Video concept classification using audio-visual grouplets
US8867891B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Oct 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/23418
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for determining a semantic concept classification for a digital video clip, comprising: receiving an audio-visual dictionary including a plurality of audio-visual grouplets, the audio-visual grouplets including visual background and foreground codewords, audio background and foreground codewords, wherein the codewords in a particular audio-visual grouplet were determined to be correlated with each other; analyzing the digital video clip to determine a set of visual features and a set of audio features; determining similarity scores between the digital video clip and each of the audio-visual grouplets by comparing the set of visual features to any visual background and foreground codewords associated with a particular audio-visual grouplet, and comparing the set of audio features to any audio background and foreground codewords associated with the particular audio-visual grouplet; and determining one or more semantic concept classifications using trained semantic classifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.