Calibration device, method, and program for on-board camera
US8908037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2010 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Oct 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30264
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An on-board camera calibration device with high productivity is provided which allows speedy calibration of the on-board camera with high precision with a simple construction. Based on an actual coordinate specified in a projecting plane of a camera coordinate system and a converted coordinate obtained by converting an initial coordinate of a calibration point with using unfixed camera adjustment values, the adjustment values corresponding to angles of rotation about one or two axes from among three axes of the camera coordinate system are calculated and the camera adjustment values are updated. Based on the actual coordinate and the converted coordinate in accordance with the updated camera adjustment values, the adjustment values corresponding to angles of rotation about the remaining axes of the camera coordinate system is calculated and the camera adjustment values are updated. When the predetermined completion condition is satisfied, the updated camera adjustment values are fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.