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Method for rapidly detecting broken rice rate based on image recognition

A detection method and broken rice rate technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of low classification accuracy, large errors, large randomness, etc., and achieve easy image processing, fast The effect of detecting and improving the accuracy of the results

Pending Publication Date: 2019-01-15
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limitation of this detection method is that the manual screening method is highly subjective, the classification accuracy is not high, the efficiency is low, the randomness is large, and the error is large. In actual production, especially in the process of grain procurement, it is difficult to be effectively and accurately implemented. Therefore, It is easy to cause more problems, and the technical means need to be improved urgently

Method used

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  • Method for rapidly detecting broken rice rate based on image recognition
  • Method for rapidly detecting broken rice rate based on image recognition
  • Method for rapidly detecting broken rice rate based on image recognition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Such as Figure 1-5 Shown, a kind of detection device that is used for the appearance quality detection of rice, comprises display 1, scanner 2 and data processor and arrangement device; Described scanner 2 is connected with display 1, scan result is transmitted to display 1 and displayed on display The scanned image is displayed on 1. The scanner can be selected from models such as Lenovo M7206W all-in-one machine, and the data processor can be selected from Lenovo C560 microcomputer.

[0066] The inside of the cover plate 21 of the scanner 2 is provided with a detachable background plate 22; the background plate 22 is a solid color background plate, and the colors include but not limited to black, brown, purple; the background plate 22 is fixed on the cover plate 21 by a fixing device Inside; the fixing device is provided with at least 2; the fixing device is composed of a suction cup 24 and a draw-in groove 23 fixed on the sucker 24; the groove of the draw-in groove...

Embodiment 3

[0079] The rice sample is measured with the rice appearance quality detection system of Example 1. First place the orifice plate on a glass plate and fit tightly. Weigh a certain amount of rice (0-15g), put it evenly on the orifice plate, and gently shake the orifice plate and the glass plate until the rice particles are dispersed in different holes. After the rice is separated on the glass plate by the perforated plate, the entire array is gently placed on the scanner, the perforated plate is removed, and the scanner cover with the black background is closed. Open the software on the computer to scan the rice sample, after the scan is over, save the scanned rice sample picture in the designated folder; run the rice sample processing program in Example 1, perform operations on the designated picture, record the total number of rice, broken rice The parameter results of rice and small broken rice ( Figure 8 ). Figure 8 The left picture of the figure corresponds to a total ...

Embodiment 4

[0081] The image recognition method distinguishes broken rice and small broken rice by length. Before image processing, it is necessary to debug the detection program to determine the threshold of broken rice and small broken rice. The set threshold is the ratio of the length of broken rice and the length of small broken rice to the complete length of the same batch of rice. Depend on Figure 9 and Figure 10 It can be seen that the number of broken rice particles and the number of small broken rice particles both increase with the increase of the threshold value, that is, the larger the threshold value, the higher the proportion of broken rice length and small broken rice length to complete rice grains. , The greater the number of small broken rice.

[0082] In order to determine the optimal threshold value of the instrument method for the determination of broken rice and small broken rice, the instrument method was used to determine the value of broken rice particles and ...

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Abstract

The invention discloses a method for rapidly detecting broken rice rate based on image recognition and belongs to the technical field of food detection. A rice appearance quality detection device provided by the invention is uniform in size specification of acquired images and relatively high in recognition rate and solves the problems that accuracy rate is low, subjectivity is strong, efficiencyis low, randomness is high and an error is big during manual detection. The method disclosed by the invention obtains an optimal threshold value 0.68 / 0.40 for determining broken rice and small brokenrice after threshold value optimization is performed on a detection system; and broken rice content of rice is determined at the threshold value, and compared with a manual process, an absolute errorof a determination result is less than 0.5%.

Description

technical field [0001] The invention relates to a rapid detection method for broken rice rate based on image recognition, which belongs to the technical field of food detection. Background technique [0002] Rice is one of the most important food crops in various countries in the world, and its quality and safety have a vital impact on a global scale. my country is the world's largest producer and consumer of rice, and the quality and safety of rice is related to the lives and health of Chinese people. With the development of society and the improvement of living standards, people have put forward higher requirements for the quality of rice. [0003] Rice quality indicators mainly include processing accuracy, broken rice, yellow-grained rice, imperfect grains, impurities, color and smell, etc. Among them, broken rice is one of the grading indicators of rice quality indicators. As an important basis for rice grading, it is of great significance to the detection of broken ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00G01N21/84
CPCG01N15/00G01N21/84
Inventor 沈晓芳张玲庞月红杨成罗文涛
Owner JIANGNAN UNIV
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