Pattern matching method and pattern matching apparatus
US9135519B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2014 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/7515
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an aspect of the present invention, there is provided a pattern matching method of detecting an image of a detection target from a search image, comprising: obtaining a reference image of the detection target; generating the model edge image on a basis of the reference image; generating the edge extraction domain that is specified as a portion where the model edge image can exist by overlying a plurality of the model edge images obtained with at least one of rotating the model edge image within a predetermined range around a rotation center of the model edge image and translating the model edge image within a predetermined range; and performing pattern matching between the model edge image and the search edge image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.