Method and apparatus for performing geo-spatial registration
US6512857B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1998 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for accurately mapping between camera coordinates and geo-coordinates, called geo-spatial registration. The system utilizes the imagery and terrain information contained in the geo-spatial database to precisely align geographically calibrated reference imagery with an input image, e.g., dynamically generated video images, and thus achieve a high accuracy identification of locations within the scene. When a sensor, such as a video camera, images a scene contained in the geo-spatial database, the system recalls a reference image pertaining to the imaged scene. This reference image is aligned very accurately with the sensor's images using a parametric transformation. Thereafter, other information that is associated with the reference image can easily be overlaid upon or otherwise associated with the sensor imagery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.