| 摘要 |
PROBLEM TO BE SOLVED: To provide large numbers of clients with real-time identification of media objects embedded in streaming media by operating a "Media Identifier" on concurrent media streams. SOLUTION: Identification of media objects is provided to individual clients by comparing client-generated traces computed from media stream samples with a large database of stored, precomputed traces (i.e., "fingerprints") of known identification. A searchable dynamic trace cache is used to limit the database queries necessary to identify particular traces. This trace cache caches only one copy of recent traces along with the database search results, either positive or negative. Cache entries are then removed as they age. COPYRIGHT: (C)2006,JPO&NCIPI
|
