Rotary-wing drone provided with a video camera delivering stabilized sequences of images
US9555897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U2201/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The drone (10) comprises a camera with a hemispherical-field lens of the fisheye type pointing to a fixed direction (Δ) with respect to the drone body. A capture area (36) of reduced size is extracted from the image formed by this lens (42), the position of this area being function of the signals delivered by an inertial unit measuring the Euler angles characterizing the attitude of the drone with respect to an absolute terrestrial reference system. The position of this area is dynamically modified in a direction (44) opposite to that of the changes of attitude (38) of the drone detected by the inertial unit. The raw pixel data are then processed to compensate for the geometric distortions introduced by the fisheye lens in the image acquired in the region of the capture area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.