Method and system for acquiring disease severity of leaf under open field environment

A disease degree and blade technology, applied in the field of agricultural engineering, can solve problems such as the inability to calculate the degree of disease damage, and achieve the effects of facilitating docking and technology integration, reducing costs, and avoiding mis-segmentation
CN103778628AActive Publication Date: 2014-05-07BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING RES CENT FOR INFORMATION TECH & AGRI
Publication Date
2014-05-07

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Abstract

The invention relates to agricultural engineering and particularly relates to a method and a system for acquiring the disease severity of a leaf under an open field environment. The method comprises the following steps: taking a picture of a leaf against a black flat plate; extracting edge features in a gray image of the picture to divide the image into a plurality of regions; finding out leaf regions and diseased spot regions from the regions according to color features in a color image of the picture; and judging the disease severity of the leaf according to the number of the diseased spot regions and the area ratio of the diseased spot regions to the leaf regions. The disease severity of a leaf can be accurately calculated under an open field environment.
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Description

technical field

[0001] The invention relates to agricultural engineering, in particular to a method and system for acquiring leaf disease degrees in an open field environment. Background technique

[0002] With the application and development of machine vision technology, it is possible to use image processing technology to process, segment, and calculate crop disease images, thereby realizing automatic calculation of disease damage. Therefore, machine vision technology is an important automatic calculation of disease damage. The method has attracted people's attention day by day and has been widely used in the field of plant protection.

[0003] The number of diseased spots and the proportion of diseased spots on crops are an important basis for disease damage and control decisions, and are also key information for precise spraying. Compared with manual methods, the use of machine vision to automatically obtain the number of lesions and the proportion of lesion areas can n...

Claims

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