Method for Classification of a Sample on the Basis of Spectral Data, Method for Creating a Database and Method for Using this Database, and Corresponding Computer Program, Data Storage Medium and System

摘要

The invention relates to a method for classification of a sample on the basis of spectral data, a method for creating a database and a method for using this database, and corresponding computer program, data storage medium and system. The method comprises: a) obtaining at least two sets of first spectra for use as reference spectra, each set comprising spectra of reference samples belonging to the same class; b) determining for each of the reference spectra the value of the same at least one quantity related to a spectral feature; c) associating a probability to different values of the quantity on the basis of the determined values; d) obtaining a spectrum from the sample and determining the value of the same at least one quantity of this spectrum; and e) calculating on the basis of the probabilities and the value of the quantity for the obtained spectrum for each of said at least two classes a probability that the sample belongs to that class.

主权项

1. Method for classification of a sample in one of at least two classes on the basis of spectral data, comprising:
obtaining at least two sets of first spectra for use as reference spectra, each set comprising spectra of reference samples belonging to the same class; determining for each of the reference spectra the value of the same at least one quantity related to a spectral feature; associating a probability to different values of the quantity on the basis of the determined values; obtaining a spectrum from the sample and determining the value of the same at least one quantity of this spectrum; and calculating on the basis of the probabilities and the value of the quantity for the obtained spectrum for each of said at least two classes a probability that the sample belongs to that class.