Method and apparatus for retrieving a video and audio scene using an index generated by speech recognition
US6728673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2003 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | May 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/7844
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A video retrieval data generation apparatus includes an extractor that is configured to extract a characteristic pattern from a voice signal synchronous with a video signal. The video retrieval data generation apparatus also includes an index generator that is configured to set the voice signal for a voice period as a processing target. The index generator is further configured to prepare standard voice patterns of a subword corresponding to a plurality of subwords, detect, for each subword, a characteristic pattern similar to a standard voice pattern at each of the voice periods, and generate, for each subword, an index containing time synchronization information corresponding to a position where the similar characteristic pattern is detected. The video retrieval data generation apparatus also includes a multiplexer that is configured to multiplex video signals, voice signals and indexes to output in a data stream format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.