A pine wilt disease tree identification and positioning method and system

Abstract

The invention provides a pine wilt disease tree identification and positioning method and system, and the method comprises the steps of obtaining the suspected disease source points of pine wood nematode according to a visible light image of a to-be-identified region; obtaining a visible light stereo image corresponding to the suspected disease source point, and obtaining a confidence coefficientof the suspected disease source point according to the visible light stereo image; judging whether the suspected disease source point is a disease source point or not by combining the visible light time sequence image, the multispectral image or the transpiration rate image corresponding to the suspected disease source point according to the confidence coefficient of the suspected disease source point; if it is judged that the suspected disease source point is a disease source point, obtaining the position information of a disease tree where the disease source point is located, and generatinga first remote sensing image with the position information of all the disease source points and corresponding pine wood nematode disease information in a to-be-identified area; and sending the first remote sensing image to an auditor for manual audit. According to the method, multiple images are utilized in the process of confirming the disease source points, the suspected disease source points are verified for multiple times, the recognition rate of the disease source points is high, and the positioning precision is high.

Description

technical field

[0001] The embodiments of the present invention relate to the technical field of disease and insect pest control, and more specifically, relate to a method and system for identifying and locating pine wood nematode diseased trees. Background technique

[0002] Pine wood nematode disease, also known as pine wilt disease, is a devastating disease caused by pine wood nematodes parasitizing in the body of pinus species to feed on nutrients and cause rapid death of trees. This disease can cause pine trees to die within 60-90 days after infection. It dies, spreads rapidly, and causes large-scale deforestation in 3-5 years. It is extremely difficult to prevent and control. It is an important international quarantine object and listed as the first forest pest. It is called "smoke-free forest disaster". The monitoring of pine wood nematode disease is a key means for the prevention and control of pine wood nematode. The traditional monitoring of pine wood nematode dise...

Images