Image retrieval method
US10289702B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2012 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Feb 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for linking a hash code to a portion of an image. A plurality of lattice points is selected in a multidimensional lattice to form a smallest enclosing region about a feature vector representing the portion of the image and a lattice point is determined from the selected plurality of lattice points according to a distribution criteria. The determined lattice point is common to the smallest enclosing region and a region of the lattice adjacent to the smallest enclosing region located within a query radius distance of the feature vector. When the feature vector is located within the query radius of a query vector the feature vector is considered a match. The method assigns the feature vector to the determined lattice point and stores a link between a hash code associated with the determined lattice point and the portion of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.