A method for detecting the maturity degree of Chinese mitten crab based on multispectral image technology

Abstract

The invention belongs to the technical field of non-destructive testing, and specifically relates to a method for detecting the ripening degree of Chinese mitten crab based on multi-spectral image technology; the specific steps are: collecting full-band spectral information of Chinese mitten crab during the steaming process, and screening and characterizing proteins and the characteristic wavelength of lipid maturity, and the multispectral camera group to construct a multispectral information acquisition system and an online monitoring system for the degree of maturity; collect spectral images of Chinese mitten crabs at characteristic wavelengths during the steaming process, and correct them for further division Region of interest; then extract the spectral image data and color information of the region of interest; the spectral image data and color information extracted in the fusion step 4, set up a discriminant model; the present invention uses spectral images to judge the maturity of Chinese mitten crabs, Using spectral data and image data instead of traditional human eye observation has the advantages of accuracy, high efficiency, non-destructive, and real-time; it solves the defects of strong subjectivity and poor accuracy of manual judgment.

Description

Technical field: [0001] The invention belongs to the technical field of non-destructive detection in the processing of aquatic products, and in particular relates to a method for detecting the ripening degree of Chinese mitten crab based on a multi-spectral 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. However, Chinese mitten crabs generally feed on animal carcasses or humus, and the body surface, gills, and gastrointestinal tract are covered with various bacteria and sludge, especially the cystic paragonimia and Vibrio parahaemolyticus, which invade the human body. Infectious poisoning occurs, showing symptoms such as intestinal inflammation, edema and congestion. During the processing of Chinese mitten crab, high-temperature cooking can kill variou...

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the blank in the monitoring of the degree of ripening in the process of processing Chinese mitten crabs, and to correct the problems and deficiencies of the subjectivity of artificially judging the degree of ripeness and the poor accuracy of constant-time heating during the processing, the present invention adopts multi-spectral image technology to collect steamed crabs. The spectral image of Chinese mitten crab during the steaming process, extracting and screening the characteristic wavelengths, and then integrating the color change information during the heating process of the crab shell, establishes a high-precision discrimination model, and monitors the ripening degree of the Chinese mitten crab during the steaming process, which can meet the requirements of online detection. needs

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