System and method for providing virtual pan-tilt-zoom, PTZ, video functionality to a plurality of users over a data network
US11283983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Nov 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for providing virtual pan-tilt-zoom, PTZ, video functionality video to a plurality of users (60a-60c) over a data network (30) is provided. The system (100) comprises one or more network video cameras (10a-10e) positioned to make a video recording of a real-world target field (20), or a respective subarea thereof, and output a respective raw video segment onto the data network (30), a back-end camera calibration unit (42) which is adapted to obtain a relative position and orientation of the respective network video camera (10a-10e) with respect to a three dimensional world space for the target field (20), and to save the obtained relative position and orientation as metadata for the respective network video camera (10a-10e), a back-end video processing unit (44), connected to the data network (30) and adapted to receive the respective raw video segment(s) recorded by the network video camera(s) (10a-10e), and to store or buffer video contents of the respective raw video segment(s) in a back-end video storage (41), a back-end video streaming unit (46) adapted to stream the stored or buffered video contents and the saved metadata for the respective network video camera (10a-…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.