Intelligent interest point pruning for audio matching
US8831763B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | May 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/87
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System and methods for intelligently pruning interest points are disclosed herein. The systems include generating a plurality of distorted audio samples and associated distorted interest points based upon a clean audio sample. Interest points that are common to sets of distorted interest points are retained with interest points not robust to distortion discarded. The disclosed systems and methods therefore can provide for a scalable audio matching solution by eliminating interest points in reference sample fingerprints. The set of pruned interest points are robust to distortion and the benefits of both scalability and accuracy can be had.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.