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Method and device for determining sugar degree of fruit

A determination method and technology of sugar content, applied in the field of determination of fruit quality, can solve problems such as satisfactory taste

Active Publication Date: 2015-04-29
RES INST OF FOREST RESOURCE INFORMATION TECHN CHINESE ACADEMY OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the degree of sweetness varies from person to person, citrus with little sugar content usually does not satisfy most people.

Method used

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  • Method and device for determining sugar degree of fruit
  • Method and device for determining sugar degree of fruit
  • Method and device for determining sugar degree of fruit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Citrus with different sugar content has differences in the absorption and reflection of electromagnetic waves of different wavelengths during the growth process, which makes its appearance and coloring different. Different colors are formed on the surface of the fruit. Therefore, the sugar content of citrus can be detected through color images. And carry out non-destructive classification.

[0037] Such as figure 1 As shown, this embodiment provides a method for determining the sugar content of fruit, which includes the following steps:

[0038] Step 11. Obtain a color image of the fruit through a camera.

[0039] Step 12. Obtain the sugar content parameter from the color image of the fruit;

[0040] Step 13. Use the sugar content model to determine the fruit sugar content according to the sugar content parameters

[0041] In step 12, in order to obtain the sugar content parameter from the color image of the fruit, first segment the foreground image from the background of the co...

Embodiment 2

[0091] This embodiment provides a device for determining the sugar content of fruit, which includes:

[0092] The image acquisition device is used to acquire color images of fruits; the image acquisition device can be a camera or any device with photographs; the calculation unit is used to obtain the sugar content parameters from the color images of the fruit; the determination unit is used to determine the sugar content The parameters and weight use the sugar content model to determine the fruit sugar content.

[0093] For the working principle of each unit in this embodiment, please refer to the description of the first embodiment.

[0094] According to the present invention, the sugar content of fruits can be measured by ordinary cameras and computers. Therefore, the present invention can estimate the sugar content of fruits without adding additional equipment. The technology of the present invention is extremely suitable for fruit grading work of small enterprises.

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Abstract

The embodiment of the invention provides a method and device for determining the sugar degree of a fruit, through which the sugar degree of the fruit can be rapidly estimated by a nondestructive method. The method comprises the following steps: acquiring a color image of the fruit; acquiring a sugar degree parameter from the color image of the fruit; according to the sugar degree parameter, determining the sugar degree of the fruit by using a sugar degree model, wherein the sugar degree parameter comprises a green component mean x1, a color mean x2, a red and green color component mean x3 and a percentage x4 of fruit foreground image in the whole image. The device comprises an image acquisition device, a calculating unit and a determining unit, wherein the image acquisition device is used for acquiring the color image of the fruit; the calculating unit is used for acquiring the sugar degree parameter from the color image of the fruit; the determining unit is used for determining the sugar degree of the fruit by using the sugar degree model according to the sugar degree parameter. According to the method and the device, the sugar degree of the fruit can be measured through an ordinary camera and a computer, so that the sugar degree of the fruit can be estimated without additional arrangement; therefore, the method and the device are very suitable for fruit grading in small enterprises.

Description

Technical field [0001] The invention relates to a fruit quality determination technology, in particular to a method and a device for determining fruit sugar content. Background technique [0002] The price of different quality fruits varies greatly, and fruit quality classification has always been valued by fruit farmers and merchants. Different from the sampling inspection of the quality of many items, fruit grading requires that each fruit be graded. Since the quality of fruit is often manifested in its external form, this makes it possible for people to infer internal information through the external form of the fruit. With the simplification and cheapness of digital image collection, the image-based fruit quality research has objectively promoted, and it is hoped to realize the automation of fruit quality detection. In this type of research on fruit quality, because of the wide distribution of citrus and the large yield, people are paying attention to it. The following take...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG01N21/84
Inventor 王雪峰
Owner RES INST OF FOREST RESOURCE INFORMATION TECHN CHINESE ACADEMY OF FORESTRY