Photographing system, pattern detection system, and electronic unit
US8749691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photographing system includes: a photographing section photographing a subject to acquire a frame image including a subject image; and a matching section repeats image search through pattern matching between a template image and a subject image while sequentially changing a size ratio of the template image to the subject image, and obtains one or more size ratios at which patterns match each other, in a certain order of image search, and holds a size ratio having a largest value among such obtained size ratios as a first size ratio, and thereafter performs image search in a manner that pattern matching is performed at a first frequency in a range of a size ratio equal to or larger than the first size ratio, and is performed at a frequency lower than the first frequency in a range of a size ratio smaller than the first size ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.