Single corn seed moisture content detection method based on near infrared hyperspectrum

A near-infrared hyperspectral and detection method technology, which is applied in the field of single corn seed moisture content detection, can solve the problem that there is no single-seed moisture near-infrared hyperspectral detection method or standard, so as to reduce data redundancy and improve The effect of signal-to-noise ratio and increasing the gradient range

Active Publication Date: 2021-06-29
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY +1
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Problems solved by technology

In 2010, my country issued the national standard GB/T24900-2010 [12] for the determination of corn moisture content by near-infrared method for the determination of corn seed batch moisture, which shows that near-infrared s

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  • Single corn seed moisture content detection method based on near infrared hyperspectrum
  • Single corn seed moisture content detection method based on near infrared hyperspectrum
  • Single corn seed moisture content detection method based on near infrared hyperspectrum

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with drawings and embodiments.

[0046] Such as figure 1 A kind of method for detecting moisture content of single corn seeds based on near-infrared hyperspectral shown, is characterized in that, concrete steps are as follows:

[0047] 1) Data collection: Collect corn seed samples with different moisture content in the same batch, remove moth-eaten hole particles, moldy particles, and damaged particles to obtain N corn seed samples, and perform moisture measurement on N corn seed samples to obtain moisture content data the y i , using hyperspectral imaging system to collect hyperspectral image data of corn seed samples x i , the specific steps are:

[0048] 1-1) Collect corn seed samples with different moisture contents in the same batch, and perform preliminary screening on the seeds to remove moth-eaten hole particles, moldy particles, and damaged particles to obtain N corn seed samples;

[0049]...

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Abstract

The invention provides a single corn seed moisture content detection method based on near infrared hyperspectrum, which comprises the following steps: 1) collecting N corn seed samples with different moisture contents in the same batch, and measuring moisture content data yi and hyperspectral image data xi of the samples; 2) preprocessing the hyperspectral image data xi to obtain preprocessed spectral image data x'i; 3) extracting a characteristic spectrum of the preprocessed spectral image data x'i and texture features of the hyperspectral image data xi, and splicing the extracted characteristic spectrum and texture features to obtain a spectral image fusion matrix Pi; 4) dividing the sample set into a training set and a test set, and constructing a moisture prediction model by using a random forest algorithm; and 5) predicting a to-be-detected sample: performing adaptive weighted prediction on the moisture content of the to-be-detected sample according to the random forest model. The near-infrared hyperspectral technology is utilized, spectrum and image data are fused, a single corn seed moisture content detection model is constructed, and the method has important significance on application of the corn precision sowing technology.

Description

technical field [0001] The invention relates to the field of moisture detection of corn seeds, in particular to a method for detecting moisture content of single corn seeds based on near-infrared hyperspectral. Background technique [0002] Corn is currently the crop with the most extensive planting area and the highest yield in my country. It is not only the "king of feed", but also an important industrial raw material. In recent years, with the introduction of "single seed sowing" corn seeds by the American Pioneer Company and the introduction of the mechanized single seed precision sowing technology of corn in developed countries such as Europe and the United States, the traditional corn sowing mode in my country has undergone profound changes. Compared with the traditional sowing mode, the single-seed precision sowing technology is more conducive to mechanized operation, labor-saving, seed-saving, and high-yield, but it puts forward higher detection requirements for each...

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Application Information

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IPC IPC(8): G01N21/359G06F17/16G06F30/20
CPCG01N21/359G06F17/16G06F30/20
Inventor 吴静珠张乐李江波刘翠玲于重重余乐孙晓荣
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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