Video signature based on image hashing and shot detection
US8837769B2 · kind B2 · utility
2Cited by
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15Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jun 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/46
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In accordance with an embodiment, a method of comparing a first group of frames to a second group of frames includes electronically receiving the first group of frames, selecting a group of frames from the first group of frames as a first key frame set, calculating a hash distance between an image hash for each frame in the first key frame set to an image hash of each frame of a second key frame set taken from second group of frames, and choosing frames in the first group of frames with a minimum hash distances to respective reference frames to form a series of minimum hash distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.