Method for identifying quality of Chinese mitten crabs based on hyperspectral image technology

Abstract

The invention discloses a method for identifying the quality of Chinese mitten crabs based on a hyperspectral image technology. The method comprises: 1, acquiring a Chinese mitten crab sample comprising a plurality of female Chinese mitten crabs and a plurality of male Chinese mitten crabs, 2, identifying the quality of the Chinese mitten crabs according to the Chinese mitten crab sensory indexesof the agricultural standard NY-5064-2001, 3, acquiring and correcting hyperspectral images, 4, acquiring spectral information of the region of interest, 5, extracting abdominal spectral feature variables and back image feature variables, carrying out PCA analysis on the obtained crab shell hyperspectral images and abdominal surface spectral information to obtain first 3 principal components suchas back image texture feature information and abdominal spectrum information capable of characterizing the original information of the sample and 6, constructing an identification model which is a LS-SVM model and identifying the quality of Chinese mitten crabs through the identification model. The method overcomes the shortcomings of slow manual identification and subjective influence, and improves the intelligent detection level of Chinese mitten crabs.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing of aquatic products, and in particular relates to a rapid non-destructive testing method for the quality of Chinese mitten crabs based on hyperspectral image technology. Background technique [0002] Chinese mitten crab is an important and valuable aquatic product in my country. It is not only delicious, but also rich in protein, vitamins, calcium, phosphorus, iron and other trace elements, and has high nutritional value. With the continuous improvement of people's quality of life, the demand for Chinese mitten crab is also increasing year by year. As a leader in the aquatic industry, the annual output has reached tens of thousands of tons. In order to meet the growing demand of the market, the aquaculture output of Chinese mitten crabs is also increasing year by year; more than 90% of Chinese mitten crabs in the market are sold in the form of fresh raw materials, and the price has...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problems and deficiencies of manually grading Chinese mitten crabs, the present invention uses a hyperspectral imaging system to realize accurate prediction of the quality of Chinese mitten crabs, and combines chemometric algorithms to establish a mathematical model to realize fast and accurate quality evaluation of Chinese mitten crabs. ground detection

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