Terrain image slicing method based on pyramid structure and hierarchical detail model

The invention discloses a terrain image slicing method based on a pyramid structure and a hierarchical detail model, and the method comprises the steps of inputting raster data and metadata information, and carrying out the processing; utilizing a quadtree slicing method to cut the processed raster data and metadata information into a tile set of a pyramid file structure; preprocessing the tile set cut into the pyramid file structure, and determining the range, the grade and the serial number of each tile in the tile set; and generating a final terrain tile according to the range, the grade and the serial number of the tile. A quadtree terrain and image slicing scheme is adopted, inlaying and invalid value processing do not need to be carried out on original terrains and images, the terrains and the images can be sliced quickly in a customized mode, and the problems that the loading efficiency of large-data-volume terrains and image data of a browser end is low, the display effect is poor, and many resources