Fruit quality damage-free detection method and system based on multiple spectral imaging technique

Abstract

The invention discloses a fruit quality non-damage detect method and a relative system, based on multi-spectrum image technique, wherein a parameter-adjustable light source emits light beam on a fruit platform, a visible and near-infrared multi-spectrum image device is connected with an infrared multi-spectrum image device respectively via a RS-232 serial port line and an image pickup card data line, and a computer is arranged with an image analysis processing software. The invention uses visible and near infrared multi-spectrum imaging technique to quickly and accurately pickup the visible and near infrared multi-spectrum image information of fruit surface, to analyze the defects and cuts on the detected fruit, to realize non-damage quick fruit quality detect system.

Description

technical field [0001] The invention relates to a method for analyzing materials by using optical means, in particular to a method and system for nondestructive detection of fruit quality based on multi-spectral imaging technology. Background technique [0002] my country is a big fruit producing country in the world, with a long history of fruit cultivation and rich variety information. Since 1993, my country's total fruit output has surpassed India, Brazil and the United States, ranking first in the world. my country's apples and pears account for 22.8% and 36% of the world's total output respectively, ranking first in the world; citrus accounts for 10% of the world's total output, second only to Brazil and the United States, ranking third in the world. However, my country's fruit storage capacity is only 10%, the rotten fruit rate is as high as 25%, the high-quality fruit is less than 30%, and the high-grade fruit is less than 5%. Although China's apple production ranks...

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Problems solved by technology

However, my country's fruit storage capacity is only 10%, the rotten fruit rate is as high as 25%, the high-quality fruit is less than 30%, and the high-grade fruit is less than 5%.

[0003] At present, in China, the means of fruit quality inspection are relatively backward, and most of them stay at the primitive stage of identification and judgment by artificial senses. This subjective evaluation method is affected by conditions such as personal experience, color resolution, emotion, fatigue, and light. , in the process of operation, the labor load is large, the production efficiency is low, and the error is large, and most of them stay on qualitative judgments, which are poor in objectivity and accuracy, which largely leads to the poor external quality of my country's export fruits , good and bad are intermingled, lack of competitiveness in the international market, which makes it urgent to improve the quality inspection level of fruit in our country

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