Pattern-free camera calibration for mobile devices with accelerometers
US8786707B1 · kind B1 · utility
10Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Apr 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for generating values for one or more camera calibration parameters is described. The camera calibration parameters may include focal length, lens distortion, and optical center of the lens. A plurality of photographs are captured from a camera on a device which includes an accelerometer. Common features are determined between the captured photographs. Accelerometer data is analyzed for each captured photograph. The values for the camera calibration parameters are generated based on the common features and the accelerometer data and stored for future use with various applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.