Dike slope protection vegetation abnormal growth disease identification method and system

The invention provides a dike slope protection vegetation abnormal growth disease identification method and system, and belongs to the technical field of dike disease detection. According to the dam bank slope point cloud data, a vegetation area on the dam bank slope is extracted; moving step-by-step slicing is carried out on the point cloud data of the vegetation area, traversal comparison is carried out on the point cloud density difference of adjacent slices and a preset point cloud density difference threshold value until the point cloud density difference of the adjacent slices is not smaller than the preset point cloud density difference threshold value, and the moving step number is obtained; according to the moving step number, a boundary of the vegetation anomaly region is determined; and position calibration is carried out according to the vegetation anomaly region boundary, and vegetation anomaly region position information is determined to serve as a dam bank slope disease region. The slope vegeta