Apparatus and method for obtaining spectral characteristics
US8908176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2013 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | May 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/466
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectral characteristic obtaining apparatus includes a detection unit detecting light quantities in plural wavelength bands from a measurement target, a storage unit storing pre-obtained spectral characteristics of the measurement target, a calculation unit calculating a primary transformation matrix from the light quantities and the pre-obtained spectral characteristics of at least one reference sample and a secondary transformation matrix from one of the pre-obtained spectral characteristics corresponding to a primary wavelength band and another one of the pre-obtained spectral characteristics corresponding to a secondary wavelength band, an estimation unit estimating the spectral characteristics of the measurement target by performing a primary estimation on the light quantities in the plural wavelength bands by using the primary transformation matrix, performing a secondary estimation on a result of the primary estimation by using the secondary transformation matrix, and compositing a result of the secondary estimation with the result of the primary estimation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.