Systems and methods for localization using surface imaging
US11100673B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 21, 2016 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Sep 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Implementations described and claimed herein provide localization systems and methods using surface imaging. In one implementation, a raw image of a target surface is captured using at least one imager. The raw image is encoded into a template using at least one transform. The template specifies a course direction and an intensity gradient at one or more spatial frequencies of a pattern of the target surface. The template is compared to a subset of reference templates selected from a gallery stored in one or more storage media. A location of the target surface is identified when the template matches a reference template in the subset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.