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Plum soluble solid content value detection method based on hyperspectral imaging system

A solid content, hyperspectral imaging technology, applied in the field of hyperspectral imaging technology detection, can solve the problems of redundant hyperspectral data volume, difficult to realize industrialized detection, etc., and achieve the effect of good detection effect and rapid non-destructive detection.

Pending Publication Date: 2019-07-05
GUIYANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the amount of hyperspectral data is redundant, and it is difficult to realize industrial detection

Method used

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  • Plum soluble solid content value detection method based on hyperspectral imaging system
  • Plum soluble solid content value detection method based on hyperspectral imaging system
  • Plum soluble solid content value detection method based on hyperspectral imaging system

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Experimental program
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Embodiment

[0028] In this embodiment, a batch of 60 "red" plums and 60 "green" plums with uniform size and no damage were selected in the local Wal-Mart supermarket, a total of 120 plum samples; all samples were numbered in sequence and placed at room temperature (22+2 ) °C, sampling once every other day, 30 samples each time, using hyperspectral image acquisition system to obtain hyperspectral image of plum samples, hyperspectral image acquisition system such as figure 1 As shown; comprising a dark box 6, the dark box 6 is provided with an electric translation platform 5, the dark box 6 is provided with a camera 1, and the lower end of the camera 1 is connected with an imaging spectrometer 2, and the lower end of the imaging spectrometer 2 is connected with a Lens 3, the lens 3 is facing the electric moving platform 5, both sides of the dark box 6 are provided with a diffuse reflection light source 4, and the diffuse reflection light source 4 obliquely shines on the electric translation ...

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Abstract

The invention relates to the field of hyperspectral imaging technology detection, in particular to a plum soluble solid content value detection method based on a hyperspectral imaging system. The plumsoluble solid content value detection method comprises the steps of: collecting fresh plum samples of different varieties, using a hyperspectral image acquisition system to acquire hyperspectral image of all the samples, and extracting an average reflection spectrum of the whole fruit region; measuring soluble solid content values of all the plum samples by using an ATAGO PAL-alpha digital handheld pocket refractometer; utilizing an SPXY algorithm to classify all the plum samples according to a ratio of 3:1 of a correction set sample number to a prediction set sample number, and applying a competitive adaptive reweighted sampling algorithm to select feature wavelengths; and establishing a prediction model of plum soluble solid content values by combining a spectral preprocessing method and chemometrics. The plum soluble solid content value detection method can detect the plum soluble solid content values based on the hyperspectral imaging technology quickly and non-destructively.

Description

technical field [0001] The invention relates to the detection field of hyperspectral imaging technology, in particular to a detection method for plum soluble solids content based on a hyperspectral imaging system. Background technique [0002] Plum pulp is rich in nutrients, and regular consumption can play a very good role in beautifying and lubricating the skin, and is deeply favored by consumers. Soluble solids content is one of the important indicators to evaluate fruit maturity. Since plum is a typical climacteric fruit, the flesh after harvest is easy to ripen and soften, making it difficult to store. Usually immature plums are picked to prolong their storage period; but if picked too early, the plums will be too hard and affect the taste; if picked too late, the plums will be too soft, easy to rot and difficult to store. Therefore, determining the appropriate picking maturity is a key factor to extend the storage period and ensure its quality. At present, the determ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/27G01N21/41
CPCG01N21/27G01N21/4133
Inventor 孟庆龙张艳尚静
Owner GUIYANG UNIV
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