Systems and methods for large scale, high-dimensional searches
US8428397B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/464
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for fast, large scale, high-dimensional searches are described. In some embodiments, a method comprises transforming components of a high-dimensional image descriptor into transformed components in a transform domain, allocating one or more bits available within a bit budget to a given transformed component within a first subset of transformed components as a function of a variance of the given transformed component, independently quantizing each transformed component within the first subset of transformed components, generating a compact representation of the high-dimensional image descriptor based, at least in part, on the independently quantized components, and evaluating a nearest neighbor search operation based, at least in part, on the compact representation of the high-dimensional image descriptor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.