Method for identifying wine commodity from outside of light-transmitting packaging bottle

The invention discloses a method for identifying wine commodities from the outside of a light-transmitting packaging bottle, and belongs to the technical field of wine commodity identification. The invention aims to solve the problem that the difference of Raman spectrums of different wine commodities is fine, so that wine identification is difficult to carry out by a method for identifying the difference between the spectrums. The method comprises the following steps: determining an SVM classification detection model by adopting dimension-reduced spectral data; collecting the Raman scattering spectrum of the wine commodity from the outside of the light-transmitting packaging bottle by adopting a Raman spectrum detector; carrying out dimension reduction processing on the Raman scattering spectrum by using a principal component analysis method to obtain a dimension-reduced spectrum to be identified; inputting the to-be-identified spectrum after dimension reduction into an SVM classification detection model to