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Method and device for determining sugar content 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: 2017-09-05
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 content of fruit
  • Method and device for determining sugar content of fruit
  • Method and device for determining sugar content of fruit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Citrus with different sugar content has different absorption and reflection of electromagnetic waves in different bands during the growth process, resulting in different appearance and coloring, forming different colors on the surface of the fruit. Therefore, the sugar content of citrus can be detected through color images and perform non-destructive grading.

[0037] Such as figure 1 As shown, the present embodiment provides a method for determining the sugar content of fruit, comprising the steps of:

[0038] Step 11, obtain the color image of the fruit by the camera.

[0039] Step 12, obtain sugar content parameter from the color image of fruit;

[0040] Step 13. Determine the sugar content of the fruit by using the sugar content model 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, the foreground image is firstly segmented from the background of the color image, and t...

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 obtain the color image of the fruit; the image acquisition device can be a camera and any equipment with a camera; the calculation unit is used to obtain the sugar content parameter from the color image of the fruit; the determination unit is used to obtain the sugar content parameter according to the sugar content Parameters and Weights Use the Brix Model to determine fruit Brix.

[0093] For the working principle of each unit in this embodiment, refer to the description of Embodiment 1.

[0094]According to the present invention, the sugar content of fruit can be measured by ordinary cameras and computers. Therefore, the present invention does not need to add additional equipment to estimate the sugar content of fruit. The technology of the present invention is extremely suitable for fruit grading work in 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 technology for determining fruit quality, in particular to a method and device for determining the sugar content of fruit. Background technique [0002] The prices of fruits of different qualities vary greatly, and fruit quality grading 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 the external form, it is possible for people to infer the internal information of the fruit through the external form. With the simplification and cheapness of digital image acquisition, the image-based fruit quality research is objectively promoted, and it is hoped to realize the automation of fruit quality detection. In this kind of research on fruit quality, because citrus has a wide distribution range and large yield, it has become a hot spot of concern. The following...

Claims

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Application Information

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