Method and device for double-layer flood fill seismic horizon space automatic tracking

The embodiment of the invention provides a method and a device for double-layer flood fill seismic horizon space automatic tracking. The method comprises the following steps: dividing a seismic work area into a plurality of blocks according to the size of the seismic work area; taking the common mid-points of horizon values greater than zero as seed points, and determining the block to which each seed point belongs according to the coordinate value of the seed point; and for each block containing seed points, carrying out automatic seismic horizon space tracking on the common mid-points around each seed point of the block by taking the seed point as the center, and determining the blocks containing seed points around the block by taking the block as the center. The technical problem that computer memory consumption is high during automatic space tracking of a three-dimensional seismic horizon in the prior art is solved. Thus, on the premise of ensuring the accuracy of seismic horizon space automatic tracking, the computer memory consumption in the process of automatic tracking of super-large-scale seismic work area horizon is reduced, and the efficiency of seismic horizon space automatic tracking is improved.