Automatic camera identification from a multi-camera video stream
US9154710B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Nov 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for receiving a current video frame of a program video having a plurality of scene cuts switching between video segments originating from respective cameras of a plurality of cameras and automatically identifying the camera from which the current video frame originated. The apparatus having a feature database storing predetermined features for a plurality of cameras filming a program video originating from the plurality of cameras, a recognition unit receiving a current video frame of the program video, extracting features from the current video frame, and comparing the features to the previously stored features and a camera model estimator computing an estimated camera model based on corresponding feature pairs and previously stored features, wherein if the estimated camera model is within a predetermined threshold of a stored camera model for one of the plurality of cameras, that camera is identified as originating the current video frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.