Image processing apparatus for processing photographed images
US8988745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0422
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus of the present invention acquires a photographed image of an object on which indicators have been arranged, detects the indicators from the photographed image with use of a comparison reference image for pattern matching prepared in advance, and instructs to perform predetermined processing based on the detected indicators. The indicators each have a pattern where influence of geometrical image distortion generated corresponding to a photographing distance or a photographing angle with respect to the object is restrained by a central portion of the photographed image, and the comparison reference image is a partial image corresponding to a central portion of the indicator. The indicators are detected from the photographed image by comparing the comparison reference image with the acquired photographed image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.