Method and apparatus for calculating features of image data
US8582880B2 · kind B2 · utility
1Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/806
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A feature extraction apparatus includes a pixel feature calculator configured to calculate a plurality of pixel features for each of pixels included in a plurality of pieces of image data; a co-occurrence frequency calculator configured to calculate co-occurrence frequencies of the pixel features by comparing the pixel features among corresponding pixels in the pieces of image data; and a co-occurrence frequency output unit configured to output the co-occurrence frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.