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Nut opening size detection method based on machine vision

A dimensional detection and machine vision technology, applied in instruments, measuring devices, image enhancement, etc., can solve problems such as inconvenience of manual detection, achieve accurate and efficient measurement, reduce screening burden, and have broad application potential.

Active Publication Date: 2022-05-31
马鞍山学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the inconvenience of using manual detection for nut opening detection in the prior art, and to provide a machine vision-based nut opening size detection method, which uses an image processing method to collect and preprocess the nut opening image, and then uses the edge The detection algorithm obtains the radius of the entire nut outline, uses the straight line detection algorithm to obtain the opening size information, calculates the entire nut surface area occupied by the opening, and realizes accurate and efficient measurement of the nut opening size

Method used

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  • Nut opening size detection method based on machine vision
  • Nut opening size detection method based on machine vision
  • Nut opening size detection method based on machine vision

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Experimental program
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Effect test

Embodiment 1

[0062] S

[0071] In this embodiment, the detection unit also includes a computer 101 and a control panel 102 that are arranged on the base 100.

[0072] As shown in FIG. 4, the power drive assembly in the sorting unit in this embodiment includes a moving wheel 204, and the moving wheel

[0073] In this embodiment, the surface of the moving wheel 204 is symmetrically provided with a matching groove 205 extending along its length direction.

Embodiment 2

[0077] In this embodiment, the height position of the CCD camera 106 can be effectively adjusted by setting the camera adjustment assembly, which is convenient to ensure

Embodiment 3

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Abstract

The invention discloses a method for detecting the opening size of nuts based on machine vision, and belongs to the field of food size measurement. The present invention includes the following steps: S1, image acquisition; S2, image preprocessing, obtaining a binarized image containing only target feature information; S3: target contour extraction: using an edge detection algorithm to extract all open shell fruit image contours; S4: Line detection: use the projection detection algorithm to search for the opening target edge points of all open shells; S5: image analysis: calculate the surface area and opening area of ​​the open shell; S6: result analysis: judge whether the open shell meets the opening requirements. The invention overcomes the inconvenience of using manual detection for nut opening detection in the prior art, uses an image processing method to collect and preprocess the nut opening image, uses a straight line detection algorithm to obtain opening size information, and realizes accurate and efficient measurement of the nut opening size .

Description

Detection method of nut opening size based on machine vision technical field The present invention relates to the technical field of food size measurement, more particularly, to nut opening based on machine vision Size detection method. Background technique Macadamia nut (Macadamia nut), belongs to nut class, originates in Australia, introduces places such as China Yunnan, Sichuan, Guizhou subsequently And vigorously promote planting. Macadamia nuts are rich in calcium, phosphorus, iron, vitamin B1, amino acids, etc. It has the reputation of "Queen of Dried Fruits" and "King of Nuts in the World". In recent years, as people's pursuit of a healthy life has become more and more The production and sales of macadamia nuts are increasing, and the application prospects of macadamia-related industries are becoming more and more broad. There is an indispensable operation in the Hawaiian open shell fruit processing technological process—opening, the purpose one of opening...

Claims

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Application Information

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IPC IPC(8): G01B11/24G01B11/02G01B11/28G06T5/00G06T7/136
CPCG01B11/24G01B11/022G01B11/028G01B11/285G06T7/136G06T2207/10004G06T2207/20032G06T5/70
Inventor 郭家伟孙洒韩飞坡史淑芬王静静汪海燕
Owner 马鞍山学院
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