Method for fusing seismic attributes on basis of fast independent component analysis

The invention relates to the technical field of independent component analysis (ICA) and the field of fusion of multiple seismic attributes, and provides a method for fusing multiple seismic attributes on the basis of fast independent component analysis (FICA). The scheme includes that each attribute participating in fusion is divided into attribute blocks with identical sizes, the quantities of the attribute blocks of the attributes are identical, a certain quantity of blocks are selected from the attribute blocks and are processed according to an FICA principle to obtain a separation matrix and a reciprocal hybrid matrix of the separation matrix, and all the blocks are mapped to an ICA domain by the separation matrix; the corresponding blocks of the attributes are fused in the ICA domain according to fusion rules, and finally a fusion result of the ICA domain is mapped to a spatial domain to obtain a fusion result; and the fusion result is beneficial to analyzing complicated stratum information and improvin