Gray mold early diagnosing system based on visable/near infrared multispectral imaging

A multi-spectral imaging and near-infrared technology, which is applied in the direction of material analysis, measuring devices, and instruments through optical means, can solve problems such as environmental pollution, insufficient precision, and inability to operate in real time, and achieve reduced production costs and non-destructive Diagnosis, effect of reducing drug dosage

Inactive Publication Date: 2007-06-06
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

Diseases can not only lead to a decline in the yield and quality of economic plants, but also cause a large amount of investment in pesticides and other drugs and increase in control costs, thereby increasing the cost of agricultural and forestry production and causing serious environmental pollution.
Existing disease detection methods have the shortcomings of requiring a lot of manpower and material resources in sampling, measurement, and data analysis in actual agricultural and forestry production, and have poor real-time performance, which cannot meet the needs of specific production practices.
There are interferences of subjective factors such as fatigue and emotion in naked eye observation; detection methods based on molecular level, such as bioassay technology, nucleic acid sequence analysis technology, molecular marker technology, PCR technology, etc., although relatively accurate, cannot be operated in real time and require professional Personnel operation is time-consuming and costly; the statistical prediction based on past disease occurrence data is not high enough in accuracy, lacks effectiveness, and is only suitable for rough estimation in a large geographical range, so it is difficult to predict or single plant

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  • Gray mold early diagnosing system based on visable/near infrared multispectral imaging
  • Gray mold early diagnosing system based on visable/near infrared multispectral imaging

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Embodiment Construction

[0022] As shown in Figure 1, a system for early diagnosis of Botrytis cinerea disease on plant leaves and canopies based on visible / near-infrared multispectral imaging includes a visible / near-infrared multispectral imager, an imager fixture, an image acquisition card, a computer, Reflectivity dynamic calibration plate and light source, visible / near-infrared multi-spectral imager, respectively, near-infrared multi-spectral imager is connected to computer through RS-232 serial port line and image acquisition card data line, and image analysis and processing software is installed on the computer;

[0023] The visible / near-infrared multispectral imager collects the canopy images of the measured plants and the reflectivity dynamic calibration plate images in real time through three Charge Coupled Device (CCD) sensors. RS-232 serial port is used for image acquisition control. The images include monochrome images of three band channels of green light band (550nm±40nm), red light band...

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Abstract

This invention disclosed an early diagnosis system for gray mold disease in plant. It consists of multi spectral imaging instrument, fixing device, image collecting card, computer, reflectivity demarcating board and light source. The multi spectral imaging instrument connects to the computer by RS-232 line and card data wire. There are data analysis software on the computer. Gray mold disease could be detected precisely, efficiently, real-time and non-destructively. It is also environmentally friendly and cost save.

Description

technical field [0001] The invention relates to an early diagnosis system of gray mold disease of plant leaves and canopy, in particular to an early diagnosis system of gray mold disease of plant leaves and canopy based on visible / near-infrared multi-spectral imaging. Background technique [0002] Plant gray mold is very harmful to plant growth. Diseases can not only lead to a decline in the yield and quality of economic plants, but also cause a large amount of investment in pesticides and other drugs and increase the cost of control, thereby increasing the cost of agricultural and forestry production and causing serious environmental pollution. Existing disease detection methods have the shortcomings of requiring a lot of manpower and material resources in sampling, measurement, and data analysis in actual agricultural and forestry production, and have poor real-time performance, which cannot meet the needs of specific production practices. There are interferences of subje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17G01N21/84
Inventor 何勇吴迪冯雷
Owner ZHEJIANG UNIV
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