Method and apparatus for spectral mixture resolution
US7933430B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Aug 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/35
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The spectral method for determining the concentrations of a substance in a mixture of any number of substances is defined by a chemical image having a plurality of pixels (520). The method includes steps of providing a spectrum for each of the n number of substances in the mixture (530), and obtaining the spectrum for one of the plurality of pixels, and calculating a plurality of estimated concentrations of each substance in the mixture as a function of the spectrum for each substance and the spectrum for the pixel, and calculating a deviation value for each of the plurality of estimated concentrations as a function of the spectrum of each of the number of substances in the mixture, and selecting the estimated concentration with the lowest deviation factor as a most likely concentration of each substance in the mixture (550).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.