Fusarium graminearum diagnosis method based on hyperspectral imaging

Abstract

The invention discloses a Fusarium graminearum diagnosis method based on hyperspectral imaging. The method comprises the following steps of S1, acquiring a wheat spike hyperspectral image, and performing noise eliminating on the hyperspectral image for obtaining target data; S2, performing first main component analysis on the target data for obtaining a first analysis result, and extracting characteristic data based on the first analysis result; S3, performing second main component analysis on the target data based on the characteristic data for obtaining a second analysis result; and S4, analyzing the grade of the Fusarium graminearum based on the first analysis result and the second analysis result. The Fusarium graminearum diagnosis method realizes Fusarium graminearum detection by means of hyperspectral imaging technology and improves effectiveness and accuracy of a detected wheat area detection result.

Description

technical field [0001] The invention relates to the technical field of hyperspectral imaging analysis, in particular to a method for diagnosing wheat scab based on hyperspectral imaging. Background technique [0002] Wheat head blight is a high-risk disease that threatens wheat production the most, causing serious loss of yield and reduced flour yield. What's more serious is that the toxin produced by the pathogen can endanger the health of humans and animals and cause food safety problems. It is mainly concentrated in the middle and lower reaches of the Yangtze River in my country, the winter wheat area in South China and the spring wheat area in Northeast China. [0003] Hyperspectral imaging technology is an optical image acquisition and analysis technology that integrates advanced technologies such as optics, electronics, optoelectronics, computer science, and information processing. It can simultaneously acquire image information and spectral information of the research...

AI Technical Summary

Problems solved by technology

[0004] At this stage, there are three problems in the diagnosis of wheat scab at home and abroad: 1. Plant protection experts do not have enough time to diagnose and treat all the problems that arise in agricultural activities; 2. There are certain defects in the traditional methods of diagnosis of crop diseases. 3. The traditional hierarchical diagnosis method of scab mainly relies on manual field investigation, which is not only time-consuming and labor-intensive, but also has poor timeliness and accuracy is affected by subjective consciousness

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