Method, device and system for detecting citrus huanglongbing by low-altitude hyperspectral remote sensing

The invention relates to a method, device and system for detecting citrus huanglongbing by low-altitude hyperspectral remote sensing. The method comprises the steps that a low-altitude hyperspectral remote sensing image of a citrus distribution area to be detected is obtained, wherein the remote sensing image includes distribution information of citrus plants and geographic information of the citrus plants; the hyperspectral remote sensing image is preprocessed; the preprocessed low-altitude hyperspectral remote sensing image is input into a citrus huanglongbing BP neural network model; and distribution results of the citrus huanglongbing in the distribution area are obtained. According to the detecting method, manpower, material resources and workloads of detection can be reduced for thedetection of the citrus huanglongbing in a large area of citrus orchards; rapid detection, accurate location, high efficiency and undamage can be achieved; the detection process is low in cost, easy and effortless; and the re