Coded localization systems, methods and apparatus
US9534884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Jan 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/48
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A coded localization system includes a plurality of optical channels arranged to cooperatively image at least one object onto a plurality of detectors. Each of the channels includes a localization code that is different from any other localization code in other channels, to modify electromagnetic energy passing therethrough. Output digital images from the detectors are processable to determine sub-pixel localization of the object onto the detectors, such that a location of the object is determined more accurately than by detector geometry alone. Another coded localization system includes a plurality of optical channels arranged to cooperatively image partially polarized data onto a plurality of pixels. Each of the channels includes a polarization code that is different from any other polarization code in other channels to uniquely polarize electromagnetic energy passing therethrough. Output digital images from the detectors are processable, to determine a polarization pattern for a user of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.