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A method for rapid detection of yellow-grained rice

A detection method and technology of yellow grains, applied in the direction of color/spectral characteristic measurement, image analysis, image enhancement, etc., can solve the problems of strong subjectivity, slow speed, low accuracy, etc. high rate effect

Active Publication Date: 2021-03-30
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test results largely depend on the operator's knowledge of yellow-grained rice and their work experience. The test process has disadvantages such as slow speed, strong subjectivity, and low accuracy.

Method used

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  • A method for rapid detection of yellow-grained rice
  • A method for rapid detection of yellow-grained rice
  • A method for rapid detection of yellow-grained rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 detects the method for yellow-grained rice rapidly

[0042] The detection system adopts the detection device of the rice appearance detection disclosed by the publication number CN109211740A. The setup includes a computer, scanner, well plate, glass plate, background plate, etc. The computer is a Lenovo C560 microcomputer, the scanner is a flatbed scanner, the optical element is CIS, and the optical resolution is 600×600dpi. The orifice plate is a custom-made orifice plate with a large upper hole and a smaller lower hole to avoid the situation where two grains of rice stand vertically in one hole. The raw material is aluminum plate, which has the advantages of lightness, good plasticity, and corrosion resistance. The glass plate is high transparency. , low reflection, performance close to optical float glass, and make it fit closely with the orifice plate. The background board is black cardboard, which is pasted inside the upper cover of the scanner when ...

Embodiment 2

[0056] Embodiment 2 manual screening method detects the quantity of yellow-grained rice

[0057] According to GB / T 5496 "Inspection Method for Yellow Grain Rice and Crack Grain of Grain and Oil Seeds", weigh a certain amount of rice sample 0~50g, count the total number of rice samples; and pick out the rice grain with yellow endosperm as yellow grain meters, weighed and counted.

Embodiment 3

[0058] Example 3 Yellow-grained rice detection under different image background colors

[0059] The equipment is the same as in Example 1, and the scanner is used to obtain the image. Since the upper cover plate of the scanner is white, the background of the collected rice image is white, and the color of the rice itself is white, and the color of yellow-grained rice is yellow. In order to determine the image background The influence of color on the identification and counting of yellow-grained rice and total rice grains, 10 groups of samples were selected, and the images were obtained under white background and black background respectively, among which the gradient of rice grain number in 10 groups of samples was 50, 100, 150...500 The number of yellow-grained rice mixed in each group is 5, 10, 15 ... 50, the image analysis, identification and counting method is the same as that shown in Example 1, and the results are shown in Table 1. The yellow-grained rice and The recogni...

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Abstract

The invention discloses a method for rapidly detecting yellow-colored rice, and belongs to the technical field of food detection. A detection device for rice appearance detection is used in the method, a self-designed yellow-colored rice detection method is combined, average detection time of rice images is 10 s, and image recognition and positioning are rapid. Compared with a manual detection result, an absolute error is not more than 0.01%. The method is accurate in yellow-colored rice identification, has the advantages of high speed, high accuracy, strong objectivity and the like, accords with domestic standards and specifications, and is suitable for popularization.

Description

technical field [0001] The invention relates to a method for quickly detecting yellow-grained rice, which belongs to the technical field of food detection. Background technique [0002] Rice is the daily staple food in our country, and its output and consumption are huge. With the progress of society and the continuous improvement of living standards, people have higher demands on the quality of rice. Yellow-grain rice is the judgment in the national rice testing standards. One of the important indicators of rice quality. As defined in GB / T 1354-2018 "Rice", yellow-grained rice refers to rice grains whose endosperm is yellow, which is obviously different from normal rice grains, and has the same color as the standard sample of rice color yellowness index or deeper. Rice quality indicators require that the content of yellow-grained rice not exceed 1%, and the quality of high-quality rice requires that the content of yellow-grained rice not exceed 0.5%. [0003] Yellow-grain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/187G06T7/90G01N21/25
CPCG01N21/25G06T7/0004G06T2207/30128G06T7/136G06T7/187G06T7/90
Inventor 沈晓芳张玲庞月红杨成
Owner JIANGNAN UNIV
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