Multi-source optical remote sensing image water body extraction method based on SegFormer

The invention discloses a SegFormer-based multi-source optical remote sensing image water body extraction method, and belongs to the technical field of surveying and mapping. The method comprises the following steps: S1, carrying out data cleaning on basic geographic information data to obtain a water body sample; s2, performing water body model training on the water body sample in the S1 through SegFormer to obtain a water body extraction model; s3, preprocessing multi-source optical remote sensing image data to be interpreted, and calling the water body extraction model obtained in the S2 to perform water body extraction on the preprocessed multi-source optical remote sensing image data to obtain a preliminary water body result; and S4, performing morphological filtering and opening and closing operation on the initial water body achievement obtained in the S3 to obtain a water body vector pattern spot. The method improves the generalization ability, is suitable for water extraction of different satellite i