Identifying points of interest in an image
US9977992B2 · kind B2 · utility
1Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/25
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Points of interest are identified in an image to characterize that image by dividing the image tiles consisting of adjacent pixels; finding within each tile the position of a pixel with an extremum value and ascribing that extremal value to the tile; identifying a tile with an extremal value which is more extreme than that of all adjacent tiles; and selecting as a point of interest the position within the image of the pixel with the extremum value in that identified tile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.