Limited-context-based identifying key frame from video sequence
US9064186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2010 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Apr 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/49
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An example apparatus is caused to receive a video sequence of a plurality of frames, and perform a number of operations as each of at least some of the frames is received but before all of the frames are received. The apparatus is caused to calculate a score for the frame, and compare the score for the frame to a predefined threshold. The apparatus is caused to cause output of the frame as a key frame in an instance in which the frame is received within a specified period of time and the score for the frame is above the predefined threshold. Otherwise, in an instance in which none of the scores for frames received within the specified period of time is above the predefined threshold, the apparatus is caused to cause output of one of the frames received within the specified period of time as a key frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.