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US 9,316,628 B2Granted
Spectroscopic characterization of seafood
AssigneeViavi Solutions Inc.
InventorsNada A. O'Brien, Charles A. Hulse, Heinz W. Siesler, Changmeng Hsiung
Life of this patent
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Abstract
A method and apparatus for field spectroscopic characterization of seafood is disclosed. A portable NIR spectrometer is connected to an analyzer configured for performing a multivariate analysis of reflection spectra to determine qualitatively the true identities or quantitatively the freshness of seafood samples.
Claims30
A method comprising:
- obtaining, by a device and from a near infrared (NIR) spectrometer, a reflection spectrum of a seafood sample;
- performing, by the device, a multivariate pattern recognition analysis of the reflection spectrum;
- determining, by the device and based on performing the multivariate pattern recognition analysis, a matching spectrum by comparing the reflection spectrum to a library of known identity spectra corresponding to a plurality of seafood samples,
- the library of known identity spectra being generated based on collecting a first plurality of spectra for at least one seafood sample of the plurality of seafood samples and performing an operation on the first plurality of spectra to generate a second plurality of spectra corresponding to the known identity spectra;
- and
- identifying, by the device and based on determining the matching spectrum, the seafood sample.
3 more elements
A method comprising:
- obtaining, by a device and from a near infrared (NIR) spectrometer, a reflection spectrum of a seafood sample;
- performing, by the device, a multivariate pattern recognition analysis of the reflection spectrum;
- determining, by the device and based on performing the multivariate pattern recognition analysis, a matching spectrum by comparing the reflection spectrum to a library of known freshness ratings spectra corresponding to a freshness of the seafood sample,
- the library of known freshness ratings spectra being generated based on collecting a first plurality of spectra for at least one seafood sample of a plurality of seafood samples and performing an operation on the first plurality of spectra to generate a second plurality of spectra corresponding to the known freshness ratings spectra;
- and
- providing, by the device and based on determining the matching spectrum, a measure of a freshness of the seafood sample.
3 more elements
An apparatus comprising:
- a portable NIR spectrometer to obtain a NIR reflection spectrum of a seafood sample;
- and
- an analyzer to:
- perform a multivariate pattern recognition analysis of the reflection spectrum;
- determine, based on performing the multivariate pattern recognition analysis, a matching spectrum by comparing the reflection spectrum to a library of known identity spectra corresponding to a plurality of seafood samples,
- the library of known identity spectra being generated based on collecting a first plurality of spectra for at least one seafood sample of the plurality of seafood samples and performing an operation on the first plurality of spectra to generate a second plurality of spectra corresponding to the known identity spectra;
- and
- identify, based on determining the matching spectrum, the seafood sample.
5 more elements
Dependencies are inferred from the claim text.