Method and device for identifying objects in digital images
US7283676B2 · kind B2 · utility
12Cited by
14References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2002 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Nov 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method for identifying objects in a digital image which is included in a sequence of images, luminance values of a current digital image are compared with at least one threshold value in order to create a current binarized image on the basis of the comparison. A quality measure for the current binarized image is also calculated, whereupon said at least one threshold value is updated on the basis of the quality measure for use in binarization of a subsequent image. The method can be realized in the form of a computer program, a computer program product, a device, and a hand-held apparatus for position determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.