Target-less auto-alignment of image sensors in a multi-camera system
US9197885B2 · kind B2 · utility
20Cited by
4References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 20, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | May 20, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.