System and method for media segment identification
US10867185B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 21, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Apr 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for identifying media segments using audio augmented image cross-comparison is disclosed, in which a media segment identifying system analyses both audio and video content, producing a unique identifier to compare with previously identified media segments in a media segment database. The characteristic landmark-linked-image-comparisons are constructed by first identifying pairs of audio landmarks separated by a characteristic, or landmark, time. Digital images associated the audio landmarks are then compared, with the combination providing a characteristic landmark-linked-image-comparison. The audio landmarks are audio peaks that exceed predetermined thresholds. A landmark-time is the time between adjacent pairs of audio peaks. The pair of images associated with the audio peaks are reduced in pixel size and converted to gray scale. Corresponding pixels are compared to form a numeric comparison. One image may be mirrored before comparison to reduce the possibility of null comparisons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.