Updating map data from camera images
US9429438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2010 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Feb 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3837
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of updating map data entails capturing an image using a camera, determining a location of an object in the image, creating new map data to represent the object in the image, and updating a map database to include the new map data for the object in the image. This method may be implemented on a GPS-enabled wireless communications device having an onboard camera which can transmit the new map data to a map server for updating its map database. Determining the position of the object in the image relative to the wireless device may be accomplished using a rangefinder and compass, triangulation of multiple images of the object, or a stereoscopic camera. The accuracy of the GPS position fix may be improved by capturing images of recognizable objects for which location coordinates are available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.