Generating a binary descriptor representing an image patch
US8687892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2012 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Aug 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/467
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments described herein provide a system and method for generating a binary descriptor representing an image patch (200). The method includes determining a first specified number of features within an image patch (200), performing mean intensity difference tests for the first specified number of features, and generating a binary string of the first specified number of features for the image patch (200) based on the mean intensity difference tests. The method includes dividing the image patch (200) into a number of sub-patches (204), and, for each sub-patch (204), determining a second specified number of features within the sub-patch (204), performing mean intensity difference tests for the second specified number of features, and generating a binary string of the second specified number of features. The method also includes transforming the binary strings for the image patch (200) and the sub-patches (204) into a binary descriptor representing the image patch (200).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.