing
US11190902B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2020 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Nov 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/029
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of large-scale automated indoor map data georeferencing. A building floorplan is received in a digital format. A non-georeferenced vector polygon building footprint is extracted from the building floorplan. A plurality of georeferenced vector polygons representing individual building footprints in a selected area is provided. The non-georeferenced vector polygon building footprint is compared to identify a matching georeferenced building footprint polygon. The building floorplan is rasterized and clipped to the extent of the building footprint polygon to form a clipped floorplan raster. Real-world geographic coordinates of the matched georeferenced vector polygon are applied to the clipped floorplan raster to form the georeferenced indoor map data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.