Calibration device for on-vehicle camera
US8280665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2009 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Oct 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A calibration device for an on-vehicle camera includes an image receiving portion receiving an image of an area around a vehicle taken by an on-vehicle camera, a viewpoint transformation portion performing a viewpoint transformation on the image to obtain a transformed image, a region setting portion setting a recognition target region on the transformed image according to coordinates of the calibration index set in accordance with vehicle models, where the recognition target region includes therein the calibration index, a calibration point detecting portion detecting a calibration point positioned within the calibration index included in the recognition target region, and a calibration calculating portion calibrating the on-vehicle camera in accordance with coordinates of the calibration point in a reference coordinate system and in accordance with coordinates of the calibration point in a camera coordinate system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.