Systems and methods for obtaining and using information from map images
US9721157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Oct 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/422
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Under one aspect, an interface program stored on a computer-readable medium causes a computer system with a display device to perform the functions of: displaying an image of a region of a metric vector space; obtaining a set of pixel extents in the image that contain apparent textual annotations; for each pixel extent of the set, obtaining a confidence score that the pixel extent actually contains a textual annotation; and displaying the set of pixel extents in a ranked list based on the corresponding confidence scores. In some embodiments, the program further causes the computer system to perform the functions of, for at least one pixel extent of the set, at least one of automatically generating a text string based on the apparent textual annotation, and accepting user input entering a text string based on the apparent textual annotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.