Graph-based video indexing to support querying with implicit relations
US12346374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2022 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Dec 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/784
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A video indexing system generates descriptive metadata for a video including identifiers for each of multiple detections that each correspond to a select one of multiple subjects that appear in the video. These detections are used to create relational graph data for the video, where the relational graph data includes nodes corresponding to each of the multiple subjects that appear in the video. A knowledge graph is queried with unique identifiers corresponding to the multiple subjects of the video to retrieve implicit relational data for each of the multiple subjects, and a merged relational graph is created by merging the implicit relational data retrieved from the knowledge graph with the relational graph data created for the video. A search engine uses the merged relational graph to identify video content relevant to a user query that is based on an implicit relation. Search results identifying the relevant content are presented on a user device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.