Apparatus for determining the degree of consistency of a feature in a region of an image that is divided into discrete picture elements
US4747152A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | May 21, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/462
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns an apparatus for determining the degree of consistency of a feature in a region of an image that is divided into discrete picture elements, the feature being represented by vector valued signals, one for each picture element, the vector direction describing the feature class and the vector magnitude describing the certainty in the feature assertion. The invention is characterized by a first unit (4) for weighted summation of the vectors in the region after predetermined rotations thereof, a second unit (5) for weighted summation of the magnitudes of the vectors in the region, and a norming unit (6) for norming the output signal from the first summation unit with respect to the sum of the output signal from the second summation unit and a reference signal (FIG. 2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.