Hyperspectral imaging unmixing
US8659656B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, circuits, and systems for time encoder-based unmixing of hyperspectral imaging data are disclosed. A method of unmixing hyperspectral imaging data includes receiving mixed image data of one or more pixels. The mixed image data is generated by an imaging device that captures hyperspectral data. The mixed image data includes sensed spectral band intensities of materials in an area represented by a particular pixel. The mixed image data is converted from first analog domain signals into pulse domain signals. A solution to a mixing equation in the pulse domain is generated to identify abundances of one or more of the materials based on the sensed spectral band intensities. The sensed spectral band intensities are compared to reference spectral band intensities of a set of considered materials. The solution is converted from a pulse domain into an analog domain as second analog domain signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.