Methods and apparatus for machine vision high accuracy searching
US5602937A · kind A · utility
90Cited by
29References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/75
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved machine vision apparatus, of the type having a search element capable of estimating the location of a template image in a candidate image, includes an element that accepts signals representative of the template and of a candidate image. Those signals are applied to the search element to obtain its estimate of location. A correction element responds to the resulting approximation by the location-finder for generating a signal representative of more exacting location based on a known relationship between the location-finder output and more exacting locations of the template in a model of the candidate image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.