Video structuring by probabilistic merging of video segments
US7296231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2001 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Jun 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/785
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for structuring video by probabilistic merging of video segments includes the steps of obtaining a plurality of frames of unstructured video; generating video segments from the unstructured video by detecting shot boundaries based on color dissimilarity between consecutive frames; extracting a feature set by processing pairs of segments for visual dissimilarity and their temporal relationship, thereby generating an inter-segment visual dissimilarity feature and an inter-segment temporal relationship feature; and merging video segments with a merging criterion that applies a probabilistic analysis to the feature set, thereby generating a merging sequence representing the video structure. The probabilistic analysis follows a Bayesian formulation and the merging sequence is represented in a hierarchical tree structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.