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Apple rigidity nondestructive testing method based on hyperspectral space scattering curve

A non-destructive testing and hyperspectral technology, applied in the measurement of scattering characteristics, etc., can solve the problem of not being able to provide spatial information of fruits

Inactive Publication Date: 2010-04-21
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the spatial limitation of near-infrared technology, only part of the point information can be detected, and the spatial information of the fruit cannot be provided.

Method used

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  • Apple rigidity nondestructive testing method based on hyperspectral space scattering curve
  • Apple rigidity nondestructive testing method based on hyperspectral space scattering curve
  • Apple rigidity nondestructive testing method based on hyperspectral space scattering curve

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] Such as figure 1 As shown, the method according to the embodiment of the present invention includes the following steps:

[0030] S1. Selection of apple sample materials

[0031] You can buy 40 'Yantai Red Fuji' apples in the market, and visually select samples with similar shapes and sizes and no obvious surface scars when purchasing. The purchased apples were stored in a 3°C environment, and an experiment was done every three days, with 20 apples per day. The apples were taken out the night before each experiment and placed in a room temperature environment for 12 hours to allow the experiment to be done after reaching room temperature. The apples needed to be sim...

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Abstract

The invention discloses an apple rigidity nondestructive testing method based on hyperspectral space scattering curves, comprising the following steps: selecting samples; acquiring hyperspectral data; measuring a standard rigidity value; processing the hyperspectral data; and establishing and evaluating a rigidity prediction model. The invention acquires the hyperspectral space scattering curves carrying with apple internal tissue (directly related with the rigidity of apples) information to obtain the fitting parameters of the hyperspectral space scattering curves and establishes the rigidity prediction model by utilizing the fitting parameters, thereby realizing the testing of the rigidity of the apples by using the rigidity prediction model.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing of agricultural products, in particular to a fast non-destructive testing method for apple hardness based on hyperspectral space scattering curves. Background technique [0002] Firmness is an important indicator of the internal properties of the fruit, which can vary widely depending on factors such as climatic conditions, harvest time or maturity, as well as post-harvest handling and actual storage. Especially for apples, the hardness index is an important index of its internal properties, and the research on its detection methods has attracted more and more attention. my country is extremely rich in apple varieties. According to statistics, among the approximately 1,000 varieties in the world, my country accounts for 800 varieties. Although my country's apple output is high at present, the export rate of my country's apples is still very low due to the backwardness of detection...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/49
Inventor 彭彦昆单佳佳吴建虎陈菁菁陶斐斐黄慧
Owner CHINA AGRI UNIV