Method and system for improving video metadata through the use of frame-to-frame correspondences
US7313252B2 · kind B2 · utility
15Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2006 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | May 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/74
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for improving the accuracy and timeliness of video metadata by incorporating information related to the motion of the camera as derived from the video imagery itself. Frame-to-frame correspondences are used to accurately estimate changes in camera pose. While the method and system do not require geo-registration, geo-registration results, if available, may be considered in processing the video images and generating improved camera pose estimates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.