Cascade recognition for personal tracking via unmanned aerial vehicle (UAV)
US9892322B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jul 17, 2017 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jul 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30196
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for tracking a subject using an unmanned aerial vehicle (UAV) are disclosed. An unmanned aerial vehicle (UAV) includes an onboard camera to capture/stream multiple images. An onboard visual recognition module isolates image elements by analyzing the captured images, and determines whether the image elements correspond or do not correspond to the subject. Current image elements corresponding to a subject are stored in a positive database, and non-corresponding current image elements are stored in a negative database. An onboard subject tracking module defines the chosen subject, determines attributes of the subject based on comparisons of image elements, and follows the subject by directing the attitude control system to adjust the velocity and orientation of the UAV based on the determined attributes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.