Navel orange sugar degree detection method based on hyper-spectral imaging technology

A technology of hyperspectral imaging and detection method, which is applied in the detection field of design fruit sugar content, which can solve the problems of high modeling cost, high test cost, operation error, etc., and achieve the effect of simple and convenient operation, fast detection speed and comprehensive information

Inactive Publication Date: 2013-12-25
EAST CHINA JIAOTONG UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The traditional sugar content detection method is to directly measure the fruit juice sampling through a hand-held sugar content meter, which has the disadvantages of time-consuming, low efficiency, destructive, and prone to operational er

Method used

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  • Navel orange sugar degree detection method based on hyper-spectral imaging technology
  • Navel orange sugar degree detection method based on hyper-spectral imaging technology
  • Navel orange sugar degree detection method based on hyper-spectral imaging technology

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and embodiment example, the present invention will be further described

[0029] The experimental materials are navel orange samples purchased from a fruit wholesale market. The dust on the surface is wiped clean and numbered in sequence. Place the navel orange in an experimental environment with a temperature of 20°C and a humidity of 60%, allowing the samples to reach room temperature, and preventing and controlling the disease for at least 24 hours.

[0030] Detection of navel orange sugar content:

[0031] Hyperspectral system and image acquisition: using figure 2 for image acquisition, figure 2 The middle structure includes computer 1, grating spectrometer 2, CCD3, light box 4, light source 5, imaging lens 6, mobile platform 7, sample 8, support frame 9, the upper end of light box 4 is connected with CCD3, CCD3 is connected with grating spectrometer 2, grating The spectrometer 2 is connected to the imaging lens ...

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Abstract

The invention relates to a navel orange sugar degree detection method based on a hyper-spectral imaging technology. The navel orange sugar degree detection method based on the hyper-spectral imaging technology comprises the following steps: collecting spectra of a navel orange through a hyper-spectral imaging system, and performing black-white calibration to eliminate the noise influence; measuring the sugar degree of the navel orange through a digital refractometer; establishing a relationship between the spectra and the sugar degree so as to facilitate subsequent measurement of the sugar degree and nondestructive detection of the sugar degree of the navel orange. Compared with a conventional detection method, the navel orange sugar degree detection method based on the hyper-spectral imaging technology is high in detection speed, easy and convenient to operate and harmless to fruits. Compared with a near infrared spectrum detection method, the navel orange sugar degree detection method based on the hyper-spectral imaging technology has the advantages that more information is obtained and a detection result is more accurate and stable.

Description

technical field [0001] The invention designs a method for detecting the sugar content of fruits, specifically a method for detecting the sugar content of navel oranges based on hyperspectral imaging technology. Background technique [0002] Judgment and detection of fruit quality has always been one of the important topics in the research of agricultural products. With the improvement of people's quality of life, consumers pay great attention to internal qualities such as taste, sugar content, acidity and vitamin content, in addition to external qualities such as size, color, and appearance, when purchasing fruits. The sweetness of fruit is related to its sugar content. As one of the important factors determining the internal quality of fruit, sugar content has always been concerned by people. Therefore, it is an important prerequisite for fruit grading to develop a rapid, real-time, non-invasive method for detecting sugar content in fruits. [0003] The traditional sugar...

Claims

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Application Information

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IPC IPC(8): G01N21/41G01N21/25
Inventor 刘燕德孙祥陈洞滨张光伟杨信庭
Owner EAST CHINA JIAOTONG UNIVERSITY
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