Mangrove forest ecological information intelligent extraction method based on unmanned aerial vehicle

The invention discloses a mangrove forest ecological information intelligent extraction method based on an unmanned aerial vehicle, and the method comprises the steps: collecting visible light remote sensing data through the unmanned aerial vehicle, carrying out the preprocessing of the data, recognizing mangrove species through a pixel-level type recognition algorithm, and calculating the mangrove forest area and species diversity; then, generating a DSM result through three-dimensional reconstruction, and calculating ecological indexes of the mangrove plant canopy diameter and the height of the mangrove plant in combination with a mangrove plant type identification result. According to the method, mangrove forest ecological information monitoring is carried out by means of the unmanned aerial vehicle, operation is convenient, the real-time performance is high, and precision is high; meanwhile, mangrove forest ecological information is obtained according to unmanned aerial vehicle remote sensing data, the he