Method for detecting crop disease by using computer vision technology

A technology of computer vision and crops, applied in the field of computer vision, can solve problems such as difficult detection of leaf diseases, and achieve a reasonable design effect

Pending Publication Date: 2020-01-21
TIANJIN UNIV
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the complex external environment brings great difficulties to the detection of leaf diseases. If the diseased area can be detected and then targeted for identification, a better identification effect can be achieved.

Method used

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Embodiment Construction

[0040] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0041] The design idea of ​​the present invention is: use the target detection neural network to extract the features of crop images in outdoor complex environments; use the region proposal network (region proposal network, RPN) to generate candidate frames according to the extracted image features, and analyze each candidate frame Based on the detailed image features in the candidate frame, it is judged whether the image in the candidate frame is a background or a disease, and the target candidate frame with the highest probability is retained; the image features and the target candidate frame are jointly input into the region of interest subnetwork, and the size and position of the target candidate frame are corrected. And according to the image features in the target frame, the type of crop disease is judged, and the function of crop disease ...

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Abstract

The invention relates to a method for detecting crop diseases by using a computer vision technology, which comprises the following steps: constructing a data set of crop disease images, and dividing the data set into a training set and a test set; constructing a convolutional neural network model for extracting disease image features; constructing a detection model of the diseased leaves; traininga neural network model; evaluating the network performance: testing the detection performance of the network by using the test set, and if an expected result is not reached, continuing to train untila trained network model is obtained; crop disease detection: shooting images of crop leaves by using a camera, inputting the images into the trained network model, and obtaining plant disease categories and position coordinates of disease parts on the leaves at an output end. The method is reasonable in design, lays a foundation for improving crop disease early warning, not only realizes detection and positioning of crop disease parts in a real environment, but also realizes accurate identification of disease types, and is suitable for prevention, control and early warning of crop diseases.

Description

technical field [0001] The invention belongs to the technical field of computer vision, in particular to a method for detecting crop diseases by using computer vision technology. Background technique [0002] Crop disease is one of the main agricultural disasters in my country. It has the characteristics of various types, great impact and frequent outbreaks. It not only causes losses to crop production, but also poses a threat to food safety. Therefore, the diagnosis and identification of crop diseases play an important role in ensuring crop yield and preventing food safety. At the same time, realizing accurate detection of crop diseases and the determination of the degree of disease is the key to the prevention and control of crop diseases. However, identification of diseases requires many professionals to carry out identification analysis and draw conclusions, but most planters have less professional knowledge and experience, which will delay the early prevention and treat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06K9/00G06K9/62G06N3/04
CPCG06T7/0002G06V20/10G06N3/045G06F18/214
Inventor 史再峰王荣曹清洁罗韬
Owner TIANJIN UNIV
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